Gravitational Force

Q. Among the following options, the weight of the body is maximum at the _______.

1. 
   centre of the Earth
2. 
   pole
3. 
   highest place on Earth
4. 
   equator

Q.

The mass of a body at the centre of the Earth is:

Q. The weight of the body is minimum at _______.

1. both equator and pole
2. the highest place on Earth
3. equator
4. pole

Q. The earth’s gravitational force acts in a direction opposite to the motion for an object moving upwards.

1. True

2. False

Q.

When an object is thrown up, the force of gravity ___.

1. is opposite to the direction of motion

2. is in the same direction as the direction of motion

3. becomes zero at the highest point

4. increases as it rises up

Q. why do weight of any object decrease when we go high on mountain

Q.

If the mass is doubled, then the weight become _______.

Q. If a rock is brought to Earth from the surface of the moon, then __

1. its mass will change.
2. its weight will change but not mass.
3. both mass and weight will change.
4. both mass and weight will remain the same.

Q. A 60 kg person, at the centre of the Earth, would weigh

1. zero
2. 30 kg
3. 120 kg
4. 60 kg

Q.

A body of mass m is taken to moon. Then

1. Its mass increases

2. Its mass decreases

3. Its weight increases

4. Its weight decreases

Q.

Choose the correct option regarding gravitational force.

1. It is the force due to which all bodies are attracted towards the centre of the Earth.

2. Any object with mass will experience a gravitational force in the presence of other objects with mass.

3. The force acting between two objects are equal in magnitude and opposite in direction.

4. All of the above.

Q. On the Moon, our weight will be ________ as compared to that on Earth.

1. more
2. less
3. equal
4. variable

Q. The mass of an object is 2.2kg . Find its weight (given 1 kg =10N)

Q.

The weight of an object is greatest at some region of the earth. What will be the colour of bears found in that region?

Q.

The value of acceleration due to gravity at poles is___ that of at the equator.

1. equal to

2. greater than

3. same as

4. less than

Q.

Which of the following can be explained by the universal law of gravitation?

1. The force that is responsible for binding us to the Earth.

2. The motion of the Moon around the Earth.

3. The motion of planets around the Sun.

4. All of the above

Q. Mukul is trying to pull a load on an inclined plane. Which of the following forces should be overcome?
A: Gravitational force
B: Electrostatic force
C: Frictional force
D: Magnetic force

1. A and B
2. A and D
3. A and C
4. Only A

Q.

What is the acceleration due to gravity?

Q.

Give any four points of differences between the mass and the weight of a body.

Q.

Differentiate between mass and weight of a body.

Q.

Define weight.

Q. For an object moving upwards form the Earth's surface, the direction of gravitational force is in _______ direction to the direction of motion.

1. opposite
2. similar
3. perpendicular
4. random

Q.

Define weight and give its SI unit.

Q.

Mention two points of difference between mass and weight.

Q. Weight of a body is measured by a

1. Physical balance
2. Beam balance
3. Density bottle
4. Spring balance

Q.

I cant understand the formula of calculating weight i.e weight =m*g.what is m and g. Why are rest and motion relative terms.

Q. Force is a type of interaction between two objects in or not in contact.

1. True
2. False

Q.

Newton's law of gravitation is applicable to:

1. Bodies on earth only

2. Bodies on planets other than earth

3. All bodies in the universe

4. Bodies in our solar system only

Q.

If mass and radius of the Earth are $6.0\times {10}^{24}$ kg and $6.4\times {10}^6$ m respectively, calculate the force exerted by the Earth on a body of mass 1 kg.

1. 9.8 and 1 respectively

2. and 9.8 respectively

3. 9.8 for both

4. 9.8 and respectively

Q.

Which of the following can explain the downward motion of water droplets during a rainfall?

1. Electrostatic

2. Magnetic

3. Gravitational

4. None of these