Primary 6 Science — Energy Practice | Standard

Standard Science Primary 6 Energy

A ball is released from the top of a smooth slide. At which point does the ball have the MOST kinetic energy?

A At the very bottom of the slide

B At the top of the slide

C Halfway down the slide

D When it is caught at the end

Show Worked Solution

Worked Solution

Step 1: As the ball slides down, gravitational potential energy is converted into kinetic energy. Step 2: On a smooth slide (ignoring friction), nearly all potential energy is converted by the time it reaches the bottom. Step 3: Therefore, kinetic energy is highest at the lowest point of the motion.

Correct answer: At the very bottom of the slide

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