Impulse and Momentum Concepts

The video introduces the concepts of momentum and impulse, explaining that momentum is a vector product of mass and velocity, while impulse is the integral of force over time. The video uses model rockets to illustrate impulse and discusses the impulse-momentum theorem, which states that impulse is the change in momentum. It concludes with an introduction to the conservation of momentum during collisions, highlighting Newton's laws.

What is the unit of momentum?

• Watt

• Joule

• Kilogram meters per second

• Newton

Impulse is defined as the integral of force over what?

• Mass

• Time

• Distance

• Velocity

How can impulse be approximated?

• By using a constant acceleration

• By using a variable mass

• By using an average force over a time interval

• By using a constant velocity

In the context of model rockets, what does the letter in the classification represent?

• The speed of the rocket

• The height the rocket can reach

• The weight of the rocket

• The impulse of the motor

If a model rocket motor is classified as B10, what does the '10' represent?

• The maximum height in meters

• The average force in newtons

• The total impulse in newton-seconds

• The weight of the motor in grams

What is the impulse-momentum theorem?

• Impulse is the change in momentum

• Impulse is the product of mass and velocity

• Impulse is the integral of velocity over time

• Impulse is the derivative of force with respect to time

According to Newton's third law, what happens to the forces during a collision?

• They cancel each other out

• They double in magnitude

• They become zero

• They are equal and opposite

What does it mean when the time derivative of momentum is zero during a collision?

• Momentum is constant

• Momentum is decreasing

• Momentum is increasing

• Momentum is zero

What is conserved during a collision according to the conservation of momentum?

• Velocity

• Momentum

• Energy

• Force

What is the relationship between impulse and change in momentum?

• Impulse is unrelated to change in momentum

• Impulse is double the change in momentum

• Impulse is the change in momentum

• Impulse is half the change in momentum