Live Education Quiz

1

What is meant by work done in physics?

A Force applied without movement B Movement without force C Force causing displacement D Energy stored in an object

2

Which formula represents work done?

A Work = Force / Distance B Work = Force × Distance C Work = Mass × Acceleration D Work = Power × Time

3

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

A Maximum B Minimum C Zero D Negative

4

The SI unit of work is:

A Watt B Newton C Joule D Pascal

5

Energy is defined as:

A Force applied on an object B Ability to do work C Speed of an object D Mass of an object

6

Which of the following is a form of energy?

A Force B Mass C Heat D Distance

7

Energy possessed by a moving object is called:

A Potential energy B Chemical energy C Kinetic energy D Heat energy

8

Kinetic energy depends on:

A Mass only B Velocity only C Mass and velocity D Height only

9

Which object has maximum kinetic energy?

A A stationary car B A slowly moving bicycle C A fast-moving truck D A parked bus

10

Energy stored due to height is called:

A Kinetic energy B Thermal energy C Gravitational potential energy D Electrical energy

11

Gravitational potential energy depends on:

A Speed B Height C Time D Temperature

12

Which unit is used for energy?

A Newton B Watt C Joule D Volt

13

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

A Chemical energy B Heat energy C Kinetic energy D Sound energy

14

Which law states that energy cannot be created or destroyed?

A Newton’s first law B Law of inertia C Law of conservation of energy D Ohm’s law

15

According to conservation of energy, total energy remains:

A Increasing B Decreasing C Constant D Zero

16

A machine that works without energy loss is called:

A Simple machine B Ideal machine C Complex machine D Heat engine

17

Perpetual motion machines are impossible because they violate:

A Law of motion B Law of inertia C Law of conservation of energy D Law of gravitation

18

Which of the following is a renewable energy source?

A Coal B Petroleum C Solar energy D Natural gas

19

Which energy source is non-renewable?

A Wind B Hydel C Coal D Solar

20

Energy obtained from flowing water is called:

A Thermal energy B Hydel energy C Solar energy D Nuclear energy

21

Which energy source causes air pollution?

A Wind B Solar C Fossil fuels D Hydel

22

Power is defined as:

A Work done per unit time B Energy stored C Force applied D Distance covered

23

The SI unit of power is:

A Joule B Newton C Watt D Ampere

24

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

A Less B Zero C More D Negative

25

Efficiency of a machine is always:

A 100% B Less than 100% C Greater than 100% D Zero

26

Efficiency is the ratio of:

A Output energy to input energy B Input energy to output energy C Force to distance D Mass to velocity

27

Energy losses mainly occur due to:

A Sound and heat B Light only C Mass change D Gravity

28

What is density?

A Mass multiplied by volume B Volume divided by mass C Mass per unit volume D Weight per unit volume

29

Which formula represents density?

A Density = Volume / Mass B Density = Mass × Volume C Density = Mass / Volume D Density = Weight / Volume

30

What is the SI unit of density?

A kg B m³ C kg/m³ D g/cm³

31

Which quantity is needed to calculate density?

A Force B Pressure C Mass and volume D Temperature and mass

32

Which instrument is commonly used to measure mass?

A Thermometer B Measuring cylinder C Balance D Stopwatch

33

How is the volume of an irregular solid measured?

A Using ruler B Using measuring tape C By water displacement method D By thermometer

34

Which apparatus is used to measure volume of liquids?

A Balance B Thermometer C Measuring cylinder D Spring balance

35

Density of a substance depends on:

A Its shape B Its size C Its mass and volume D Its color

36

Which state of matter has a fixed shape?

A Liquid B Gas C Solid D Plasma

37

Which state of matter has no fixed volume?

A Solid B Liquid C Gas D Ice

38

Which state of matter has particles very close together?

A Gas B Liquid C Solid D Plasma

39

Which state of matter has the weakest intermolecular forces?

A Solid B Liquid C Gas D Plasma

40

What is plasma?

A Cold gas B Liquid with ions C Ionized gas D Heated solid

41

Which is an example of plasma?

A Ice B Steam C Sun D Water

42

Particle model of matter explains:

A Only solids B Only liquids C Structure and behavior of matter D Only gases

43

According to particle model, particles of matter are:

A Stationary B Continuously moving C Invisible D Fixed in place

44

What happens to particle motion when temperature increases?

A It stops B It decreases C It increases D It remains same

45

Temperature is a measure of:

A Mass B Density C Average kinetic energy of particles D Volume

46

Which instrument is used to measure temperature?

A Barometer B Thermometer C Hygrometer D Manometer

47

Which scale is commonly used in laboratories?

A Kelvin B Celsius C Fahrenheit D Rankine

48

Lower fixed point of a Celsius thermometer is:

A 0°C B 100°C C 32°C D 273°C

49

Upper fixed point of a Celsius thermometer is:

A 0°C B 50°C C 100°C D 212°C

50

Calibration of thermometer means:

A Cleaning the thermometer B Marking temperature scale C Filling liquid D Measuring pressure

51

Which liquid is commonly used in a liquid-in-glass thermometer?

A Water B Alcohol C Mercury D Oil

52

Why is mercury suitable for thermometers?

A It is colorful B It sticks to glass C It expands uniformly D It freezes easily

53

Sensitivity of thermometer depends on:

A Length of stem B Thickness of bulb C Volume of bulb and capillary D Color of liquid

54

Range of thermometer means:

A Accuracy B Maximum and minimum measurable temperature C Speed of response D Sensitivity

55

Linearity of thermometer means:

A Equal divisions represent equal temperature change B Fast response C Wide range D High sensitivity

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