Standard Science Primary 6 Interactions

Siti released a toy car from the top of a ramp. She noticed that the car travelled further on Surface X than on Surface Y. Which of the following is the most likely explanation?

A There is more frictional force between the car and Surface X.
B Surface X is rougher than Surface Y.
C There is less frictional force between the car and Surface X.
D The car has more mass on Surface X.
Show Worked Solution

Worked Solution

Step 1: Identify the observation: Car travels further on Surface X. Step [2-9]: Link distance to friction: Further distance means less resistance to motion. Step [2-9]: Conclusion: Surface X has less frictional force acting on the car.

Correct answer: There is less frictional force between the car and Surface X.

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