Question

gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. which statement best describes gabriel’s measurements?

• they will remain constant.
• they will both be recorded in joules.
• they will both be recorded in hertz.
• they will involve compressions.

Explanation:

1. Analyze each option:

• Option 1: When a ball rolls down a hill, energy (like potential energy converting to kinetic energy) and work done change, so they don't remain constant. Eliminate this.
• Option 2: In physics, the unit of energy and work is the joule. So measuring energy and work done by the ball would both be in joules. This is correct.
• Option 3: Hertz is the unit of frequency, not energy or work. Eliminate this.
• Option 4: Compressions are related to waves (like sound waves), not to a ball rolling down a hill's energy/work. Eliminate this.

Answer:

B. They will both be recorded in joules.