HOTS Science Primary 6 Energy

A ball is dropped from a height and bounces several times before coming to a stop. Which statement about the energy of the ball is TRUE?

A Potential energy is constant throughout the motion.
B Kinetic energy is highest at the peak of the bounce.
C The total energy of the ball decreases with each bounce.
D The total energy in the system remains constant.
Show Worked Solution

Worked Solution

Step 1: According to the Law of Conservation of Energy, energy cannot be created or destroyed. Step 2: While the ball loses height and speed, the energy is converted into heat and sound in the surroundings. Step 3: Therefore, the total energy in the entire system remains constant.

Correct answer: The total energy in the system remains constant.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free