Momentum/Impulse Flashcard

Front

What are the units for momentum?

Back

kg-m/s

Front

What does the impulse-momentum theorem state?

Back

The impulse on an object is equal to the change in momentum it causes.

Front

What are the units for kinetic energy?

Back

J

Front

In a perfectly inelastic collision, what is conserved?

Back

Momentum only.

Front

How do you calculate the final speed of two colliding carts?

Back

Use the formula: (m1*v1 + m2*v2) / (m1 + m2).

Front

What is the formula for momentum?

Back

p = m*v (momentum = mass * velocity).

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over time.

Front

What is the relationship between impulse and force?

Back

Impulse = Force * time.

Front

What happens to kinetic energy in a perfectly inelastic collision?

Back

Kinetic energy is not conserved.

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.