Quick Check Questions Chapter 10 Work and Energy
![Quick. Check Questions Chapter 10 Work and Energy © 2015 Pearson Education, Inc. Quick. Check Questions Chapter 10 Work and Energy © 2015 Pearson Education, Inc.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-1.jpg)
![Quick. Check 10. 1 A child is on a playground swing, motionless at the Quick. Check 10. 1 A child is on a playground swing, motionless at the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-2.jpg)
![Quick. Check 10. 1 A child is on a playground swing, motionless at the Quick. Check 10. 1 A child is on a playground swing, motionless at the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-3.jpg)
![Quick. Check 10. 2 A skier is gliding down a gentle slope at a Quick. Check 10. 2 A skier is gliding down a gentle slope at a](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-4.jpg)
![Quick. Check 10. 2 A skier is gliding down a gentle slope at a Quick. Check 10. 2 A skier is gliding down a gentle slope at a](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-5.jpg)
![Quick. Check 10. 3 A tow rope pulls a skier up the slope at Quick. Check 10. 3 A tow rope pulls a skier up the slope at](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-6.jpg)
![Quick. Check 10. 3 A tow rope pulls a skier up the slope at Quick. Check 10. 3 A tow rope pulls a skier up the slope at](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-7.jpg)
![Quick. Check 10. 4 A crane lowers a girder into place at constant speed. Quick. Check 10. 4 A crane lowers a girder into place at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-8.jpg)
![Quick. Check 10. 4 A crane lowers a girder into place at constant speed. Quick. Check 10. 4 A crane lowers a girder into place at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-9.jpg)
![Quick. Check 10. 5 Robert pushes the box to the left at constant speed. Quick. Check 10. 5 Robert pushes the box to the left at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-10.jpg)
![Quick. Check 10. 5 Robert pushes the box to the left at constant speed. Quick. Check 10. 5 Robert pushes the box to the left at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-11.jpg)
![Quick. Check 10. 6 A constant force pushes a particle through a displacement. In Quick. Check 10. 6 A constant force pushes a particle through a displacement. In](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-12.jpg)
![Quick. Check 10. 6 A constant force pushes a particle through a displacement. In Quick. Check 10. 6 A constant force pushes a particle through a displacement. In](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-13.jpg)
![Quick. Check 10. 7 Which force below does the most work? All three displacements Quick. Check 10. 7 Which force below does the most work? All three displacements](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-14.jpg)
![Quick. Check 10. 7 Which force below does the most work? All three displacements Quick. Check 10. 7 Which force below does the most work? All three displacements](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-15.jpg)
![Quick. Check 10. 8 I swing a ball around my head at constant speed Quick. Check 10. 8 I swing a ball around my head at constant speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-16.jpg)
![Quick. Check 10. 8 I swing a ball around my head at constant speed Quick. Check 10. 8 I swing a ball around my head at constant speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-17.jpg)
![Quick. Check 10. 9 Ball A has half the mass and eight times the Quick. Check 10. 9 Ball A has half the mass and eight times the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-18.jpg)
![Quick. Check 10. 9 Ball A has half the mass and eight times the Quick. Check 10. 9 Ball A has half the mass and eight times the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-19.jpg)
![Quick. Check 10. 10 A light plastic cart and a heavy steel cart are Quick. Check 10. 10 A light plastic cart and a heavy steel cart are](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-20.jpg)
![Quick. Check 10. 10 A light plastic cart and a heavy steel cart are Quick. Check 10. 10 A light plastic cart and a heavy steel cart are](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-21.jpg)
![Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-22.jpg)
![Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-23.jpg)
![Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-24.jpg)
![Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-25.jpg)
![Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-26.jpg)
![Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-27.jpg)
![Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-28.jpg)
![Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-29.jpg)
![Quick. Check 10. 15 A small child slides down the four frictionless slides A–D. Quick. Check 10. 15 A small child slides down the four frictionless slides A–D.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-30.jpg)
![Quick. Check 10. 15 A small child slides down the four frictionless slides A–D. Quick. Check 10. 15 A small child slides down the four frictionless slides A–D.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-31.jpg)
![Quick. Check 10. 16 Three balls are thrown from a cliff with the same Quick. Check 10. 16 Three balls are thrown from a cliff with the same](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-32.jpg)
![Quick. Check 10. 16 Three balls are thrown from a cliff with the same Quick. Check 10. 16 Three balls are thrown from a cliff with the same](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-33.jpg)
![Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-34.jpg)
![Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-35.jpg)
![Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-36.jpg)
![Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-37.jpg)
![Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-38.jpg)
![Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-39.jpg)
![Quick. Check 10. 20 Four students run up the stairs in the time shown. Quick. Check 10. 20 Four students run up the stairs in the time shown.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-40.jpg)
![Quick. Check 10. 20 Four students run up the stairs in the time shown. Quick. Check 10. 20 Four students run up the stairs in the time shown.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-41.jpg)
![Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-42.jpg)
![Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-43.jpg)
- Slides: 43
![Quick Check Questions Chapter 10 Work and Energy 2015 Pearson Education Inc Quick. Check Questions Chapter 10 Work and Energy © 2015 Pearson Education, Inc.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-1.jpg)
Quick. Check Questions Chapter 10 Work and Energy © 2015 Pearson Education, Inc.
![Quick Check 10 1 A child is on a playground swing motionless at the Quick. Check 10. 1 A child is on a playground swing, motionless at the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-2.jpg)
Quick. Check 10. 1 A child is on a playground swing, motionless at the highest point of his arc. What energy transformation takes place as he swings back down to the lowest point of his motion? A. B. C. D. E. K Ug Ug K Eth K Ug Eth K Eth © 2015 Pearson Education, Inc. Slide 10 -2
![Quick Check 10 1 A child is on a playground swing motionless at the Quick. Check 10. 1 A child is on a playground swing, motionless at the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-3.jpg)
Quick. Check 10. 1 A child is on a playground swing, motionless at the highest point of his arc. What energy transformation takes place as he swings back down to the lowest point of his motion? A. B. C. D. E. K Ug Ug K Eth K Ug Eth K Eth © 2015 Pearson Education, Inc. Slide 10 -3
![Quick Check 10 2 A skier is gliding down a gentle slope at a Quick. Check 10. 2 A skier is gliding down a gentle slope at a](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-4.jpg)
Quick. Check 10. 2 A skier is gliding down a gentle slope at a constant speed. What energy transformation is taking place? A. B. C. D. E. K Ug Ug K Eth K Ug Eth K Eth © 2015 Pearson Education, Inc. Slide 10 -4
![Quick Check 10 2 A skier is gliding down a gentle slope at a Quick. Check 10. 2 A skier is gliding down a gentle slope at a](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-5.jpg)
Quick. Check 10. 2 A skier is gliding down a gentle slope at a constant speed. What energy transformation is taking place? A. B. C. D. E. K Ug Ug K Eth K Ug Eth K Eth © 2015 Pearson Education, Inc. Slide 10 -5
![Quick Check 10 3 A tow rope pulls a skier up the slope at Quick. Check 10. 3 A tow rope pulls a skier up the slope at](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-6.jpg)
Quick. Check 10. 3 A tow rope pulls a skier up the slope at constant speed. What energy transfer (or transfers) is taking place? A. B. C. D. E. W Ug W K W Eth Both A and B Both A and C © 2015 Pearson Education, Inc. Slide 10 -6
![Quick Check 10 3 A tow rope pulls a skier up the slope at Quick. Check 10. 3 A tow rope pulls a skier up the slope at](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-7.jpg)
Quick. Check 10. 3 A tow rope pulls a skier up the slope at constant speed. What energy transfer (or transfers) is taking place? A. B. C. D. E. W Ug W K W Eth Both A and B Both A and C © 2015 Pearson Education, Inc. Slide 10 -7
![Quick Check 10 4 A crane lowers a girder into place at constant speed Quick. Check 10. 4 A crane lowers a girder into place at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-8.jpg)
Quick. Check 10. 4 A crane lowers a girder into place at constant speed. Consider the work Wg done by gravity and the work WT done by the tension in the cable. Which is true? A. B. C. D. E. Wg > 0 and WT > 0 Wg > 0 and WT < 0 Wg < 0 and WT > 0 Wg < 0 and WT < 0 Wg = 0 and WT = 0 © 2015 Pearson Education, Inc. Slide 10 -8
![Quick Check 10 4 A crane lowers a girder into place at constant speed Quick. Check 10. 4 A crane lowers a girder into place at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-9.jpg)
Quick. Check 10. 4 A crane lowers a girder into place at constant speed. Consider the work Wg done by gravity and the work WT done by the tension in the cable. Which is true? A. B. C. D. E. Wg > 0 and WT > 0 Wg > 0 and WT < 0 Wg < 0 and WT > 0 Wg < 0 and WT < 0 Wg = 0 and WT = 0 © 2015 Pearson Education, Inc. The downward force of gravity is in the direction of motion positive work. The upward tension is in the direction opposite the motion negative work. Slide 10 -9
![Quick Check 10 5 Robert pushes the box to the left at constant speed Quick. Check 10. 5 Robert pushes the box to the left at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-10.jpg)
Quick. Check 10. 5 Robert pushes the box to the left at constant speed. In doing so, Robert does ______ work on the box. A. Positive B. Negative C. Zero © 2015 Pearson Education, Inc. Slide 10 -10
![Quick Check 10 5 Robert pushes the box to the left at constant speed Quick. Check 10. 5 Robert pushes the box to the left at constant speed.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-11.jpg)
Quick. Check 10. 5 Robert pushes the box to the left at constant speed. In doing so, Robert does ______ work on the box. A. Positive B. Negative C. Zero Force is in the direction of displacement positive work © 2015 Pearson Education, Inc. Slide 10 -11
![Quick Check 10 6 A constant force pushes a particle through a displacement In Quick. Check 10. 6 A constant force pushes a particle through a displacement. In](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-12.jpg)
Quick. Check 10. 6 A constant force pushes a particle through a displacement. In which of these three cases does the force do negative work? D. Both A and B E. Both A and C © 2015 Pearson Education, Inc. Slide 10 -12
![Quick Check 10 6 A constant force pushes a particle through a displacement In Quick. Check 10. 6 A constant force pushes a particle through a displacement. In](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-13.jpg)
Quick. Check 10. 6 A constant force pushes a particle through a displacement. In which of these three cases does the force do negative work? D. Both A and B E. Both A and C © 2015 Pearson Education, Inc. Slide 10 -13
![Quick Check 10 7 Which force below does the most work All three displacements Quick. Check 10. 7 Which force below does the most work? All three displacements](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-14.jpg)
Quick. Check 10. 7 Which force below does the most work? All three displacements are the same. A. B. C. D. The 10 N force The 8 N force The 6 N force They all do the same work. © 2015 Pearson Education, Inc. sin 60 = 0. 87 cos 60 = 0. 50 Slide 10 -14
![Quick Check 10 7 Which force below does the most work All three displacements Quick. Check 10. 7 Which force below does the most work? All three displacements](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-15.jpg)
Quick. Check 10. 7 Which force below does the most work? All three displacements are the same. A. B. C. D. The 10 N force The 8 N force The 6 N force They all do the same work. © 2015 Pearson Education, Inc. sin 60 = 0. 87 cos 60 = 0. 50 Slide 10 -15
![Quick Check 10 8 I swing a ball around my head at constant speed Quick. Check 10. 8 I swing a ball around my head at constant speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-16.jpg)
Quick. Check 10. 8 I swing a ball around my head at constant speed in a circle with circumference 3 m. What is the work done on the ball by the 10 N tension force in the string during one revolution of the ball? A. B. C. D. 30 J 20 J 10 J 0 J © 2015 Pearson Education, Inc. Slide 10 -16
![Quick Check 10 8 I swing a ball around my head at constant speed Quick. Check 10. 8 I swing a ball around my head at constant speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-17.jpg)
Quick. Check 10. 8 I swing a ball around my head at constant speed in a circle with circumference 3 m. What is the work done on the ball by the 10 N tension force in the string during one revolution of the ball? A. B. C. D. 30 J 20 J 10 J 0 J © 2015 Pearson Education, Inc. Slide 10 -17
![Quick Check 10 9 Ball A has half the mass and eight times the Quick. Check 10. 9 Ball A has half the mass and eight times the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-18.jpg)
Quick. Check 10. 9 Ball A has half the mass and eight times the kinetic energy of ball B. What is the speed ratio v. A/v. B? A. B. C. D. E. 16 4 2 1/4 1/16 © 2015 Pearson Education, Inc. Slide 10 -18
![Quick Check 10 9 Ball A has half the mass and eight times the Quick. Check 10. 9 Ball A has half the mass and eight times the](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-19.jpg)
Quick. Check 10. 9 Ball A has half the mass and eight times the kinetic energy of ball B. What is the speed ratio v. A/v. B? A. B. C. D. E. 16 4 2 1/4 1/16 © 2015 Pearson Education, Inc. Slide 10 -19
![Quick Check 10 10 A light plastic cart and a heavy steel cart are Quick. Check 10. 10 A light plastic cart and a heavy steel cart are](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-20.jpg)
Quick. Check 10. 10 A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1. 0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ____ that of the heavy steel cart. A. B. C. D. Greater than Equal to Less than Can’t say. It depends on how big the force is. © 2015 Pearson Education, Inc. Slide 10 -20
![Quick Check 10 10 A light plastic cart and a heavy steel cart are Quick. Check 10. 10 A light plastic cart and a heavy steel cart are](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-21.jpg)
Quick. Check 10. 10 A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1. 0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ____ that of the heavy steel cart. A. B. C. D. Greater than Same force, same distance same work done Equal to Same work change of kinetic energy Less than Can’t say. It depends on how big the force is. © 2015 Pearson Education, Inc. Slide 10 -21
![Quick Check 10 11 Each of the boxes shown is pulled for 10 m Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-22.jpg)
Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m across a level, frictionless floor by the force given. Which box experiences the greatest change in its kinetic energy? © 2015 Pearson Education, Inc. Slide 10 -22
![Quick Check 10 11 Each of the boxes shown is pulled for 10 m Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-23.jpg)
Quick. Check 10. 11 Each of the boxes shown is pulled for 10 m across a level, frictionless floor by the force given. Which box experiences the greatest change in its kinetic energy? D Work-energy equation: ∆K = W = Fd. All have same d, so largest work (and hence largest ∆K) corresponds to largest force. © 2015 Pearson Education, Inc. Slide 10 -23
![Quick Check 10 12 Each of the 1 0 kg boxes starts at rest Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-24.jpg)
Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest and is then is pulled for 2. 0 m across a level, frictionless floor by a rope with the noted force at the noted angle. Which box has the highest final speed? © 2015 Pearson Education, Inc. Slide 10 -24
![Quick Check 10 12 Each of the 1 0 kg boxes starts at rest Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-25.jpg)
Quick. Check 10. 12 Each of the 1. 0 kg boxes starts at rest and is then is pulled for 2. 0 m across a level, frictionless floor by a rope with the noted force at the noted angle. Which box has the highest final speed? B © 2015 Pearson Education, Inc. Slide 10 -25
![Quick Check 10 13 Rank in order from largest to smallest the gravitational potential Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-26.jpg)
Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential energies of the balls. A. B. C. D. 1>2=4>3 1>2>3>4 3>2>4>1 3>2=4>1 © 2015 Pearson Education, Inc. Slide 10 -26
![Quick Check 10 13 Rank in order from largest to smallest the gravitational potential Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-27.jpg)
Quick. Check 10. 13 Rank in order, from largest to smallest, the gravitational potential energies of the balls. A. B. C. D. 1>2=4>3 1>2>3>4 3>2>4>1 3>2=4>1 © 2015 Pearson Education, Inc. Slide 10 -27
![Quick Check 10 14 Starting from rest a marble first rolls down a steeper Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-28.jpg)
Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper hill, then down a less steep hill of the same height. For which is it going faster at the bottom? A. B. C. D. Faster at the bottom of the steeper hill Faster at the bottom of the less steep hill Same speed at the bottom of both hills Can’t say without knowing the mass of the marble © 2015 Pearson Education, Inc. Slide 10 -28
![Quick Check 10 14 Starting from rest a marble first rolls down a steeper Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-29.jpg)
Quick. Check 10. 14 Starting from rest, a marble first rolls down a steeper hill, then down a less steep hill of the same height. For which is it going faster at the bottom? A. B. C. D. Faster at the bottom of the steeper hill Faster at the bottom of the less steep hill Same speed at the bottom of both hills Can’t say without knowing the mass of the marble © 2015 Pearson Education, Inc. Slide 10 -29
![Quick Check 10 15 A small child slides down the four frictionless slides AD Quick. Check 10. 15 A small child slides down the four frictionless slides A–D.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-30.jpg)
Quick. Check 10. 15 A small child slides down the four frictionless slides A–D. Rank in order, from largest to smallest, her speeds at the bottom. A. B. C. D. v. D > v. A > v. B > v. C v. D > v. A = v. B > v. C > v. A > v. B > v. D v. A = v. B = v. C = v. D © 2015 Pearson Education, Inc. Slide 10 -30
![Quick Check 10 15 A small child slides down the four frictionless slides AD Quick. Check 10. 15 A small child slides down the four frictionless slides A–D.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-31.jpg)
Quick. Check 10. 15 A small child slides down the four frictionless slides A–D. Rank in order, from largest to smallest, her speeds at the bottom. A. B. C. D. v. D > v. A > v. B > v. C v. D > v. A = v. B > v. C > v. A > v. B > v. D v. A = v. B = v. C = v. D © 2015 Pearson Education, Inc. Slide 10 -31
![Quick Check 10 16 Three balls are thrown from a cliff with the same Quick. Check 10. 16 Three balls are thrown from a cliff with the same](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-32.jpg)
Quick. Check 10. 16 Three balls are thrown from a cliff with the same speed but at different angles. Which ball has the greatest speed just before it hits the ground? A. B. C. D. Ball A Ball B Ball C All balls have the same speed. © 2015 Pearson Education, Inc. Slide 10 -32
![Quick Check 10 16 Three balls are thrown from a cliff with the same Quick. Check 10. 16 Three balls are thrown from a cliff with the same](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-33.jpg)
Quick. Check 10. 16 Three balls are thrown from a cliff with the same speed but at different angles. Which ball has the greatest speed just before it hits the ground? A. B. C. D. Ball A Ball B Ball C All balls have the same speed. © 2015 Pearson Education, Inc. Slide 10 -33
![Quick Check 10 17 A hockey puck sliding on smooth ice at 4 ms Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-34.jpg)
Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s comes to a 1 -m-high hill. Will it make it to the top of the hill? A. B. C. D. Yes No Can’t answer without knowing the mass of the puck Can’t say without knowing the angle of the hill © 2015 Pearson Education, Inc. Slide 10 -34
![Quick Check 10 17 A hockey puck sliding on smooth ice at 4 ms Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-35.jpg)
Quick. Check 10. 17 A hockey puck sliding on smooth ice at 4 m/s comes to a 1 -m-high hill. Will it make it to the top of the hill? A. B. C. D. Yes No Can’t answer without knowing the mass of the puck Can’t say without knowing the angle of the hill © 2015 Pearson Education, Inc. Slide 10 -35
![Quick Check 10 18 A springloaded gun shoots a plastic ball with a launch Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-36.jpg)
Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch speed of 2. 0 m/s. If the spring is compressed twice as far, the ball’s launch speed will be A. B. C. D. E. 1. 0 m/s 2. 8 m/s 4. 0 m/s 16. 0 m/s © 2015 Pearson Education, Inc. Slide 10 -36
![Quick Check 10 18 A springloaded gun shoots a plastic ball with a launch Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-37.jpg)
Quick. Check 10. 18 A spring-loaded gun shoots a plastic ball with a launch speed of 2. 0 m/s. If the spring is compressed twice as far, the ball’s launch speed will be A. B. C. D. E. 1. 0 m/s 2. 8 m/s 4. 0 m/s 16. 0 m/s © 2015 Pearson Education, Inc. Conservation of energy: Double x double v Slide 10 -37
![Quick Check 10 19 A springloaded gun shoots a plastic ball with a launch Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-38.jpg)
Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch speed of 2. 0 m/s. If the spring is replaced with a new spring having twice the spring constant (but still compressed the same distance), the ball’s launch speed will be A. B. C. D. E. 1. 0 m/s 2. 8 m/s 4. 0 m/s 16. 0 m/s © 2015 Pearson Education, Inc. Slide 10 -38
![Quick Check 10 19 A springloaded gun shoots a plastic ball with a launch Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-39.jpg)
Quick. Check 10. 19 A spring-loaded gun shoots a plastic ball with a launch speed of 2. 0 m/s. If the spring is replaced with a new spring having twice the spring constant (but still compressed the same distance), the ball’s launch speed will be A. B. C. D. E. 1. 0 m/s 2. 8 m/s 4. 0 m/s 16. 0 m/s © 2015 Pearson Education, Inc. Conservation of energy: Double k increase v by square root of 2 Slide 10 -39
![Quick Check 10 20 Four students run up the stairs in the time shown Quick. Check 10. 20 Four students run up the stairs in the time shown.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-40.jpg)
Quick. Check 10. 20 Four students run up the stairs in the time shown. Which student has the largest power output? © 2015 Pearson Education, Inc. Slide 10 -40
![Quick Check 10 20 Four students run up the stairs in the time shown Quick. Check 10. 20 Four students run up the stairs in the time shown.](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-41.jpg)
Quick. Check 10. 20 Four students run up the stairs in the time shown. Which student has the largest power output? B. © 2015 Pearson Education, Inc. Slide 10 -41
![Quick Check 10 21 Four toy cars accelerate from rest to their top speed Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-42.jpg)
Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed in a certain amount of time. The masses of the cars, the final speeds, and the time to reach this speed are noted in the table. Which car has the greatest power? © 2015 Pearson Education, Inc. Slide 10 -42
![Quick Check 10 21 Four toy cars accelerate from rest to their top speed Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed](https://slidetodoc.com/presentation_image_h/871b33313ad5225f8aa45af1943c5939/image-43.jpg)
Quick. Check 10. 21 Four toy cars accelerate from rest to their top speed in a certain amount of time. The masses of the cars, the final speeds, and the time to reach this speed are noted in the table. Which car has the greatest power? © 2015 Pearson Education, Inc. Slide 10 -43
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