Physics MCQs for Class 9 with Answers Chapter 4

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Physics MCQs for Class 9 with Answers


The mathematical form of law of gravitation is:
F = GMe m/Re2
F = Gm1m2/r2
F = GMem1/Re2r2
None

Moon is our satellite:
Artificial
Permanent
Natural
Communication

Near the surface of Earth, the gravitational field strength is
10 Nkg-1
Zero
100 Nkg-1
1000 Nkg-1

The gravitational field exist _________ the earth.
Upward
All aorund
Downward
One direction

Value of g increases with the
Increases in mass of the body
Increase in altitude
Decreases in altitude
None of the above

Mass of earth is approximately _________
3.7 x 1024 kg
25.94 kg
6.0 x 1022kg
6 x 1024kg

The value of g is maximum at:
Mountains
Maximum height
Surface of earth
At 2R

Mass of earth is Me is :
Me = 6× 1024 kg
6× 1024 kg
7× 1024 kg
6× 1024 Mg

Near the earth surface the gravitational field strength is:
1 N kg-1
10 N kg-1
100 N kg-1
101 N kg-1

The value of ‘g’ is greater at:
Moon
Hills
Sea leavel
Desert

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