Standard Science Primary 6 Interactions

Siti pushed a wooden block across four different surfaces with the same amount of force. The distance moved by the block was recorded. On which surface was the frictional force the GREATEST?

A Surface with distance 30 cm
B Surface with distance 45 cm
C Surface with distance 15 cm
D Surface with distance 10 cm
Show Worked Solution

Worked Solution

Step 1: Frictional force opposes motion. Step 2: Greater friction results in a shorter distance moved before the block stops. Step 3: Comparing the distances, 10 cm is the shortest distance. Step 4: Therefore, the surface where the block moved 10 cm has the greatest friction.

Correct answer: Surface with distance 10 cm

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