Page 254 - Science Course 3 (Book 1)
P. 254
Mo7-L2: Key Concept Check
Direction: Answer each question or respond to each statement on the lines provided.
1. What happens to a bicycle’s mechanical energy when you apply the brakes and stop?
2. Compare a bicycle’s total energy when the rider is coasting, applying brakes, and stopped.
3. Which force resists the sliding of two surfaces that are touching?
4. When you ride a bicycle, when is friction helpful and when is it not helpful? Explain.
5. How can friction between a bicycle’s parts be reduced?
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