IMPULSE-MOMENTUM THEOREM

It is the product of force and the time it acts on an object.

• Momentum

• Impulse

• Scalar

• Vector

Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds.  Which cart experiences the greatest impulse?

• Cart A

• Cart B

• They are the same

The impulse-momentum theorem states that

• the force on a moving object is equal to the magnitude of the impulse.

• the impulse on an object is less than the change in momentum it causes

• the impulse on an object is greater than the change in momentum it causes 

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

 Which takes more force  to catch, a bowling ball or a ping pong ball?

• ping pong ball because it has more momentum

• bowling ball because it has more momentum

• bowling ball because it has less momentum

• both require the same amount of force when catching

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s. Calculate the impulse on the ball.

• 1 N⋅s

• 33.3 N⋅s

• 6 N⋅s

• 1.6 N.s

The units for Impulse are

• N.s

• N/s

• S.n

• S/n

What is the formula for Impulse?

• I=FT

• I=Ft

• I=Tf

• I=TF

The impulse exerted on an object equals the object’s change in momentum.

• True

• False

•       If no impulse is exerted on an object, the momentum of the object will change.

• True

• False

What is the needed to change the momentum of a body?

• Time

• Force

• Velocity

• Mass