CBSE Class 9 Science How Forces Affect Motion (Class 9 NCERT New) Quiz 1

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CBSE › Class 9 › Science › How Forces Affect Motion (Class 9 NCERT New)

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1. What is a force?

A a) A colour B b) A push or pull C c) A sound D d) A machine

2. Which force acts opposite to motion?

A a) Magnetic force B b) Frictional force C c) Muscular force D d) Gravitational force

3. According to Newton’s First Law, an object at rest remains at rest unless acted upon by a __________.

A a) balanced force B b) net force C c) magnetic force D d) weak force

4. The SI unit of force is __________.

A a) Joule B b) Newton C c) Watt D d) Pascal

5. Which law explains action and reaction forces?

A a) Newton’s First Law B b) Newton’s Second Law C c) Newton’s Third Law D d) Law of Gravitation

6. What happens when you kick a football?

A a) It changes colour B b) It changes shape only C c) It moves D d) Nothing happens

7. Which force pulls objects towards the Earth?

A a) Frictional force B b) Electrostatic force C c) Gravitational force D d) Magnetic force

8. Which of the following helps us walk without slipping?

A a) Gravity B b) Friction C c) Magnetism D d) Electricity

9. When a canoeist pushes water backwards, the canoe moves __________.

A a) backward B b) upward C c) forward D d) downward

10. Grooves on shoe soles increase __________.

A a) speed B b) friction C c) gravity D d) heat

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