Physics Quiz Questions and Answers

1

Which lens type is thicker in the middle than at the edges?

▼

A

Concave

B

Convex

C

Cylindrical

D

Flat

2

What optical device separates white light into a spectrum of colors?

▼

A

Fiber optic

B

Prism

C

Lens

D

Mirror

3

Which type of telescope uses mirrors to focus light?

▼

A

Compound

B

Reflecting

C

Refracting

D

Binocular

4

What happens when light passes from air into a glass prism?

▼

A

Refraction

B

Absorption

C

Diffraction

D

Reflection

5

Which lens is used to correct nearsightedness?

▼

A

Bifocal

B

Plano

C

Concave

D

Convex

6

A magnifying glass is an example of what type of lens?

▼

A

Concave

B

Diverging

C

Convex

D

Plane

7

What part of a telescope gathers incoming light?

▼

A

Filter

B

Stand

C

Eyepiece

D

Objective

8

Which color of light bends the most when passing through a prism?

▼

A

Green

B

Red

C

Yellow

D

Violet

9

What is the primary function of a lens?

▼

A

Scattering

B

Transmission

C

Reflection

D

Refraction

10

Which type of telescope uses glass lenses to collect light?

▼

A

Refracting

B

Radio

C

Reflecting

D

X-ray

11

What is the point where light rays converge after passing through a lens?

▼

A

Focal point

B

Center

C

Radius

D

Apex

12

Which optical instrument is used to see very distant objects?

▼

A

Periscope

B

Camera

C

Microscope

D

Telescope

13

What do we call the bending of light as it changes medium?

▼

A

Refraction

B

Reflection

C

Dispersion

D

Polarization

14

Which lens produces a virtual image that is smaller than the object?

▼

A

Converging

B

Convex

C

Magnifying

D

Concave

15

In a prism, which color is found at the top of the spectrum?

▼

A

Green

B

Blue

C

Violet

D

Red

16

Which law states that energy cannot be created or destroyed?

▼

A

First Law

B

Zeroth Law

C

Third Law

D

Second Law

17

What term refers to the measure of disorder in a system?

▼

A

Enthalpy

B

Temperature

C

Entropy

D

Energy

18

According to the Second Law, in which direction does entropy change?

▼

A

Becomes zero

B

Stays constant

C

Increases

D

Decreases

19

What is the theoretical end state of the universe called?

▼

A

Black hole

B

Heat death

C

Big Bang

D

Supernova

20

Which law deals with absolute zero?

▼

A

First

B

Third

C

Zeroth

D

Second

21

Heat naturally flows from a body of higher temperature to what?

▼

A

Higher pressure

B

Same temperature

C

Vacuum

D

Lower temperature

22

What is the Zeroth Law of thermodynamics mainly about?

▼

A

Temperature equilibrium

B

Entropy

C

Pressure

D

Energy

23

Can a heat engine be 100% efficient?

▼

A

Only at high speed

B

No

C

Only in theory

D

Yes

24

What happens to entropy in an isolated system over time?

▼

A

Increases

B

Vanishes

C

Fluctuates

D

Decreases

25

The total energy of the universe is constant is stated by which law?

▼

A

Fourth

B

Third

C

Second

D

First

26

What is the state of minimum entropy?

▼

A

Plasma state

B

Boiling point

C

Absolute zero

D

Room temperature

27

What does the Second Law of Thermodynamics imply about universe processes?

▼

A

Reversibility

B

Stability

C

Irreversibility

D

Growth

28

What is required to move heat from a cold body to a hot body?

▼

A

Entropy

B

Vacuum

C

External work

D

Gravity

29

What is the 'heat death' of the universe?

▼

A

Total darkness

B

Uniform temperature

C

Expansion stop

D

Extreme heat

30

Which law is related to the definition of temperature?

▼

A

Zeroth

B

First

C

Third

D

Second

31

What is the freezing point of water on the Celsius scale?

▼

A

100

B

273

C

0

D

32

Which temperature scale starts at absolute zero?

▼

A

Rankine

B

Kelvin

C

Fahrenheit

D

Celsius

33

What is the boiling point of water in Celsius?

▼

A

212

B

373

C

100

D

50

34

On which scale is water's freezing point 32 degrees?

▼

A

Fahrenheit

B

Kelvin

C

Celsius

D

Rankine

35

What instrument is used to measure temperature?

▼

A

Hydrometer

B

Manometer

C

Thermometer

D

Barometer

36

What is 0 degrees Celsius in Kelvin?

▼

A

273

B

32

C

0

D

100

37

Which scale is commonly used for weather in the USA?

▼

A

Kelvin

B

Metric

C

Celsius

D

Fahrenheit

38

What is the boiling point of water in Fahrenheit?

▼

A

212

B

100

C

273

D

373

39

What is the base unit of temperature in the SI system?

▼

A

Degree

B

Kelvin

C

Celsius

D

Fahrenheit

40

Which substance was commonly used in old thermometers?

▼

A

Mercury

B

Gold

C

Water

D

Oil

Physics Quiz Questions and Answers

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