Understanding Impulse and Momentum

Front

What is the unit of impulse?

Back

Newton-second (N·s)

Front

Calculate the impulse when a force of 10 N is applied for 5 seconds.

Back

Impulse = Force × Time = 10 N × 5 s = 50 N·s

Front

Impulse is equal to the change in which quantity?

Back

Momentum

Front

What is the momentum of a 2 kg object moving at 3 m/s?

Back

Momentum = Mass × Velocity = 2 kg × 3 m/s = 6 kg·m/s

Front

Which statement is true about impulse and momentum?

Back

Impulse is equal to the change in momentum.

Front

Define impulse in physics.

Back

Impulse is the product of the average force applied to an object and the time duration over which it is applied.

Front

What is the formula for calculating momentum?

Back

Momentum = Mass × Velocity

Front

If an object has a momentum of 10 kg·m/s and its mass is 2 kg, what is its velocity?

Back

Velocity = Momentum / Mass = 10 kg·m/s / 2 kg = 5 m/s

Front

What happens to momentum in a closed system during a collision?

Back

Momentum is conserved in a closed system during a collision.

Front

How does increasing the time of force application affect impulse?

Back

Increasing the time of force application increases the impulse.