Gravitational Force

Q. Differentiate between contact and non contact force?

Q. Gravity on the Moon is ___ that of the Earth.

1. weaker than
2. double than
3. triple than
4. equal to

Q. Write the diference between force of friction and gravitational force?

Q.

Fruits detached from a tree fall down due to the force of gravity. We know that a force arises due to the interaction between two objects. Name the objects interacting in this case.

Q. Which force acts between the Earth, the moon and the sun?

1. Electrostatic force
2. Magnetic force
3. Mechanical force
4. Gravitational force

Q.

When we throw a ball upwards, it will eventually come back to us because of ___ force.

Q. The gravitational force acting on an object is known as its

1. volume
2. speed
3. mass
4. weight

Q.

The weight of a body is because of:

1. Muscular force

2. Magnetic force

3. Gravitational force

4. Electrostatic force

Q.

The force with which the earth attracts an object.

Q. Calculate the amount of force exerted by gravity on a person of mass $50kg$.

1. $500N$
2. $50$ N
3. $5N$
4. $0.5N$

Q.

What is force? What are its absolute and gravitational units ? How are these related to each other?

Q.

Why does a man weigh less on the moon than on Earth?

1. Can't be said.

2. Mass of the moon is less than the Earth, therefore, the force of attraction is less.

3. Mass of the moon is more than the Earth, therefore, the force of attraction is more.

4. Mass of the moon is equal to that of the Earth.

Q. Gravitational force between two masses can be repulsive in nature.

1. True

2. False

Q. force is responsible for the weight of an object.

1. Gravitational
2. Electrostatic
3. Muscular
4. Magnetic

Q. It is due to the force of _______ that raindrops fall on the ground.

1. friction
2. charges
3. magnetism
4. gravitation

Q. The force responsible to keep the moon in orbit is called:

1. Electrostatic force
2. Muscular force
3. Frictional force
4. Gravitational force

Q. Which of the following forces holds planets in their orbits around the Sun?

1. Frictional force
2. Muscular force
3. Electrostatic force
4. Gravitational force

Q.

How many different kinds of gravity exist?

Q.

A boy while playing under a mango tree saw a mango falling on the ground. This is due to the force of:

1. friction

2. magnetic force

3. gravity

4. can't be said

Q.

If gravity did not affect the path of a horizontally thrown ball, the ball would___________________.

Q.

What do you mean by gravitational force. Give an short example to illustrate it

Q. When you drop an object from a height, it falls towards the surface of the Earth because the Earth exerts magnetic force on the object.

1. True
2. False

Q.

Why does the moon exert less force of attraction on objects?

Q. The moon revolves around the Earth because Earth exerts ______ force on the moon.

1. magnetic
2. gravitational
3. electrostatic
4. mechanical

Q.

Why does a star wobble?

Q.

Mass of an obejct can be measured using spring Balance.

1. True

2. False

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

Q.

Force of Gravitation is always attractive in nature

1. True
2. False

Q. The gravitational force is _____.

1. attractive force
2. either repulsive or attractive
3. repulsive only at a large distance
4. repulsive force

Q. Which of the following is used to measure the mass of a body?

1. Spring balance
2. Odometer
3. Speedometer
4. Thermometer