Which of the following is a form of kinetic energy?

Which of the following objects has the highest kinetic energy ($E=\frac{1}{2}m{v}^2$)?

Which of the following statements about energy flow is true?

Which of the following activities uses the most amount of $\mathrm{kinetic} \mathrm{energy}$?

Which of the following best describes the difference between $\mathrm{potential}\mathrm{energy}$ and $\mathrm{kinetic}\mathrm{energy}$?

How are $\mathrm{potential energy}$ and $\mathrm{kinetic energy}$ related in a closed system?

What is the ultimate source of energy for most processes on $Earth$?

Which of the following devices is designed to convert energy into mechanical work?

How are $\mathrm{potential energy}$ and $\mathrm{kinetic energy}$ related in a closed system?