Gravitational Potential Energy Quiz

What does the negative sign in the general gravitational potential energy equation signify?

• It signifies that potential energy decreases as objects move closer.

• It shows that potential energy is always positive.

• It means the equation is only valid on Earth.

• It indicates a repulsive force.

Which equation is used to calculate gravitational potential energy near the Earth's surface?

• The equation with the gravitational constant G.

• The equation with only mass and distance.

• The equation with velocity and time.

• The equation with mass, gravitational acceleration, and height.

When is the general form of the gravitational potential energy equation used?

• When moving objects over large distances from Earth.

• When calculating energy for stationary objects.

• When calculating energy for small objects.

• When dealing with objects at the Earth's surface.

How does potential energy change as an object is moved upwards from the Earth's surface?

• It remains constant.

• It decreases.

• It becomes zero.

• It increases.

What happens to potential energy as the distance from the Earth decreases?

• It becomes positive.

• It decreases.

• It remains unchanged.

• It increases.

In the example provided, what is the change in potential energy when moving from R1 to R2?

• It increases by 300 J.

• It remains the same.

• It decreases by 300 J.

• It increases by 400 J.

What is the potential energy change when moving from R2 to R1?

• It remains constant.

• It decreases by 400 J.

• It increases by 300 J.

• It decreases by 300 J.

What is the reference point for zero potential energy in the specific form of the equation?

• At the center of the Earth.

• At the Earth's surface.

• At infinity.

• At the highest point of an object's trajectory.

Why is the general form of the gravitational potential energy equation used for satellites?

• Because G is constant.

• Because it only considers mass.

• Because it accounts for large distances.

• Because it is simpler to use.

What is the main difference between the two gravitational potential energy equations?

• The specific form is used for all calculations.

• The specific form is more accurate.

• The general form is only for small objects.

• The reference point for zero potential energy differs.