1.
What is density?
A
Mass multiplied by volume
B
Volume divided by mass
C
Mass per unit volume
D
Weight per unit volume
2.
Energy possessed by a moving object is called:
A
Potential energy
B
Chemical energy
C
Kinetic energy
D
Heat energy
3.
Which application uses magnetism in data storage?
A
LCD screen
B
Hard disk
C
Calculator
D
Solar panel
4.
Which instrument is commonly used to measure mass?
A
Thermometer
B
Measuring cylinder
C
Balance
D
Stopwatch
5.
Ferromagnetic materials are:
A
Strongly attracted by magnets
B
Weakly attracted
C
Weakly repelled
D
Not affected
6.
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
7.
Which is NOT a sub-field of physics?
A
Mechanics
B
Optics
C
Botany
D
Thermodynamics
8.
If force is applied but no displacement occurs, the work done is:
A
Maximum
B
Minimum
C
Zero
D
Negative
9.
Magnetic field lines always emerge from:
A
South pole
B
Center of magnet
C
North pole
D
All sides equally
10.
Sensitivity of thermometer depends on:
A
Length of stem
B
Thickness of bulb
C
Volume of bulb and capillary
D
Color of liquid
11.
Which material can be magnetized easily?
A
Copper
B
Plastic
C
Iron
D
Wood
12.
Domain theory explains magnetism due to:
A
Electric charges
B
Alignment of domains
C
Gravity
D
Heat energy
13.
Which property of a magnet causes it to attract iron?
A
Electric charge
B
Magnetic field
C
Gravity
D
Friction
14.
A compass needle aligns itself along:
A
Electric field
B
Earth’s magnetic field
C
Gravitational field
D
Solar radiation
15.
A scientific law describes ____.
A
Why something happens
B
How something happens
C
Who discovered it
D
Where it is used
16.
Which of the following best represents collaboration in science?
A
Working alone
B
Sharing data with others
C
Keeping results secret
D
Avoiding discussion
17.
Which energy source is non-renewable?
A
Wind
B
Hydel
C
Coal
D
Solar
18.
Range of thermometer means:
A
Accuracy
B
Maximum and minimum measurable temperature
C
Speed of response
D
Sensitivity
19.
Which comes first in scientific study?
A
Law
B
Theory
C
Hypothesis
D
Technology
20.
An electromagnet works on the principle of:
A
Static electricity
B
Chemical reaction
C
Magnetic effect of current
D
Electrolysis
21.
Which of the following is a physical science?
A
Biology
B
Sociology
C
Physics
D
Psychology
22.
Technology mainly focuses on ____.
A
Discovering laws
B
Applying scientific knowledge
C
Forming hypotheses
D
Testing theories
23.
Which instrument is used to measure temperature?
A
Barometer
B
Thermometer
C
Hygrometer
D
Manometer
24.
Physicists mainly try to understand ____.
A
Human behavior
B
Natural phenomena
C
Economic systems
D
Political systems
25.
Which statement best defines a scientific law?
A
It explains observations
B
It predicts behavior under certain conditions
C
It is a personal idea
D
It cannot be tested
26.
In an unmagnetized material, magnetic domains are:
A
Randomly oriented
B
Fully aligned
C
Absent
D
Very large
27.
The study of sound comes under which branch?
A
Optics
B
Acoustics
C
Mechanics
D
Electromagnetism
28.
Which state of matter has a fixed shape?
A
Liquid
B
Gas
C
Solid
D
Plasma
29.
Magnetic field lines enter the magnet at:
A
North pole
B
South pole
C
Center
D
Any point
30.
Which sub-field deals with electric charges?
A
Mechanics
B
Electromagnetism
C
Thermodynamics
D
Optics
31.
When a body falls freely, its potential energy is converted into:
A
Chemical energy
B
Heat energy
C
Kinetic energy
D
Sound energy
32.
What is plasma?
A
Cold gas
B
Liquid with ions
C
Ionized gas
D
Heated solid
33.
Nuclear physics studies ____.
A
Electrons
B
Atomic nucleus
C
Sound
D
Light only
34.
A machine that works without energy loss is called:
A
Simple machine
B
Ideal machine
C
Complex machine
D
Heat engine
35.
Particle model of matter explains:
A
Only solids
B
Only liquids
C
Structure and behavior of matter
D
Only gases
36.
Which statement is true about science?
A
It never changes
B
It grows with new evidence
C
It is based on belief
D
It avoids testing
37.
Why is mercury suitable for thermometers?
A
It is colorful
B
It sticks to glass
C
It expands uniformly
D
It freezes easily