Momentum-Impulse

Which object has more momentum?

• 10kg mass at rest

• 10 kg mass moving at 1 m/s

• 10 kg mass moving at 2 m/s

• 10 kg mass moving at 3 m/s

Which object below will have a larger momentum?

• 10 kg mass moving at 1 m/s

• 20 kg mass moving at 1 m/s

• 30 kg mass moving at 1 m/s

• 40 kg mass moving at 1 m/s

If the car's engine provided 200N of force for 4 seconds, what is the impulse of the car?

• 800 kgm/s

• 51.3 kgm/s

• 0.0195 kgm/s

• 0 kgm/s

The momentum of an object depends upon the object's ___________&_____________.

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

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 B
• Cart A
• they are the same

The impulse-momentum theorem states that

• the impulse on an object is equal to the change in momentum it causes 
• the force on a moving object is equal to the magnitude of the impulse.
• 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

Which has more momentum?

• A parked semi truck

• A moving car

• they have the same amount of momentum

A bicycle has a momentum of 24 kg•m/s. What momentum would the bicycle have if it had twice the mass and was moving at the same speed?

• twice the momentum; 48 kg*m/s

• 1/2 the momentum; 12 kg*m/s

• 4x the momentum; 96 kg*m/s

• 1/4 the momentum; 6 kg*m/s

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

• 8 m/s

• 32 m/s

• 0.125 m/s

• 18 m/s

An egg is thrown at a wall and at a bed sheet. The force of impact will be

• Greater against the wall
• Greater against the sheet
• Force is equal