Question

State whether the statements are True (T) or False (F):
1. Oil and grease are commonly used as lubricants.
2. Ball bearings are used to reduce friction.
3. Rough surfaces offer less friction.
4. Friction can occur only between two solid surfaces.
5. Tyres have treads to increase friction.
6. Liquids exerts greater friction on a solid than other solids.​

Answer 1

Answer:

1. true
2. true
3. false
4. false
5. true
6. false

Answer 2

Answer:

True

True

False

False

True

False