Impulse / Momentum

The momentum of an object depends on the objects _______ & ________

• size and shape

• mass and velocity

• mass and speed

• mass and energy

The impulse-momentum theorem states that

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

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

A runner has a momentum of 670kg m/s and is traveling at a velocity of 9 m/s. What is their mass?

• 6030 kg

• 0.0134 kg

• 74.4 kg

• 80 kg

The difference between a car hitting a wall and a car hitting a hay stack is

• the impulse on the car hitting the wall is greater

• the force on the car hitting the hay stack is greater

• the change in momentum of the car hitting the wall is greater

• the collision time of the car hitting the hay stack is greater

When the speed of an object is doubled, its momentum...

• remains unchanged in accord with the conservation of momentum

• quadruples

• doubles

• decreases

If two objects have the same mass, then the faster moving object has _______ momentum

• more

• the same

• less

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

• bowling ball because it has more momentum

• both require the same amount of force

• ping pong ball because it has more momentum

• bowling ball because it has less momentum

How can a tennis ball and a bowling ball have the same momentum?

• have the same speed

• one is moving backwards

• have different speeds

• they can't

Which has more momentum?

• a parked semi-truck

• a moving car

• they have the same momentum

A 2kg cart has a momentum of 16 kg m/s. What is its velocity?

• 8m/s

• 0.125 m/s

• 32 m/s

• 18 m/s