Class 9th Physics Quizzes: Chapters 1 to 9

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Unit 1 PHYSICAL QUANTITIES AND MEASUREMENT

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PHYSICAL QUANTITIES AND MEASUREMENT

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Category: PHYSICAL QUANTITIES AND MEASUREMENT

1. Length, mass, electric current, time, intensity of light and amount of substances are examples of

a) prefixes

b) base quantities

c) derived quantities

d) quartile quantities

2 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

2. Zero error of the instrument is

a) systematic error

b) classified error

c) random error

d) human error

3 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

3. A worldwide system of measurement in which the units of base quantities were introduced is called

a) none of the above

b) international system of units

c) prefixes

d) hexadecimal system

4 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

4. 350 ms = _____________ s

a) 350

b) 3.5

c) 3500

d) 0.35

5 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

5. 980 has ____ significant numbers.

a) 2

b) 1

c) 0

d) 3

6 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

6. Ten identical steel balls each of mass 27 gm, are immersed in a measuring cylinder having 20cm3 of water. The reading of water level rises to 50cm3. What is the density of the steel?

a) 13.5 gm/cm3

b) 0.90 gm/cm3

c) 8.1 gm/cm3

d) 9.0 gm/cm3

7 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

7. A chips wrapper is 4.5cm long and 5.9 cm wide. Its area upto significant figures will be

a) 26.55 cm2

b) 28 cm2

c) 30 cm2

d) 32 cm2

8 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

8. 0.8 m = ___________ mm

a) 80

b) 8

c) 800

d) 0.08

9 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

9. If a zero line of Vernier scale coincides with zero of main scale, then zero error is

a) one

b) zero

c) negative

d) positive

10 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

10. 0.5 s = __________ ms

a) 50

b) 500

c) 5

d) 5000

11 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

11. 230 cm = __________m

a) 0.0023

b) 23.0

c) 2.3

d) 0.23

12 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

12. 1.2 kg = ________ g

a) 0.0012

b) 0.12

c) 1200

d) 120

13 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

13. 250 gm = ________ kg

a) 25

b) 2.5

c) 0.025

d) 0.25

14 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

14. 91.60 has _________ significant numbers.

a) 0

b) 2

c) 4

d) 3

15 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

15. The figure shows part of a Vernier scale, what is the reading on the Vernier scale

IMG_20260411_201249-300x196 Class 9th Physics Quizzes: Chapters 1 to 9

a) 6.55 cm

b) 7.00 cm

c) 6.50 cm

d) 7.45 cm

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Category: PHYSICAL QUANTITIES AND MEASUREMENT

16. An object of mass 100gm is immersed in water as shown in figure 1.27, what is the density of the material from which object is made?

IMG_20260411_201758-225x300 Class 9th Physics Quizzes: Chapters 1 to 9

a) 0.9 gcm-3

b) 2.5 g cm-3

c) 1.1g cm-3

d) 0.4 gmcm-3

17 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

17. 0.0086 has ___ significant numbers.

a) 1

b) 3

c) 0

d) 2

18 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

18. All accurately known digits and first doubtful digit in an expression are known as

a) significant figures

b) estimated figures

c) non-significant figures

d) crossed figures

19 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

19. 10010.100 has _______ significant numbers.

a) 3

b) 5

c) 6

d) 8

20 / 20

Category: PHYSICAL QUANTITIES AND MEASUREMENT

20. What is the reading of this micrometer in figure 1.28.

IMG_20260411_201315-300x297 Class 9th Physics Quizzes: Chapters 1 to 9

a) 5.43 mm

b) 7.30 mm

c) 8.13 mm

d) 6.13 mm

Your score is

The average score is 19%

Unit 2 KINEMATICS

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KINEMATICS

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Category: KINEMATICS

1. Scalar Quantities have ________ and suitable unit.

a) both a and b

b) magnitude

c) direction

2 / 10

Category: KINEMATICS

2. Shortest distance between two points is called __________.

a) displacement

b) distance

c) speed

3 / 10

Category: KINEMATICS

3. Vector quantities have ________ along with magnitude and unit.

a) direction

b) both a and b

c) magnitude

4 / 10

Category: KINEMATICS

4. A body is said to be in ________ if it changes its position with respect to its surroundings.

a) none of these

b) rest

c) both rest and motion

d) motion

5 / 10

Category: KINEMATICS

5. A body is said to be at _______ if it does not change its position with respect to its surroundings.

a) motion

b) none of these

c) both rest and motion

d) rest

6 / 10

Category: KINEMATICS

6. Which one is a vector quantity? __________

a) Mass

b) Weight

c) Time

7 / 10

Category: KINEMATICS

7. What is SI unit of acceleration? _____

a) m/s

b) nm

c) m/s^2

8 / 10

Category: KINEMATICS

8. Which one is a scalar quantity? ___________

a) Force

b) Velocity

c) Time

9 / 10

Category: KINEMATICS

9. Distance is a __________ quantity.

a) scalar

b) both a and b

c) vector

10 / 10

Category: KINEMATICS

10. What is a SI unit of velocity? ______

a) ms-2

b) m/s

c) Nm

Your score is

The average score is 60%

Unit 3 DYNAMICS

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DYNAMICS

1 / 10

Category: DYNAMICS

1. A man pulls a crate of mass 25 kg across leveled ground with a horizontal force of 60 N. A constant force of friction of 20 N acts on the sledge. What is the acceleration of the sledge?

a) 1.6 ms-2

b) 3.2 ms-2

c) 0.63 ms-2

d) 2.4 ms-2

2 / 10

Category: DYNAMICS

2. Newton's First law of motion is also known as law of __________.

a) force

b) inertia

c) speed

d) rest

3 / 10

Category: DYNAMICS

3. Centrifugal force is always directed ______________.

a) along the circular path

b) all sides

c) towards center

d) away from centre

4 / 10

Category: DYNAMICS

4. Weight of a body can be measured using a spring balance, it differs from place to place because of variations in ______________.

a) size of spring balance

b) acceleration

c) velocity

d) gravitational pull

5 / 10

Category: DYNAMICS

5. It is easier to push an empty shopping cart than a full one, because the filled cart has more mass than the empty one. This can be expressed by ___________.

a) F is less than m

b) F is greater than m

c) F ∝ 1/m

d) F ∝ m

6 / 10

Category: DYNAMICS

6. Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision _________________.

a) none of above is true

b) losses some momentum

c) retains more momentum

d) remains constant

7 / 10

Category: DYNAMICS

7. Quantity of motion contained in body is called _____________.

a) momentum

b) gravity

c) force

d) inertia

8 / 10

Category: DYNAMICS

8. Friction opposes motion between two bodies in contact because of ___________.

a) charges on bodies

b) roughness of surfaces

c) weight of bodies

d) none of the above

9 / 10

Category: DYNAMICS

9. Quantity of matter contained in body is called ____________.

a) mass

b) volume

c) weight

d) area

10 / 10

Category: DYNAMICS

10. Which statement is true for limiting frictional force ?

a) it is greater than sliding friction

b) all are true

c) it is greater that kinetic friction

d) it is greater than rolling friction

Your score is

The average score is 38%

Unit 4 TURNING EFFECT OF FORCES

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TURNING EFFECT OF FORCES

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Category: TURNING EFFECT OF FORCES

1. A force of 15 N makes an angle of 60° with horizontal.Its vertical component will be _________.

a) 13 N

b) 15 N

c) 10 N

d) 7 N

2 / 10

Category: TURNING EFFECT OF FORCES

2. A pair of unlike parallel forces having different lines force produce ___________.

a) a couple

b) equilibrium

c) unstable equilibrium

d) torque

3 / 10

Category: TURNING EFFECT OF FORCES

3. A body is in stable equilibrium after slight tilt if its center of gravity ______________.

a) passes over the point of contact

b) remains above point of contact

c) is at its lowest point

d) remains on one side of point of contact

4 / 10

Category: TURNING EFFECT OF FORCES

4. Stability increasing of a racing car is increased by _____________.

a) increasing its height

b) lowering its center of gravity

c) decreasing its width

d) raising its center of gravity

5 / 10

Category: TURNING EFFECT OF FORCES

5. Bunsen burner is made stable by ___________.

a) decreasing its base area

b) increasing its mass

c) increasing its length

d) increasing its base area

6 / 10

Category: TURNING EFFECT OF FORCES

6. A body is in equilibrium when it has _____________.

a) zero acceleration

b) uniform acceleration

c) uniform speed

d) both a and b

7 / 10

Category: TURNING EFFECT OF FORCES

7. A tight rope walker carries a long pole to ___________.

a) increase its weight

b) lower his center of gravity

c) keep his center of gravity in fixed position

d) raise his center of gravity

8 / 10

Category: TURNING EFFECT OF FORCES

8. A body is unstable equilibrium after slight tilt if its center of gravity ____________.

a) passes over the point of contact

b) remains above point of contact

c) remains on one side of the point of contact

d) is positioned at its bottom

9 / 10

Category: TURNING EFFECT OF FORCES

9. Head to tail rule can be used to add ___________ forces.

a) five

b) three

c) any number of

d) two

10 / 10

Category: TURNING EFFECT OF FORCES

10. A body is in neutral equilibrium when its center of gravity ___________.

a) remains at same height

b) is at highest position

c) is at its base

d) is at its lowest point

Your score is

The average score is 5%

Unit 5 FORCES AND MATTER

Physics l

FORCES AND MATTER

1 / 10

Category: FORCES AND MATTER

1. The pressure exerted by the air molecule at sea level is measured in ___________.

a) Ampere

b) Joules

c) Newtons

d) Atmosphere

2 / 10

Category: FORCES AND MATTER

2. The figure 5.13 shows a container with three spouts. The container is filled with water. Jets of water pour out of the spouts. Why does the jet of water from the bottom spout goes farthest out from the container?

IMG_20260406_233104-259x300 Class 9th Physics Quizzes: Chapters 1 to 9

a) Density of water different and different places

b) Pressure decreases with depth

c) Pressure increases with depth

d) More water available to flow out from the bottom

3 / 10

Category: FORCES AND MATTER

3. If the material recovers the original dimensions when an external force is removed, deformation is known as ___________ deformation.

a) Inelastic

b) Irreversible

c) Elastic

d) Permanent

4 / 10

Category: FORCES AND MATTER

4. If a metal block applies a force of 20 n on an area of 5 cm2 find the pressure being applied by the block on the area of _______.

a) 0.8Ncm-2

b) 4Ncm-2

c) 0.25Ncm-2

d) 100Ncm-2

5 / 10

Category: FORCES AND MATTER

5. Which of the following is not a unit of pressure?

a) Bar

b) Atmosphere

c) Newton

d) Pascal

6 / 10

Category: FORCES AND MATTER

6. If a spring stretches easily then it's a spring constant has _________.

a) Both large and small value

b) Constant value

c) Large value

d) Small value

7 / 10

Category: FORCES AND MATTER

7. Which of the following material is more elastic?

a) Steel

b) Wood

c) Rubber

d) Glass

8 / 10

Category: FORCES AND MATTER

8. The springs in brakes and clutches are used _________.

a) To absorb shocks

b) To absorb strain energy

c) To measure forces

d) To restore original position

9 / 10

Category: FORCES AND MATTER

9. What is the unit for the spring constant?

a) Nm2

b) Nm-2

c) Nm-1

d) Nm

10 / 10

Category: FORCES AND MATTER

10. The springs obey's Hooke's laws for the earlier extensions and when the spring becomes damaged it does not appear to do so; figure 5.12. Estimate from graph after addition of which weight the spring damaged.

IMG_20260406_143119-273x300 Class 9th Physics Quizzes: Chapters 1 to 9

a) 1.6 Newton

b) 1.5 Newton

c) 2.0 Newton

d) 8 Newtons

Your score is

The average score is 80%

Unit 6 GRAVITATION

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GRAVITATION

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Category: GRAVITATION

1. _______ was the first scientist who gave the concept of gravitation.

a) Newton

b) Einstein

c) Maxwell

d) Faraday

2 / 20

Category: GRAVITATION

2. __________ are used to put satellite into orbits.

a) Rocket

b) Helicopter

c) Aeroplane

d) None of these

3 / 20

Category: GRAVITATION

3. Numerical value of _________ remains constant every where.

a) W

b) g

c) F

d) G

4 / 20

Category: GRAVITATION

4. Mass of Earth is ____________.

a) 6.0 x 10^23 kg

b) 6.0 x 10^24 kg

c) 6.0 x 10^26 kg

d) 6.0 x 10^25 kg

5 / 20

Category: GRAVITATION

5. Spring balance is used to measure __________.

a) Mass

b) Weight

c) Elasticity

d) Density

6 / 20

Category: GRAVITATION

6. The motion of a falling ball towards Earth is due to the ________.

a) Both weightlessness and gravitational force

b) Weightlessness

c) Gravitational force

d) Acceleration due to gravity

7 / 20

Category: GRAVITATION

7. Newton's law of gravitation is consistent with Newton's ____________ law of motion.

a) 1st

b) 2nd

c) 3rd

d) All of them

8 / 20

Category: GRAVITATION

8. Gravitational field of Earth is directed ___________.

a) Away from Earth

b) Towards the Earth

c) Towards the Moon

d) Towards the Sun

9 / 20

Category: GRAVITATION

9. Numerical value of G is __________.

a) G = 6.763 x10^11 N m2.kg-2

b) G = 6.763 x10^-11 N m2.kg-2

c) G = 6.673 x10^11 N m2.kg-2

d) G = 6.673 x10^-11 N m2.kg-2

10 / 20

Category: GRAVITATION

10. Gravitational force is always _______________.

a) None of them

b) Repulsive

c) Attractive

d) both Repulsive and Attractive

11 / 20

Category: GRAVITATION

11. Near Earth's surface g = ______________.

a) none of these

b) 10ms-2

c) 1.6ms-1

d) both

12 / 20

Category: GRAVITATION

12. According to Newton's law of gravitation force ∝ ___________.

a) 1/r2

b) r2

c) m1.m2

d) Both m1.m2 and 1/r2

13 / 20

Category: GRAVITATION

13. The gravitational field strength on the surface of Moon is ___________.

a) 10 Nkg-1

b) 3.59 Nkg-1

c) 11.08 Nkg-1

d) 1.62Nkg-1

14 / 20

Category: GRAVITATION

14. Your weight as measured on Earth will be _______ on Moon.

a) Increased

b) None of them

c) Decreased

d) Remain same

15 / 20

Category: GRAVITATION

15. Newton's law of gravitation holds between every two objects on the _________.

a) Earth

b) Moon

c) Universe

d) Jupiter

16 / 20

Category: GRAVITATION

16. The velocity of a satellite is __________ of its mass.

a) Dependent

b) Equal

c) Independent

d) Double

17 / 20

Category: GRAVITATION

17. Gravitation force is ____________ of the medium between the objects.

a) None of them

b) Both

c) Independent

d) Dependent

18 / 20

Category: GRAVITATION

18. The critical velocity Vc = ___________.

a) g/R

b) Sq rt (gR)

c) gR

d) Sq rt (g/R)

19 / 20

Category: GRAVITATION

19. A communication satellite completes its one revolution around the Earth in ______ hours.

a) 18

b) 6

c) 24

d) 12

20 / 20

Category: GRAVITATION

20. _____________ is a natural satellite.

a) Jupiter

b) Moon

c) Mars

d) Earth

Your score is

The average score is 85%

Unit 7 PROPERTIES OF MATTER

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PROPERTIES OF MATTER

1 / 10

Category: PROPERTIES OF MATTER

1. If a gas is heated in a sealed cylinder, then __________ increases.

a) All of them

b) temperature of the gas

c) average kinetic energy of the particles

d) pressure inside the container

2 / 10

Category: PROPERTIES OF MATTER

2. An object with particles close together and vibrating describes a __________.

a) All three

b) Gas

c) Solid

d) Liquid

3 / 10

Category: PROPERTIES OF MATTER

3. In a liquid, some energetic molecules break free from the surface even when the liquid is too cold for bubbles to form. What is the name of this process?

a) convection

b) evaporation

c) condensation

d) boiling

4 / 10

Category: PROPERTIES OF MATTER

4. What happens to the molecules of a gas when the gas changes into a liquid?

a) They move apart and gain energy

b) They move apart and lose energy

c) They move closer and gain energy

d) They move closer and lose energy

5 / 10

Category: PROPERTIES OF MATTER

5. A burning candle is an example of _________ state of matter.

a) Liquid

b) Gas

c) Solid

d) All three

6 / 10

Category: PROPERTIES OF MATTER

6. A gas in a container of fixed volume is heated. What happens to the molecules of the gas?

a) They collide less frequently.

b) They move faster

c) They move further apart

d) They expand

7 / 10

Category: PROPERTIES OF MATTER

7. During which process a gas becomes a liquid _________.

a) Freezing

b) Boiling

c) Condensing

d) Melting

8 / 10

Category: PROPERTIES OF MATTER

8. A solid can ______________.

a) be easily compressed

b) have a freely moving molecules

c) take a shape of container

d) have a fixed shape

9 / 10

Category: PROPERTIES OF MATTER

9. A substance has a melting point of -17° C and a boiling point of 117° C. In which state does the substance exists at -10 °C and 110 °C?

a) Solid / Gas

b) Solid / Liquid

c) Liquid / gas

d) Liquid /Liquid

10 / 10

Category: PROPERTIES OF MATTER

10. According to kinetic molecular theory, the pressure exerted by a gas is caused by the _________.

a) bombardment of the gas molecules on the walls of the container

b) random motion of the gas molecules

c) large distances between gas molecules

d) collision between gas molecules

Your score is

The average score is 100%

Unit 8 ENERGY SOURCES AND TRANSFER OF ENERGY

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ENERGY SOURCES AND TRSNSFER OF ENERGY

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Category: ENERGY SOURCES AND TRANSFER OF ENERGY

1. The energy released during fission or fusion reaction is called ______________.

a. Nuclear energy

b. Solar energy

c. Tidal energy

d. Geothermal energy

2 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

2. If a force of 6N dsplaces an object 2m in the direction of force, then work done will be _________.

a. 12 Joules

b. 3 Joules

c. 0 Joules

d. Both 0 and 12 joules

3 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

3. Work done per unit time is called ____________.

a. Power

b. Efficiency

c. Energy

d. Force

4 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

4. The ratio of output to input is called ___________.

a. Energy

b. Work

c. Power

d. Efficiency

5 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

5. ___________ is not a renewable source of energy.

a. Wind energy

b. Coal

c. Solar energy

d. Geothermal energy

6 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

6. A body of mass 1kg is lifted through a height of 1m. The energy possessed in the body will be _________. (consider g = 10m/s2)

a. 1J

b. 1000J

c. 10J

d. 100J

7 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

7. If a machine performs 20J of work in 10secs then its power is _________.

a. 0.2watt

b. 2watt

c. 20watt

d. 200watt

8 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

8. If a body of mass 1kg is moving with velocity of 1m/sec then K.E of the body will be _________.

a. 2 Joules

b. 3 Joules

c. 0.5 Joules

d. 1 Joules

9 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

9. Which is the renewable source of energy?

a. Coal

b. Petrolium

c. Natural gas

d. Solar and wind

10 / 10

Category: ENERGY SOURCES AND TRANSFER OF ENERGY

10. Coal, gas and oil are all examples of ________________.

a. Fossil fuel energy

b. Biomass energy

c. Nuclear energy

d. Tidal energy

Your score is

The average score is 0%

Unit 9 THERMAL PROPERTIES OF MATTER

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THERMAL PROPERTIES OF MATTER

1 / 15

Category: THERMAL PROPERTIES OF MATTER

1. A fixed temperature at which a pure liquid boils is called _______.

a) boiling point

b) freezing point

c) both melting and freezing

d) melting point

2 / 15

Category: THERMAL PROPERTIES OF MATTER

2. Thermal energy transfer required to change a liquid into gas without changing its temperature is called ______________.

a) latent heat of boiling

b) latent heat of freezing

c) latent heat of vaporization

d) latent heat of melting

3 / 15

Category: THERMAL PROPERTIES OF MATTER

3. ________ expansion of water is the sum of apparent expansion of water and volume expansion of flask.

a) None of these

b) Depth

c) Apparent

d) Real

4 / 15

Category: THERMAL PROPERTIES OF MATTER

4. Evaporation can occur at ___________.

a) freezing point

b) melting point

c) all temperatures

d) boiling point

5 / 15

Category: THERMAL PROPERTIES OF MATTER

5. Heat is the form of ____________.

a) Pressure

b) Energy

c) All

d) Weight

6 / 15

Category: THERMAL PROPERTIES OF MATTER

6. The scale used for quantitative measurement of temperature is/are __________.

a) Fahrenheit

b) all of these

c) Celsius

d) Kelvin

7 / 15

Category: THERMAL PROPERTIES OF MATTER

7. The amount of heat needed to convert a substance from liquid to gas is called _________.

a) All

b) Heat of Vaporization

c) Specific heat

d) Latent Heat of fusion

8 / 15

Category: THERMAL PROPERTIES OF MATTER

8. Thermal energy transfer required to change a solid into liquid without changing its temperature is called ____________.

a) Latent Heat of Fusion

b) Latent heat of Vaporization

c) Latent heat of boiling

d) specific heat capacity

9 / 15

Category: THERMAL PROPERTIES OF MATTER

9. Rate of evaporation of a liquid can be increased by ___________.

a) decreasing temperature

b) decreasing atmospheric pressure

c) increasing its boiling point

d) increasing humidity

10 / 15

Category: THERMAL PROPERTIES OF MATTER

10. Linear thermal expansion of a solid depends upon ___________.

a) all of these

b) properties of material

c) original length

d) increasing in temperature

11 / 15

Category: THERMAL PROPERTIES OF MATTER

11. Heat capacity is the Product of mass and _________.

a) Energy

b) Boiling point

c) Specific heat of material

d) Freezing point

12 / 15

Category: THERMAL PROPERTIES OF MATTER

12. The melting point of ice at normal atmospheric pressure is ___________.

a) 0 °C

b) 0 K

c) Both 0°C and 0K

d) 100 °C

13 / 15

Category: THERMAL PROPERTIES OF MATTER

13. Degree of hotness and coldness of a body is called __________.

a) density

b) heat

c) temperature

d) volume

14 / 15

Category: THERMAL PROPERTIES OF MATTER

14. The process in which liquid changes into gas without any external energy supply is called ________________.

a) evaporation

b) freezing

c) melting

d) boiling

15 / 15

Category: THERMAL PROPERTIES OF MATTER

15. Thermal energy transfer required per unit mass to increase the temperature by 1°C or 1K is called ___________.

a) Latent heat of fusion

b) Latent heat of Vaporization

c) Thermal capacity

d) Specific heat Capacity

Your score is

The average score is 80%

After solving these Class 9th Physics quizzes you can also try other quizzes and you can check your ability and skills for class 9th mathematics chapter-wise quizzes too…

It will surely improve your power of attempting multiple choice questions in exams.

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