Standard Science Primary 6 Energy

A ball is dropped from Position A and bounces to Position B. Why is Position B lower than Position A?

A Gravity is stronger at Position B.
B Some energy is converted to heat and sound during the bounce.
C The ball loses mass when it hits the ground.
D Air resistance only acts at Position A.
Show Worked Solution

Worked Solution

Step 1: Energy cannot be created or destroyed, but it can be converted. Step 2: When the ball hits the ground, some kinetic energy is converted into sound and heat. Step 3: Therefore, the ball has less energy to return to the original height.

Correct answer: Some energy is converted to heat and sound during the bounce.

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

Start Free Trial — 7 Days Free