Mometum - TCA Review

Look at the graphs above. These describe the motion of the objects before the collision. What can be said about the force exerted on object 1 if object 1 and 2 collided? (Right is positive. Lefts is negative)

• the unbalanced force exerted on object 1 is to the right (positive direction)

• The unbalanced force exerted on object 1 is the the left (negative direction)

• There is no unbalanced for exerted on object 1

Looking at the graphs above, what would be the direction of the momentum of object 2?

• the momentum is to the left (negative direction)

• The momentum is to the right (positive direction)

• the momentum is zero

If the mass of object1 is 5kg what would the momentum be based on the graph?

• -2kgm/s

• -10kgm/s

• 25kgm/s

• 5kgm/s

If object 1 has a mass of 5kg and object 2 has a mass of 10kg, what would the total momentum of the system be if both object 1 and 2 were in the system?

• 60kgm/s

• -10kgm/s

• 40kgm/s

• 3kgm/s

If the total amount of momentum in a system is 10kgm/s before a collision what would it be after the collision

• The total momentum will be the same (10kgm/s)

• The total momentum will be less than 10kgm/s

• The total momentum will be more than 10kgm/s

Looking at the graphs above. If both objects have a mass of 10kg compare their change in momentum (impulse).

• Object 1 had a greater change in momentum

• Object 2 had a greater change in momentum

• They both had the same change in momentum.

Looking at the graph which direction would the force have been exerted on these objects to cause their change in momentum.

• Force was exerted in the positive direction

• Force was exerted in the negative direction

• No Force was exerted on the objects

If the mass of both objects is 10kg, which object had a greater force exerted on it?

• Object 1

• Object 2

• The forces exerted of both objects were the same

What must be done to an object in order to change its momentum?

• The object must remain constant

• There must be no forces exerted on the object at any time

• A mass must be created and then destroyed

• A force must be exerted on the object for a certain amount of time

The idea of a seatbelt is to reduce the force in a collision by ___________ the time of collision.

• increasing

• Decreasing

• keeping the same