Question

Fill in the blanks:

1. The force of friction between the……………..and the wheels slows down the

wheels.

2. A carpenter uses sandpaper to ………………. the surface of wood.

3. Friction causes ……………..in all machines with moving parts.

4. Rats and some other animals keep ………………. at things to prevent their teeth

from becoming too long.​

Answer 1

Answer:

1. surface

2. clear

3. movability

4.distance

Answer 2

Answer:

1. The force of friction between the two and the wheels slows down the speed of wheels.

2. A carpenter uses sandpaper to clean the surface of wood

3. Friction causes heat in all machines with moving parts.

4. Rats and some other animals keep open at things to prevent their teeth