# Friction [NSO Level 1- Science Olympiad (SOF) Class 8]: Questions 1 - 5 of 65

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## Question 1

Friction

### Question

MCQ▾

In the first figure a boy is trying to move a cupboard and in the second he is moving it ahead. He had to push harder in the first case than the second. The reason is

### Choices

Choice (4)Response

a.

Static friction and sliding friction are equal in measure

b.

Static friction is greater than sliding friction

c.

Sliding friction is greater than static friction

d.

Question does not provide sufficient data or is vague

## Question 2

Friction

### Question

MCQ▾

A mechanic puts grease on the moving parts of your bicycle while servicing in order to

### Choices

Choice (4)Response

a.

Enable smooth running of the bicycle

b.

Reduce friction between the moving parts

c.

Increase friction between the moving parts

d.

Both a. and b. are correct

## Question 3

Friction

### Question

MCQ▾

The frictional force applied by fluids is called

### Choices

Choice (4)Response

a.

Sliding friction

b.

Contact friction

c.

Rolling friction

d.

Drag

## Question 4

Friction

### Question

MCQ▾

Friction is an example of a

### Choices

Choice (4)Response

a.

Contact force

b.

Magnetic force

c.

Muscular force

d.

Noncontact force

## Question 5

Friction

### Question

MCQ▾

You may find it difficult to write on a plane glass surface. The reason is

### Choices

Choice (4)Response

a.

Friction is too less in smooth surface

b.

The surface of glass is very smooth

c.

Both a. and b. are correct

d.

None of the above

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