10. Conservation of Energy

When skiing downhill, what type of potential energy do skiers primarily take advantage of?

Which of the following formulas is used to find gravitational potential energy?

Which of the following objects has the greatest gravitational potential energy ($E=mgh$)?

Which term describes the energy that is stored due to the height of an object above the ground?

Which of the following expressions gives the gravitational potential energy of the Earth-Sun system, where $M$ is the mass of the Sun, $m$ is the mass of the Earth, $G$ is the universal gravitational constant, and $r$ is the distance between their centers?

Which of the following examples describes an increase in $U:\mathrm{gravitational} \mathrm{potential} \mathrm{energy}$?

Which of the following factors would change the gravitational potential energy of an object near the Earth's surface? $U=mgh$

Is it possible for the gravitational potential energy of an object to be negative?

At which position does a simple pendulum have the greatest $U$ (gravitational potential energy)?

Two points, a and b, are located at heights $h_a$ and $h_b$ above the ground, respectively. If the gravitational potential energy at a height $h$ is given by $U=mgh$, what are the gravitational potentials (per unit mass) at points a and b?

A ball is thrown vertically upward from the ground. Ignoring air resistance, at what point during its flight does the ball have the greatest total mechanical energy ($E=K+U$, where $K$ is kinetic energy and $U$ is gravitational potential energy)?

If a $2\mathrm{kg}$ rock has $196J$ of gravitational potential energy near Earth's surface, what is its height above the ground? (Assume $g=9.8m/s^2$)

An object's gravitational potential energy is not directly related to which of the following?

At which position does a rollercoaster have the greatest $U=mgh$ (gravitational potential energy)?

Which of the following is an example of gravitational potential energy?