Potential and Kinetic Energy How is all energy

Potential and Kinetic Energy

How is all energy divided? All Energy Potential Energy Gravitation Potential Energy Elastic Potential Energy Kinetic Energy Chemical Potential Energy

Potential Energy is stored energy. – Water behind a dam – Hammer over head – Food on the plate Kinetic • energy of motion, the form capable of doing work – Flowing water – A falling hammer – Electrons regenerating ATP in a bio’l cell

What is Potential Energy? o Energy that is stored and waiting to be used later

Potential Energy The energy in matter due to its position or the arrangement of its parts

What is Gravitational Potential Energy? o Potential energy due to an object’s position Don’t look down, Rover! Good boy! o P. E. = mass x height x gravity

What is Elastic Potential Energy? o Potnetial energy due to compression or expansion of an elastic object. Notice the ball compressing and expanding

What is Chemical Potential Energy? o Potential energy stored within the chemical bonds of an object

What is Kinetic Energy? o Energy an object has due to its motion o K. E. =. 5(mass x speed 2)

Kinetic Energy of a moving object

What is Mechanical Energy? o Energy due to a object’s motion (kinetic) or position (potential). The bowling ball has mechanical energy. When the ball strikes the pins, mechanical energy is transferred to the pins!

Examples of Mechanical Energy

Potential or Kinetic Energy: Do You Know the Difference? Home Continue

Which energy type? An airplane circling in preparation for a landing Potential Energy Home Kinetic Energy Continue

Which energy type? A pile of coal that will be used for fuel Potential Energy Home Kinetic Energy Continue

Which energy type? A flag blowing in the wind Potential Energy Home Kinetic Energy Continue

Which energy type? A hatbox stored on the top shelf of a closet Potential Energy Home Kinetic Energy Continue

Which energy type? An unlit firecracker Potential Energy Home Kinetic Energy Continue

Which energy type? A hammer held above a nail Potential Energy Home Kinetic Energy Continue

Which energy type? A marble rolling down the aisle of your science classroom Potential Energy Home Kinetic Energy Continue

Which energy type? A new car battery Potential Energy Home Kinetic Energy Continue

Which energy type? Glucose stored in plants as a result of photosynthesis Potential Energy Home Kinetic Energy Continue

Which energy type? An ant crawling across a sandwich at a picnic Potential Energy Home Kinetic Energy Continue

Which energy type? A tennis racket about to crash down on a ball near the net Potential Energy Home Kinetic Energy Continue

Which energy type? An eyelash fluttering Potential Energy Home Kinetic Energy Continue

Which energy type? Energy at rest Potential Energy Home Kinetic Energy Continue

Which energy type? The release of stored energy Potential Energy Home Kinetic Energy Continue

Which energy type? Energy of motion Potential Energy Home Kinetic Energy Continue

Which energy type? A dam holding back a river’s water Potential Energy Home Kinetic Energy Continue

Which energy type? A mousetrap set and ready to spring Potential Energy Home Kinetic Energy Continue

Super Job! You are correct! Continue

Which energy type? A basketball flying toward the basket Potential Energy Home Kinetic Energy Continue

Which energy type? A sled released at the top of a snowy hill Potential Energy Home Kinetic Energy Continue

All clipart courtesy of Microsoft Clipart Gallery. www. microsoft. com Congratulations! You have reached the end of your energy journey. Job well done! The End

1. Daniel designed the above house. However, when he built a model of the house, he realized that the weight of the second story made the ceiling of the first story sag. What could Daniel do to fix this problem? A. add columns to the design of the first story to hold up the weight of the second story B. add more rooms to the second story C. make the outside walls stronger D. put an elevator in the house rather than a stair case 2. Cho is using technological design to build a clock based on the apparent motion of the Sun. Which of the following would be the best measure of success for Cho's clock? A. The time shown on Cho's clock is eleven hours ahead of the actual time. B. Cho's clock is small enough to be worn as a wrist watch. C. The time according to Cho's clock is very similar to the actual time. D. Cho's clock works even at night. 3. Sandra is creating a new piece of technology. Her teacher has provided the following steps for designing new technology: 1. Identify a problem or need 2. Design a solution or a product 3. Implement the chosen design 4. Evaluate the solution or the product Which of the following should Sandra do during the evaluation step? A. generate ideas on how to solve the problem efficiently B. build and test the solution or product C. gather information on the problem and possible solutions D. determine if the new solution or product solved the problem