Frictional and Normal Force

Q.

Differentiate between contact and non-contact forces

Q. The force of _______ acts in the opposite direction of motion of an object.

1. gravity
2. friction
3. magnet
4. spring

Q.

When two objects rub against each other which force is acting on both the objects?

1. Magnetic

2. Friction

3. Gravitation

4. Non-contact

Q.

Fill in the blanks with missing words:

The force of friction always acts in a direction ________ to that in which motion is desired.

Q.

Friction is a type of ____ force.

1. Contact

2. Non-contact

3. Nuclear

4. Spring

Q. Rubbing hands together is an example of:

1. Gravity
2. Friction
3. Magnetism
4. Work

Q.

We are able to walk on the ground due to the force of ____.

1. friction

2. spring

3. magnet

4. gravity

Q. A football kicked by a girl stops after moving for some distance. This is due to:

1. Gravity
2. Friction
3. Magnetism
4. Normal force

Q.

Why rubber ball is more bouncy the plastic ball?

Q.

We move faster on water slides as there is less ____.

1. gravity

2. friction

3. mass

4. weight

Q.

A ball is kept on an inclined plane. The ball is not moving due to:

1. gravity

2. friction

3. speed

4. magnets

Q.

When two objects slide against each other, the force that works against it is ____.

1. friction

2. magnetic force

3. normal force

4. spring force

Q.

People slide faster on ice rinks due to:

1. More friction

2. more gravity

3. Less friction

4. Wind

Q. It is harder for the boy $B$ to get down the hill as compared to boy $A$. Identify the force responsible for it.

1. Gravitational force
2. Normal force
3. Frictional force
4. Spring force

Q.

Mechanical force is a force acting at a distance.

1. True
2. False

Q. What should be your immediate action when you notice a slippery floor?

1. Avoid walking in that area.
2. Wear shoes to walk over the slippery region.
3. Clean the area and use a mat to dry it out.
4. Wear heels to walk over the slippery region.

Q.

How do we get a blister

Q.

Friction reduces when there is water on the surface.

1. True

2. False

Q.

A ball is kept on an inclined plane. The ball is not moving due to:

1. speed

2. gravity

3. friction

4. magnets

Q.

Frictional is a type of ______ force.

1. contact

2. non-contact

3. gravitational
4. magnetic

Q.

If a moving object comes to a rest, it means some force is acting on it.

1. True

2. False

Q.

A moving ball on the ground comes to a stop after some time because of ___.

1. speed

2. friction

3. motion

4. magnetism

Q.

Walking on the floor would be ___ without friction.

1. possible

2. easy

3. very simple

4. impossible

Q.

We don't go through the ground we stand on it because of this force. Name this force.

1. Wind Force

2. Electric Force

3. Normal Force

4. Magnetic Force

Q. Why electromagnetic force being strong and also has infinite distance to be applied but if the distance increases then effect of force should decrease so how it can have a strong effect on the object being placed at long distances?

Q. if a block is kept over another wooden block and the block kept down is slidedover any surface then the box kept over it also slides along it. does friction here helps to move the box kept above the bigger one?