EASY
8th Jammu and Kashmir Board
IMPORTANT
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How is rolling friction caused?

Important Questions on Friction

EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>Test yourself>Q 5
Under what conditions the rolling friction increases?
EASY
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 1
State one way of increasing the friction between two surfaces?
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 2
Name four ways by which friction can be reduced between two surfaces in contact?
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 3
State two advantages of friction.
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 4
State two disadvantages of friction.
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 5
Why is friction called a necessary evil?
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 6
What is a lubricant?
MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS 8>Chapter 14 - Friction>TEST YOURSELF>Q 6
How does a lubricant reduce friction?