Free Printable Physics Quiz

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Worksheets

Physics Quiz

Total questions: 28

Worksheet time: 14mins

Name

Class

Date

1.

The speed of light is maximum in a medium having

a)

Highest refractive index

b)

Lowest refractive index

c)

Equal refractive index

d)

Zero refractive index

2.

Magnification of a convex lens can be

a)

Only positive

b)

Only negative

c)

Either positive or negative

d)

Always zero

3.

Power of a lens –4 D, focal length is

a)

4 m

b)

–40 m

c)

–0.25 m

d)

–2.5 m

4.

Lens preferred for reading small letters in a dictionary

a)

Convex lens (5 cm)

b)

Concave lens (5 cm)

c)

Convex lens (10 cm)

d)

Concave lens (10 cm)

5.

Relation between velocities of colours in glass

a)

VB = VG = VR

b)

VB > VG > VR

c)

VB < VR

6.

Change in mass of a substance on heating or cooling is

a)

Positive

b)

Negative

c)

Zero

d)

Unpredictable

7.

Temperature of a substance depends on average

a)

Kinetic energy only

b)

Potential energy only

c)

Sum of potential and kinetic energy

d)

Difference of energies

8.

Rate of change of charge is

a)

Electrical power

b)

Current

c)

Energy

d)

Resistance

9.

Sound frequency audible to humans is up to

a)

50 kHz

b)

20 kHz

c)

100 kHz

d)

150 kHz

10.

When sound waves are reflected, which changes?

a)

Speed

b)

Frequency

c)

Wavelength

d)

Amplitude

11.

Artificial radioactivity was discovered by

a)

Becquerel

b)

Irene Curie

c)

Roentgen

d)

Bohr

12.

No change in mass number occurs in

a)

Alpha decay

b)

Beta and gamma decay

c)

Alpha and neutron decay

d)

Beta decay

13.

Gamma rays are dangerous because they

a)

Produce heat

b)

Affect tissues

c)

Produce genetic disorder

d)

Affect bones only

14.

Proton–proton chain reaction is an example of

a)

Nuclear fission

b)

Alpha decay

c)

Nuclear fusion

d)

Beta decay

15.

Kamini reactor is located at

a)

Kalpakkam

b)

Kudankulam

c)

Mumbai

d)

Rajasthan

16.

Which has the smallest mass?

a)

1 mole of He

b)

2 g of He

c)

6.023 × 10²³ atoms of He

d)

1 atom of He

17.

Volume of 1 mole of gas at STP is

a)

11.2 L

b)

5.6 L

c)

22.4 L

d)

44.8 L

18.

Gram molecular mass of oxygen is

a)

16 g

b)

18 g

c)

32 g

d)

34 g

19.

Number of periods and groups in periodic table

a)

6,16

b)

7,17

c)

8,18

d)

7,18

20.

Halogens belong to

a)

16th group

b)

15th group

c)

17th group

d)

18th group

21.

Metal used to form amalgam

a)

Ag

b)

Hg

c)

Mg

d)

Al

22.

Number of components in a binary solution

a)

1

b)

2

c)

3

d)

4

23.

Non-aqueous solution is

a)

NaCl in water

b)

Glucose in water

c)

CuSO₄ in water

d)

Sulphur in carbon disulphide

24.

Deliquescence is due to

a)

Strong affinity to water

b)

Less affinity to water

c)

Hatred to water

d)

Inert nature

25.

H₂(g) + Cl₂(g) → 2HCl(g) is

a)

Decomposition reaction

b)

Combination reaction

c)

Displacement reaction

d)

Precipitation reaction

26.

Precipitation reaction is

a)

A(s)+B(s)→C(s)+D(s)

b)

A(aq)+B(aq)→C(s)+D(aq)

c)

A(s)+B(aq)→C(aq)+D(l)

d)

A(aq)+B(s)→C(aq)+D(l)

27.

Rectified spirit contains about

a)

75.5% ethanol

b)

55.5% ethanol

c)

95.5% ethanol

d)

45.5% ethanol

28.

TFM in soap indicates

a)

Mineral content

b)

Vitamin content

c)

Fatty acid content

d)

Carbohydrate content

100 %

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