Question

State True or False for the following statements.
1.
When a body slides over smooth and wet surfaces,
the amount of interlocking of irregularities, of the two
surfaces in contact, increases.
2.
If a car moves eastwards, the force of friction acts
southwards.
3.
Friction depends on how hard the two surfaces press
against each other.
5. The sole of shoes and the tyres of the vehicles are
'treaded' to decrease the effects of friction.
6.
Lubricants can be liquids, semi-liquids or solids.
Friction can be increased by using ball bearings
between the moving parts of machines.​

Answer 1

Answer:

1)True

2)False

3)True

5)False

6)True

7) False

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Answer 2

Answer:

1. True

2. False

3. True

4. False

5. True

6. False

7. False