The weight of a body on the moon is one - sixth of its weight on the earth.How will the mass of the body vary ?
becomes 1/6 th
remains the same
becomes 6 times
becomes 1/8 th
The earth's gravitational force causes an acceleration of 5m/s2 in a 1 kg mass somewhere in space.How much will the acceleration of a 3kg mass be at the same place?
15 m/s2
10 m/s2
5 m/s2
3 m/s2
S.I unit of pressure is
pascal
torr
tesla
bar
S.I unit of weight is:
kg
N
N/kg
N/m
If the masses of both the object are doubled, the gravitational force of attraction is
Doubled
Halved
Becomes 4times
Becomes (1/4)th
Two protons are kept at a separation of 1 femtometre (1 femtometre = 10-15 m ).The mass of a proton is 1.67 x 10-27 kg.The gravitational force between them is :
1.86 x 10-34 N
5.86 X 10-34 N
2.8 X 10-34 N
4.86 X 10-34 N
Who gave three laws of planetary motion?
Newton
Kepler
Einstein
Galileo
According to Kepler's Laws of Planetary Motion :
r2 α T3
r α T2
r3 α T2
r3 α 1/ T2
If m1 and m2 are the masses of two bodies and distance between them is reduced to 1/4 then what will be the gravitational force___________
16 times
12 times
4 times
10 times
The earth attracts a body of mass 2kg kept on its surface with a force of
9.8 N
19.6 N
6.67 x 10-11N
1/9.8 N
