MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why do you think rolling friction is less than sliding friction?

Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q 5
Friction is a necessary evil. Explain.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>BE A SCIENTIST
A businessman went to see a Formula 1 car race. It was raining, and several cars skidded on the road. There were a couple of major accidents and some drivers sustained serious injuries. He decided to do something about it. He designed a racing car tyre with increased friction that would not slip on wet roads. He advertised it as: "Now a racing car tyre that keeps you safe." However, nobody bought the tyres. Where do you think the businessman went wrong?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>VALUES>Q 1
Akash noticed that someone had carelessly thrown a banana peel on the footpath. He thought," If someone steps on the banana peel, he or she is likely to slip and fall." So he picked it up and threw it in the dustbin. Is Akash right in thinking that people can slip on a banana peel? Why?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q A
It is difficult to walk on ice because -
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q A
Which of these is true about friction?