Effects of Force

Q. What is deformation ?

Q.

A body is pulled from opposite side with equal to 50N and 60N . What will be the resultant force .Mention its possible direction also?

Q.

How can force change the shape and state of motion of an object??

Q. If a force is applied on an object in the direction of its motion, speed of the object ___.

1. doesn't change
2. first decreases, then increases
3. increases
4. decreases

Q.

What can be the effects of force?

1. It can increase the speed of a moving body.

2. It can change the shape of an object.

3. It can decrease the speed of a moving body.

4. It can bring a moving body to rest.

1. 1 and 2 only

2. 2 and 3 only

3. 2, 3 and 4 only

4. All of the above

Q.

Force applied on a object can change its

1. Speed

2. Shape

3. Direction

4. All of these

Q.

What are the effects of force?

What are magnetic force?

Q.

How is a force caused give reasons

Q.

What happens to the springs of a sofa when we sit on it ?

Q. A force can:
1. Increase the speed of a moving body.
2. Change the shape of an object.
3. Decrease the speed of a moving body.
4. Bring a moving body to rest.

1. 1, 2, 3 and 4
2. 2 and 3 only
3. 1 and 2 only
4. 2, 3 and 4 only

Q. While pulling water from a well, we apply ______ force.

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

Q.

How does the effect of a force differ when it is applied on (a) a rigid body, (b) a non- rigid body?

Q. A force applied on a body always bring a change in its state of motion.

1. True
2. False

Q.

What is called moment in force and pressure

Q.

To write the correct and effective program we must first

Q.

What is force? When can we be sure that a net force is acting on a body? [2 MARKS]

Q. An iron nail getting attracted to a magnet is an example of which force?

1. Contact
2. Muscular
3. Frictional
4. Non-contact

Q.

Motion is imparted to objects due to the action of speed.

1. False

2. True

Q.

Which of the following are the effects of the force?

1. Force can change the mass of the body.

2. Force can increase the speed of the body.

3. Force can change the direction of motion.

4. Force can change the shape of the body.

Q.

Name two effects which, a force can have on a moving body

Q.

Define force?

Q.

When a force is applied to a body the shape of the body can change.

1. True

2. False

Q. The pressure on a body _______ with the increase in altitude from the earth’s surface.

1. decreases
2. increases
3. first decreases and then increases
4. first increases and then decreases

Q. By applying force, of a body can be changed.

1. state of motion
2. mass
3. colour

Q. To stretch a bow, the archer applies a _______ force.

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

Q. When we hammer a piece of aluminium, its changes.

1. composition
2. shape
3. mass

Q.

What is force how is it caused?

Q.

What is the effect of force:-

When a balloon is pressed from opposite sides.

Q. If we blow air from our mouth on the smoke rising up from joss stick, then the of smoke changes.

1. mass
2. colour
3. direction of motion

Q. These bricks are pulled one by one with the help of a spring balance on a glass slab. Choose the brick for which spring balance will show maximum reading.

1. 
2. 
3.