Question

which of the following is not an example of chemical potential energy?
a student conducts an experiment to investigate the effect of different ramp heights on the potential energy of a rolling ball. which of the following would be the most appropriate hypothesis for this experiment?

Explanation:

• Chemical Potential Energy: Chemical potential energy is stored in the bonds of chemical compounds. Coal, petroleum, and batteries (which involve chemical reactions) have chemical potential energy. Sunlight is a form of electromagnetic (solar) energy, not chemical potential energy.
• Potential Energy and Ramp Height: The formula for gravitational potential energy is \(U = mgh\) (where \(m\) is mass, \(g\) is acceleration due to gravity, and \(h\) is height). As the height (\(h\)) of the ramp (for an object on the ramp) increases, the potential energy (\(U\)) increases (assuming \(m\) and \(g\) are constant). So, the height of the ramp does affect potential energy.

Answer:

• For the first question (about chemical potential energy): d. Sunlight
• For the second question (about the hypothesis): c. The height of the ramp does not affect the potential energy.