Question

1. differences in gravitational potential energy depend on an objects _______.

a) mass and speed
b) mass and height
c) height and speed
d) mass only

1. which type or types of energy does a blimp circling above a sporting event have?

a) kinetic energy and gravitational potential energy
b) kinetic energy and elastic potential energy
c) potential energy only
d) kinetic energy only

1. if an object is on top of a hill or in a position raised above the ground, it must have _______.

a) kinetic energy
b) gravitational potential energy
c) elastic potential energy
d) chemical potential energy

1. a stretched rubber band has what type of energy?

a) kinetic energy
b) gravitational potential energy
c) elastic potential energy
d) chemical potential energy

Explanation:

Question 6

Gravitational potential energy (GPE) is given by the formula \( GPE = mgh \), where \( m \) is mass, \( g \) is acceleration due to gravity, and \( h \) is height. So differences in GPE depend on mass and height. Speed is related to kinetic energy, not GPE.

A blimp circling is moving, so it has kinetic energy (energy of motion). It is also above the ground, so it has gravitational potential energy (energy due to height). Elastic potential energy is from stretched/compressed elastic objects, which a blimp doesn't have. So it has both kinetic and gravitational potential energy.

An object raised above the ground has gravitational potential energy because GPE depends on height (\( GPE = mgh \)). Kinetic energy is from motion (the object isn't stated to be moving), elastic potential energy is from elastic deformation (not applicable here), and chemical potential energy is from chemical bonds (not relevant here).

Answer:

B) mass and height

Question 7