Question

Q.4. True or false. [1x5=5]

i. Friction helps us walk. [ ]

ii. Friction wears down machine parts. [ ]

iii. Friction helps a ship move through water. [ ]

iv. Friction produces heat. [ ]

v. Friction is a kind of energy.​

Answer 1

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