Physics MCQs for Class 9 with Answers Chapter 4

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Physics MCQs for Class 9 with Answers


If the distance is doubled between two masses. The gravitational force will decrease:
4 times
2 times
One forth
One third

The value of gravitational constant is SI unit is
0.673 x 10-10
6.673 x 10-11
4.32 x 10-9
5.32 x 10-11

The height of geostationary satellites with respect to Earth is
36,300 km
40,300 km
30,300 km
42,300 km

GPS consists of __________ earth satellites.
30
2
7
24

The radius R of Earth is
6.4 x 106 m
6.4 x 108 m
6.4 x 1010 m
6.4 x 1012 m

Value of ‘g’ on surface of moon is:
1.62 ms-2
3.7 ms-2
9.2 ms-2
10 ms-2

The value of gravitational constant is, G is:
6.67× 10-10 Nm2/Kg2
6.67× 10-11 Nm2/Kg2
6.67× 10-11
None

Moon is ____ satellite.
Natural
Communications
Artificial
Geostationary

The orbital speed of a low orbit satellite is:
Zero
8 ms-1
800 ms-1
8000 ms-1

The value of G is _________ every where:
Same
Varying
Changing
1.62

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