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Everyday Science
GPS consists of how many earth satellites?
23 earth satellites
24 earth satellites
25 earth satellites
26 earth satellites
Author:
rikazzz
Comment
Gravitation
Earth’s gravitational force of attraction vanishes at what distance?
6400 km
infinity
6900 km
10000 km
Gravity can never become zero except maybe at infinity. As we move away from the surface of the Earth the gravitational force becomes weaker but it will never become zero.
Author:
rikazzz
Comment
Gravitation
The height of an object or place above the sea level is known as
magnitude
volume
altitude
area
Author:
rikazzz
Comment
Gravitation
As we go farther away from the Earth, the gravitational force becomes
constant
stronger
weaker
positive
Author:
rikazzz
Comment
Gravitation
If the mass of earth is 6.0 * 10
24
 and its radius is 6400 km then value of g at an altitude of 1000 km is
7 ms
-1
7 ms
-2
7.3 ms
-1
7.3 ms
-2
Author:
rikazzz
Comment
Gravitation
The gravitational pull of the Earth acting on the body whether the body is in contact with the Earth or not, such force is known as
force of inertia
force of limiting friction
force of inertia
field force
Author:
rikazzz
Comment
Gravitation
Value of g increases with the
decrease in altitude
increase in altitude
increase in body mass
decrease in body mass
Author:
rikazzz
Comment
Everyday Science
Moon is a
natural satellite
artificial satellite
not a satellite
none of above
Author:
rikazzz
Comment
Everyday Science
The force with which everybody attracts every other body is called force of
friction
retarding
gravitation
acceleration
Author:
rikazzz
Comment
Everyday Science
If an apple is taken to the mountain top then its weight is
decreased
increased
constant
infinite
Author:
rikazzz
Comment
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