ACCELERATION Acceleration Acceleration is a vector which measures
![ACCELERATION ACCELERATION](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-1.jpg)
![Acceleration • Acceleration is a vector which measures the change in the velocity of Acceleration • Acceleration is a vector which measures the change in the velocity of](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-2.jpg)
![This means acceleration could be any of the following three… 1. A change in This means acceleration could be any of the following three… 1. A change in](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-3.jpg)
![Acceleration • Acceleration is a measure of the RATE at which velocity changes. • Acceleration • Acceleration is a measure of the RATE at which velocity changes. •](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-4.jpg)
![Average Acceleration Equation • The equation for Average Acceleration should be similar, since it Average Acceleration Equation • The equation for Average Acceleration should be similar, since it](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-5.jpg)
![Constant Acceleration • An object is moving at constant acceleration if it is changing Constant Acceleration • An object is moving at constant acceleration if it is changing](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-6.jpg)
![Acceleration that is not Constant Acceleration that is not Constant](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-7.jpg)
![Positive vs Negative Acceleration • Since acceleration is a vector quantity, it has a Positive vs Negative Acceleration • Since acceleration is a vector quantity, it has a](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-8.jpg)
![Positive Acceleration – 2 ways Positive Acceleration – 2 ways](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-9.jpg)
![Positive Acceleration – 2 ways • Explanation: • In A, the object is moving Positive Acceleration – 2 ways • Explanation: • In A, the object is moving](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-10.jpg)
![Positive Acceleration – 2 ways • In B, the object is moving in the Positive Acceleration – 2 ways • In B, the object is moving in the](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-11.jpg)
![Negative Acceleration – 2 ways Negative Acceleration – 2 ways](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-12.jpg)
![Negative Acceleration – 2 ways • Explanation: • In C, the object is moving Negative Acceleration – 2 ways • Explanation: • In C, the object is moving](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-13.jpg)
![Negative Acceleration – 2 ways • In D, the object is moving in the Negative Acceleration – 2 ways • In D, the object is moving in the](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-14.jpg)
![Symbol Reminders • In physics (+) and (-) describes a direction • Negative accelerations Symbol Reminders • In physics (+) and (-) describes a direction • Negative accelerations](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-15.jpg)
- Slides: 15
![ACCELERATION ACCELERATION](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-1.jpg)
ACCELERATION
![Acceleration Acceleration is a vector which measures the change in the velocity of Acceleration • Acceleration is a vector which measures the change in the velocity of](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-2.jpg)
Acceleration • Acceleration is a vector which measures the change in the velocity of an object. • It has magnitude and direction.
![This means acceleration could be any of the following three 1 A change in This means acceleration could be any of the following three… 1. A change in](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-3.jpg)
This means acceleration could be any of the following three… 1. A change in speed; the magnitude of the velocity (Ex: from 34 km/h to 67 km/h) 2. A change in direction (Ex: from East to North East) 3. A change in both speed and direction (Ex: from 34 km/h East to 12 km/h West)
![Acceleration Acceleration is a measure of the RATE at which velocity changes Acceleration • Acceleration is a measure of the RATE at which velocity changes. •](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-4.jpg)
Acceleration • Acceleration is a measure of the RATE at which velocity changes. • Since velocity is a measure of the rate of change in displacement and had the equation…… V=d t
![Average Acceleration Equation The equation for Average Acceleration should be similar since it Average Acceleration Equation • The equation for Average Acceleration should be similar, since it](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-5.jpg)
Average Acceleration Equation • The equation for Average Acceleration should be similar, since it is a rate of change in velocity… a = Δv Δt a = acceleration (m/s/s or m/s 2) Δv = change in velocity (m/s) Δt = time interval (s) • m/s/s = What this really means is that for every second that passes the velocity of the object will change by this many meters per second.
![Constant Acceleration An object is moving at constant acceleration if it is changing Constant Acceleration • An object is moving at constant acceleration if it is changing](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-6.jpg)
Constant Acceleration • An object is moving at constant acceleration if it is changing its velocity by the SAME amount each second.
![Acceleration that is not Constant Acceleration that is not Constant](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-7.jpg)
Acceleration that is not Constant
![Positive vs Negative Acceleration Since acceleration is a vector quantity it has a Positive vs Negative Acceleration • Since acceleration is a vector quantity, it has a](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-8.jpg)
Positive vs Negative Acceleration • Since acceleration is a vector quantity, it has a direction associated with it. The direction of the acceleration vector depends on two things: vwhether the object is speeding up or slowing down vwhether the object is moving in the + or - direction • The general principle for determining the acceleration is: • If an object is slowing down, then its acceleration is in the opposite direction of its motion.
![Positive Acceleration 2 ways Positive Acceleration – 2 ways](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-9.jpg)
Positive Acceleration – 2 ways
![Positive Acceleration 2 ways Explanation In A the object is moving Positive Acceleration – 2 ways • Explanation: • In A, the object is moving](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-10.jpg)
Positive Acceleration – 2 ways • Explanation: • In A, the object is moving in the positive direction (positive velocity) and is speeding up. • When an object is speeding up, the acceleration is in the same direction as the velocity, so a positive acceleration.
![Positive Acceleration 2 ways In B the object is moving in the Positive Acceleration – 2 ways • In B, the object is moving in the](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-11.jpg)
Positive Acceleration – 2 ways • In B, the object is moving in the negative direction (negative velocity) and is slowing down. • When an object is slowing down, the acceleration is in the opposite direction as the velocity, so a positive acceleration.
![Negative Acceleration 2 ways Negative Acceleration – 2 ways](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-12.jpg)
Negative Acceleration – 2 ways
![Negative Acceleration 2 ways Explanation In C the object is moving Negative Acceleration – 2 ways • Explanation: • In C, the object is moving](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-13.jpg)
Negative Acceleration – 2 ways • Explanation: • In C, the object is moving in the positive direction (positive velocity) and is slowing down. • When an object is slowing down, the acceleration is in the opposite direction as the velocity, so a negative acceleration.
![Negative Acceleration 2 ways In D the object is moving in the Negative Acceleration – 2 ways • In D, the object is moving in the](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-14.jpg)
Negative Acceleration – 2 ways • In D, the object is moving in the negative direction (negative velocity) and is speeding up. • When an object is speeding up, the acceleration is in the same direction as the velocity, so a negative acceleration.
![Symbol Reminders In physics and describes a direction Negative accelerations Symbol Reminders • In physics (+) and (-) describes a direction • Negative accelerations](https://slidetodoc.com/presentation_image_h2/f42c6bc526d80e43168d07f928f8ddc8/image-15.jpg)
Symbol Reminders • In physics (+) and (-) describes a direction • Negative accelerations do not mean values that are less than zero • Ex: -2 m/s 2 = means an acceleration of 2 m/s 2 directed in the negative direction
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