Write "MF" if more friction or “LF" if less friction is needed on the following activities or objects. Write your answers on your answer sheet. 1. walking a smooth surface
2. writing on a paper-covered surface
3. skating
4. grinding
5. sliding door
6. holding a glass of water
7. pushing a heavy cabinet
8. rotating gears of bicycle
9. pole climbing
10. setting of glass and plates on top of a table 1

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