Question

1. from \kinetic energy\...an objects kinetic energy remains constant as long as : (6 points)

an object remains the same and continues to move at the same speed
an object remains the same size
an object continues to move at the same speed
an object does not move

1. from \kinetic energy\...potential energy becomes kinetic energy when: (6 points)

an object gets bigger
an object gets smaller
an object starts to move
an object stops to move

Explanation:

For question 10: Kinetic energy is defined by the formula $KE=\frac{1}{2}mv^2$, where $m$ is mass and $v$ is speed. For KE to stay constant, both mass (object remains the same) and speed must be unchanged.
For question 11: Potential energy is stored energy based on position/state, while kinetic energy is energy of motion. When a stationary object starts moving, stored potential energy converts to kinetic energy of motion.

Answer:

1. an object remains the same and continues to move at the same speed
2. an object starts to move