MEDIUM
8th CBSE
IMPORTANT
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The force that requires physical contact between two bodies to act on them is called a  force. (contact/non-contact)

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Important Questions on Force and Friction

MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 2
When a weightlifter lifts a weight he uses _____force. (electrostatic/muscular)
EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 3

Like poles of a magnet _____ each other.

HARD
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 4
_____ force is always a force of attraction. (Gravitational/Magnetic)
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 1
The force that opposes the motion of a body over a surface is called _____.(muscular force/friction)
EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 2
Rolling friction is _____ (greater/lesser) than sliding friction.
EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 3
The _____ (irregularities/regularities) on surfaces is the cause of friction between them.
EASY
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 4
 Use of lubricants _____ (increases/decreases) friction.
MEDIUM
8th CBSE
IMPORTANT
Science Now 8>Chapter 10 - Force and Friction>Revise and recall>Q 5
The streamlined shape of a car _____ drags due to air. (reduces/enhances)