Impulse and Momentum Flashcard

Front

What is impulse?

Back

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

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum of an object. This is expressed as Impulse = ΔMomentum.

Front

Is impulse a vector or scalar quantity?

Back

Impulse is a vector quantity.

Front

What happens to impulse if the force applied to an object increases?

Back

If the force applied to an object increases, the impulse will also increase, assuming the time duration remains constant.

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mass (m) × velocity (v).

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg m/s).

Front

If a 0.5 kg ball is moving at 10 m/s, what is its momentum?

Back

The momentum is 5 kg m/s.

Front

What must occur for the momentum of an object to change?

Back

For the momentum of an object to change, there must be a change in velocity.

Front

What is the formula for impulse?

Back

Impulse (J) = Force (F) × Time (t).

Front

If a force is applied for a longer time, what happens to the impulse?

Back

The impulse will increase.