
Grade IX Gravitation
Authored by Agnes A
Physics
9th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A stone has a mass 40g and volume 30cm3 . Calculate the density of the stone.
1g/cm3
1.3g/cm3
1.3kg/m3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A crown weighs 33N in air and 21N in water. What is the buyont force?
21N
12N
33N
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A man displaces 750ml of water when jumped into a bath tub. What is the weight of displaced water when the density of water is 1000kg/m3
7500000N
7.5N
0.75N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A wooden box of dimension 25mX3mx1m is placed on soft sand. Which side of the box exert maximum pressure?
25X1
3X1
25X3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pick the right option:
When the ship floats on water , weight of the ship displaces equal weight of water
When the ship floats on water , weight of the ship under the water displaces equal weight of water
When the ship floats on water , weight of the ship under the water displaces lesser weight of water than the ship's weight
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Suppose gravity of earth suddenly becomes zero, then in which direction will the moon begin to move if no other celestial body affects it?
Pick the right option?
Moon will move in a straight line in the direction it was moving at that instant (tangential path)
Moon will drop down towards the earth
Moon will be attracted by the sun
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Weight of the an object at the centre of the earth is _____
infinite
R times the weight at the surface of the earth
zero
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