Introduction

AP® Physics

1. Basics

2. Kinematics

3. Forces & Newton's Laws

4. Torque & Rotational Dynamics

5. Centripetal Force & Orbits

6. Energy, Work & Power

7. Momentum & Collisions

8. Simple Harmonic Motion & Waves

Another word you might hear in everyday life which has a specific meaning in physics is "momentum".

An object's **momentum** is its mass multiplied by its velocity. Momentum is a vector so it
has a magnitude and a direction, and the direction is the same as the velocity.

As you could probably guess, **angular momentum** is the rotational version of linear momentum.
Instead of multiplying an object's mass and its velocity, we're going to multiply an object's
rotational inertia and its angular velocity.

We'll also learn about **impulse** - a change in momentum caused by a force applied for a period of time.

After we understand momentum, we can learn about
**the law of conservation of momentum**
and how it applies to collisions in the next lesson.

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**Answers**

2

- Linear momentum

- Michel van Biezen - What is Momentum?
- Michel van Biezen - How is Momentum Different from Kinetic Energy?

- Impulse

- Michel van Biezen - What is Impulse?
- Michel van Biezen - What Does an Impulse Do?
- Michel van Biezen - Impulse is a Vector
- Khan Academy - Force vs time graphs

- Angular momentum

- Khan Academy - Angular momentum
- Matt Anderson - Conservation of Angular Momentum
- Matt Anderson - Angular momentum and cross product

- Linear momentum

- Organic Chemistry Tutor - Impulse and Momentum
- Khan Academy - Impulse and momentum dodgeball
- Michel van Biezen - Ball Hitting Wall Ex 1
- Michel van Biezen - Ball Hitting Wall Ex 4

- Angular momentum

- Michel van Biezen - Sand Bag on Rotating Disk
- Michel van Biezen - Child Jumping on Rotating Disk
- Michel van Biezen - Three Rotating Disks
- Michel van Biezen - Circling Hockey Puck on Table
- Organic Chemistry Tutor - Angular Momentum

Another word you might hear in everyday life which has a specific meaning in physics is "momentum".

An object's **momentum** is its mass multiplied by its velocity. Momentum is a vector so it
has a magnitude and a direction, and the direction is the same as the velocity.

As you could probably guess, **angular momentum** is the rotational version of linear momentum.
Instead of multiplying an object's mass and its velocity, we're going to multiply an object's
rotational inertia and its angular velocity.

We'll also learn about **impulse** - a change in momentum caused by a force applied for a period of time.

After we understand momentum, we can learn about
**the law of conservation of momentum**
and how it applies to collisions in the next lesson.

1. Linear momentum

2. Angular momentum

3. Impulse

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