Physics-Work and Machines (NSTSE (National Science Talent Search Exam- Unified Council) Class 6): Questions 1 - 7 of 58

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Question number: 1

» Physics » Work and Machines

MCQ▾

Question

The finger and thumb rings in a scissor are:

Choices

Choice (4) Response

a.

3rd order lever

b.

1st order lever

c.

2nd order lever

d.

All of the above

Question number: 2

» Physics » Work and Machines

MCQ▾

Question

Which of the following is used to changes the direction of force and reduces the effort?

Choices

Choice (4) Response

a.

Knife

b.

Pulley

c.

Lever

d.

Wheel-and-axle

Question number: 3

» Physics » Work and Machines

MCQ▾

Question

Which of the following are examples of 1st class and 2nd class lever examples respectively?

Choices

Choice (4) Response

a.

Plier and Nutcracker

b.

Fishing and chopsticks

c.

Scissor and Staple

d.

All of the above

Question number: 4

» Physics » Work and Machines

MCQ▾

Question

In the second-class lever, ________will be in the middle.

Choices

Choice (4) Response

a.

Effort

b.

Fulcrum

c.

Load

d.

All of the above

Question number: 5

» Physics » Work and Machines

MCQ▾

Question

In the third-class lever, ________will be in the middle.

Choices

Choice (4) Response

a.

Load

b.

Fulcrum

c.

Effort

d.

Question does not provide sufficient data or is vague

Question number: 6

» Physics » Work and Machines

MCQ▾

Question

In case of class I lever, which factor is affected to gain extra power with less effort?

Choices

Choice (4) Response

a.

Position of the fulcrum

b.

Effort distance

c.

Both a. and b. are correct

d.

None of the above

Question number: 7

» Physics » Work and Machines

MCQ▾

Question

If the output work done of a frictionless pulley is , then what is the input work done required for it?

Choices

Choice (4) Response

a.

b.

Cannot calculated

c.

d.

f Page
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