reducing and increasing friction

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Page 1: Reducing and Increasing Friction
Page 2: Reducing and Increasing Friction

Situation A

Page 3: Reducing and Increasing Friction

Situation B

Page 4: Reducing and Increasing Friction

Observation: It is easier to pull the load in Situation B than

the load in Situation A.

Inference: Because there is less friction in Situation A than

Situation B.

Situation A Situation B

Page 5: Reducing and Increasing Friction
Page 6: Reducing and Increasing Friction

oil water

wax grease

Page 7: Reducing and Increasing Friction
Page 8: Reducing and Increasing Friction
Page 9: Reducing and Increasing Friction
Page 10: Reducing and Increasing Friction
Page 11: Reducing and Increasing Friction
Page 12: Reducing and Increasing Friction
Page 13: Reducing and Increasing Friction

Making patterns on thesoles of the shoes.

Making patterns on the surface of the

tyre.

Page 14: Reducing and Increasing Friction

Using rough surfaces……

Carpet

anti-slip mat