Physics MCQ 002
1.
When a particle in motion is acted upon by a force in a direction perpendicular
to the direction of motion, the path followed by the particle will be
(A) a straight line
(B) an
ellipse
(C) a
circle
(D) a
parabola
2.
When a body is taken to the poles from the equator, its weight becomes
(A) greater
(B) less
(C) the
same
3.
When a body is projected upwards
(A) the time for the upward journey and downward journey are the same
(B) the
upward journey takes more time
(C) the
downward journey takes more time
(D)
Cann’t be said
4.
Frictional force acts in
(A) the same direction as the motion
(B) the
opposite direction of the motion
(C) all
the directions
(D)
upward direction
5.
The force that keeps a body in a circular motion is called
(A) the centripetal force
(B) the
centrifugal force
(C) the
frictional force
(D) All
the above
6.
The earth satellite Aryabhatta was put in orbit by India on
(A) October 20, 1978
(B)
November 14, 1978
(C)
January 26, 1979
(D) April
19, 1975
7.
The minimum velocity required by a satellite to escape earth’s gravitational
pull is
(A) 18 km/s
(B) 11.2
km /s
(C) 21
km/s
(D) 35
km/s
8.
When a satellite is in a geostationary orbit the force keeping it in orbit is
(A) zero
(B) the
centrifugal force
(C)
reaction due to steady burning of fuel
(D) the
gravitational pull on the body by the earth ie the weight of the body which
provides the centripetal force
9.
The period of a geostationary (synchronous) satellite orbiting the earth over
the equator is
(A) 16 hours
(B) 12
hours
(C) 20
hours
(D) 24
hours
10.
The escape velocity of a satellite projected from the surface of the earth is
independent of
(A) the mass of earth
(B) the
mass of the satellite
(C) the
radius of the earth
(D)
gravitation of the earth
Answers
1. D
2. A
3. A
4. B
5. A
6. D
7. B
8. D
9. D
10. B
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