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.

Multiple-Choice Questions

Answers

Free-Response Questions

Momentum

• 2024 Q2 - - (Experimental design) Masses oscillating on a spring, simple harmonic motion, energy, momentum
• 2024 Q5 - - Collision of two blocks, momentum, energy, forces
• 2022 Q4 - - Clay and ball collide with blocks, momentum, projectile motion
• 2021 Q3 - - Student pushes disk which hits a block, momentum
• 2018 Q5 - - Block dropped on another oscillating block, energy, momentum, simple harmonic motion

Angular momentum

• 2023 Q4 - - Block hanging from string around pulley, rotational motion, torque, angular momentum, energy, work
• 2019 Q1 - - Plunger pushes block and sphere across surface, kinematics, forces, energy, work, torque, angular momentum
• 2017 Q3 - - Disk collides with pivoting rod, rotational motion, torque, angular momentum

- 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

• Flipping Physics - Demonstrating How Helmets Affect Impulse and Impact Force
• Veritasium - Gyroscopic Precession
• Vsauce - Laws & Causes

• Collision Lab
• Angular Momentum
• Angular Momentum Collision

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.

Multiple-Choice Questions