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# SS3 first term physics past questions and answers

## SS3 first term physics past questions and answers

Here are 20 SS3 physics questions with options and answers:

Question: What is the SI unit of electric current?

A) Joule
B) Watt
C) Ampere
D) Volt
Question: Which of the following is a vector quantity?

A) Speed
B) Distance
C) Time
D) Displacement
Question: What is the formula for calculating force?

A) F = ma
B) F = ms
C) F = mv
D) F = me
Question: Which law states that every action has an equal and opposite reaction?

A) Newton's First Law
B) Newton's Second Law
C) Newton's Third Law
D) Law of Gravitation
Question: What is the unit of measurement for frequency?

A) Hertz
B) Newton
C) Pascal
D) Watt
Question: Which type of energy is associated with motion?

A) Potential energy
B) Kinetic energy
C) Thermal energy
D) Chemical energy
Question: What is the relationship between wavelength and frequency in a wave?

A) Inversely proportional
B) Directly proportional
C) No relationship
D) Exponential relationship
Question: Which of the following is a semiconductor material?

A) Copper
B) Aluminum
C) Silicon
D) Iron
Question: What is the law of conservation of energy?

A) Energy can be created but not destroyed
B) Energy cannot be created or destroyed, only converted from one form to another
C) Energy is constant in a closed system
D) Energy is always increasing in a system
Answer: B) Energy cannot be created or destroyed, only converted from one form to another
Question: Which lens converges light rays?

A) Convex lens
B) Concave lens
C) Plano-concave lens
D) Plano-convex lens
Question: What is the unit of electric charge?

A) Ampere
B) Volt
C) Coulomb
D) Ohm
Question: What is the formula for acceleration?

A) a = \frac{v}{t}a=
t
v
​

B) a = \frac{t}{v}a=
v
t
​

C) a = \frac{v}{s}a=
s
v
​

D) a = \frac{s}{t}a=
t
s
​

t
v
​

Question: In a series circuit, what happens to the total resistance?

A) Increases
B) Decreases
C) Remains the same
D) Becomes zero
Question: What is the SI unit of power?

A) Watt
B) Joule
C) Newton
D) Ampere
Question: Which law of thermodynamics states that energy cannot be converted completely to work in a cyclic process?

A) Zeroth Law
B) First Law
C) Second Law
D) Third Law
Question: What is the speed of light in a vacuum?

A) 3 \times 10^83×10
8
m/s
B) 3 \times 10^73×10
7
m/s
C) 3 \times 10^63×10
6
m/s
D) 3 \times 10^53×10
5
m/s
8
m/s
Question: Which phenomenon is responsible for the formation of a rainbow?

A) Diffraction
B) Dispersion
C) Reflection
D) Refraction
Question: What is the law of reflection?

A) The angle of incidence is equal to the angle of refraction
B) The angle of incidence is equal to the angle of reflection
C) The angle of refraction is greater than the angle of incidence
D) The angle of reflection is greater than the angle of incidence
Answer: B) The angle of incidence is equal to the angle of reflection
Question: What is the relationship between pressure and volume in Boyle's Law?

A) P \propto VP∝V
B) P \propto \frac{1}{V}P∝
V
1
​

C) PV = \text{constant}PV=constant
D) P = \frac{V}{T}P=
T
V
​

V
1
​

Question: Which of the following is a fundamental particle of an atom?

A) Proton
B) Neutron
C) Electron
D) All of the above
Answer: D) All of the above