Standard Science Primary 6 Interactions

Siti observed that a wooden block stopped faster on Surface X than on Surface Y when pushed with the same force. Which of the following is most likely true?

A Surface X exerts more frictional force than Surface Y.
B Surface Y is rougher than Surface X.
C There is no friction acting on Surface Y.
D Surface X is smoother than Surface Y.
Show Worked Solution

Worked Solution

Step 1: Observation: Block stops faster on X. Step [2-9]: Faster stopping indicates a greater opposing force. Step [2-9]: Friction is the force opposing motion; thus, X has more friction.

Correct answer: Surface X exerts more frictional force than Surface Y.

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