Advanced Science Primary 6 Interactions

Study the experiment setup below. If the surface texture of the ramp is changed from glass to sandpaper, what will happen to the block?

A It will slide down slower.
B It will slide down faster.
C The normal force on it will decrease.
D The gravitational force on it will increase.
Show Worked Solution

Worked Solution

Step 1: Identify the change (Glass to Sandpaper). Step 2: Sandpaper has a rougher surface, which increases frictional force. Step 3: Higher friction opposes motion more strongly, making the block slide slower.

Correct answer: It will slide down slower.

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