All quizzes

Guest practice

By Chapter Ch 5 + Chapter 6: Work and Energy

Questions
61
Answered
0
Time left
--:--
Guest mode: this attempt shows an instant score but is not saved. Sign up or log in before playing to store results.
Quiz progress 0% complete
1

What happens to the shape of a body when a force is applied?

2

What is deformation?

3

Which force can change the size of a body?

4

Elasticity is the property of a material to:

5

Which material shows elasticity?

6

Hooke’s Law is valid up to:

7

According to Hooke’s Law, force is proportional to:

8

What is the spring constant?

9

The unit of spring constant is:

10

A stiffer spring has:

11

In a load-extension graph, the straight line shows:

12

The limit of proportionality is the point where:

13

Beyond elastic limit, a material:

14

What is pressure?

15

The SI unit of pressure is:

16

Pressure increases when:

17

Why do sharp knives cut better?

18

Atmospheric pressure is due to:

19

Atmospheric pressure decreases with:

20

Why is atmospheric pressure lower on mountains?

21

Which instrument measures atmospheric pressure?

22

The working liquid in a mercury barometer is:

23

Standard atmospheric pressure is equal to:

24

A manometer is used to measure:

25

Liquid pressure depends on:

26

Liquid pressure increases with:

27

Which liquid produces more pressure at same depth?

28

Pascal’s Law states that pressure applied to a confined liquid:

29

Hydraulic machines work on:

30

Which is an application of Pascal’s Law?

31

Why do camels have wide feet?

32

Pressure at the bottom of a lake is:

33

Which factor does not affect liquid pressure?

34

What happens to pressure if force doubles and area halves?

35

What is meant by work done in physics?

36

Which formula represents work done?

37

If force is applied but no displacement occurs, the work done is:

38

The SI unit of work is:

39

Energy is defined as:

40

Which of the following is a form of energy?

41

Energy possessed by a moving object is called:

42

Kinetic energy depends on:

43

Which object has maximum kinetic energy?

44

Energy stored due to height is called:

45

Gravitational potential energy depends on:

46

Which unit is used for energy?

47

When a body falls freely, its potential energy is converted into:

48

Which law states that energy cannot be created or destroyed?

49

According to conservation of energy, total energy remains:

50

A machine that works without energy loss is called:

51

Perpetual motion machines are impossible because they violate:

52

Which of the following is a renewable energy source?

53

Which energy source is non-renewable?

54

Energy obtained from flowing water is called:

55

Which energy source causes air pollution?

56

Power is defined as:

57

The SI unit of power is:

58

If more work is done in less time, power will be:

59

Efficiency of a machine is always:

60

Efficiency is the ratio of:

61

Energy losses mainly occur due to:

Exit quiz