An object in motion need not have

a. velocity
b. momentum
c. kinetic energy d. potential energy

An object that has momentum must also have
a. acceleration b. impulse c.kinetic energy d. potential energy

1. D. If it's to move about, it needs to change position with respect to time. If it's moving, then it has an associated momentum. Of course, if it's moving, it needs kinetic energy, because if it didn't, then its velocity is zero. No potential energy is needed. Putting a rock on a table and leaving it there will have potential energy, but none of the other parameters.

2. If it has momentum, it needs to be moving, which means it has an associated kinetic energy (in fact, the kinetic energy formula was derived by using the change in momentum in one of the steps). Impulse is the change in momentum, nobody said it needed to change. It doesn't need acceleration because it's the change in velocity (nobody said it needed to change). Now, if an object were to have a force, it needs an acceleration (since the average force is the change in momentum over the change in time), fo sho.

1. potential energy. This is stored energy, but you can have none & be in motion

2. Is NOT acceleration, because the equation for momentum is momentum = mass * velocity, so you can have momentum at a constant velocity, hence no acceleration. Since it is moving, the object has kinetic energy

2nd part:
An object has mass so if it has momentum
it MUST have velocity (by definition) and
by definition also it must have KE = 1/2mV²
(the other quantity that only consists of mass and velocity)

1. D
2. C

an object with momentum need not have any acceleration

1. D

2. A