NSO Level 1- Science Olympiad (SOF) Class 8: Questions 751 - 755 of 1175

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Question 751

Question

MCQ▾

Pick out the examples where force is used to push the object.

Choices

Choice (4)Response

a.

Kicking a football

b.

Moving a cart

c.

Opening a door from inside the room

d.

Drawing water from a well

Question 752

Question

MCQ▾

It is easy to cut vegetables using a sharp knife than a blunt one. The reason behind this statement is

1) The cutting edge of a sharp knife has less area than the blunt knife

2) The cutting edge of a blunt knife has less area than the sharp knife

3) A sharp knife applies more pressure on the vegetables than the blunt one

Choices

Choice (4)Response

a.

1 and 3

b.

2 and 3

c.

None of the above

d.

Question does not provide sufficient data or is vague

Question 753

Question

MCQ▾

When a ball is thrown upwards, it hits the roof and bounces back. Here the force required to change the direction is exerted by

Choices

Choice (4)Response

a.

Muscular force

b.

Frictional force

c.

Gravitational force

d.

Contact force

Question 754

Question

MCQ▾

A boy is crushing a disposable bottle. Here the effect of the force is

Choices

Choice (4)Response

a.

Change in shape

b.

Change in state

c.

Change in position

d.

All of the above

Question 755

Question

MCQ▾

Force may start motion in objects. Which of the following is an example of this statement?

Choices

Choice (4)Response

a.

Kicking a moving ball

b.

Kicking a football

c.

Catching a cricket ball

d.

Hitting with hammer on an aluminium vessel

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