Question

Fill in the blanks.
1. The______
of two surfaces with each other causes friction.
2. Friction is_______
on rough surfaces than on smooth surfaces.
3. Polishing a rough surface________
friction
4. Grooves are made on the tyres of vehicles to ______ friction.
5. A bicycle comes to rest when we stop pedalling due to
6. The friction offered by a fluid to an object moving through it is called_______
7. Rolling friction is _____
than sliding friction.
8. Friction always opposes
_______​

Answer 1

Answer:

1. The opposite direction.

2. occurs .

3. reduce.

4.reduce.

5. friction

6. different directions

Answer 2

Answer:

1.Opposite Direction

2.more

3.reduce

4.increase

5.external force