SS3 First Term Physics Past Questions And Answers
Here are 20 SS3 first term Physics questions with options and answers:
Question: What is the SI unit of force?
A) Newton (N)
B) Joule (J)
C) Watt (W)
D) Pascal (Pa)
Answer: A) Newton (N)
Question: In which state of matter do particles have the least energy and are closely packed?
A) Solid
B) Liquid
C) Gas
D) Plasma
Answer: A) Solid
Question: What is the formula for calculating speed?
A)
Speed
=
Distance
Time
Speed=
Time
Distance
B)
Speed
=
Distance
×
Time
Speed=Distance×Time
C)
Speed
=
Time
Distance
Speed=
Distance
Time
D)
Speed
=
Distance
+
Time
Speed=Distance+Time
Answer: A)
Speed
=
Distance
Time
Speed=
Time
Distance
Question: Which law of motion 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 Inertia
Answer: C) Newton’s Third Law
Question: What is the unit of electric current?
A) Volt (V)
B) Ohm (Ω)
C) Ampere (A)
D) Watt (W)
Answer: C) Ampere (A)
Question: Which electromagnetic wave has the shortest wavelength?
A) Radio waves
B) Microwaves
C) X-rays
D) Gamma rays
Answer: D) Gamma rays
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 equal to the angle of reflection
D) The angle of incidence and angle of reflection have a constant ratio
Answer: B) The angle of incidence is equal to the angle of reflection
Question: What is the SI unit of power?
A) Joule (J)
B) Watt (W)
C) Newton (N)
D) Ampere (A)
Answer: B) Watt (W)
Question: Which planet is known as the “Red Planet”?
A) Venus
B) Mars
C) Jupiter
D) Saturn
Answer: B) Mars
Question: What is the formula for density?
A)
Density
=
Mass
Volume
Density=
Volume
Mass
B)
Density
=
Mass
×
Volume
Density=Mass×Volume
C)
Density
=
Volume
Mass
Density=
Mass
Volume
D)
Density
=
Mass
+
Volume
Density=Mass+Volume
Answer: A)
Density
=
Mass
Volume
Density=
Volume
Mass
Question: What is the focal point of a concave mirror?
A) Real and in front of the mirror
B) Real and behind the mirror
C) Virtual and in front of the mirror
D) Virtual and behind the mirror
Answer: C) Virtual and in front of the mirror
Question: Which law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted?
A) Zeroth Law
B) First Law
C) Second Law
D) Third Law
Answer: B) First Law
Question: What is the formula for work done?
A)
Work
=
Force
×
Distance
Work=Force×Distance
B)
Work
=
Force
Distance
Work=
Distance
Force
C)
Work
=
Force
+
Distance
Work=Force+Distance
D)
Work
=
Distance
Force
Work=
Force
Distance
Answer: A)
Work
=
Force
×
Distance
Work=Force×Distance
Question: What is the phenomenon where a wave changes speed and direction upon entering a different medium?
A) Reflection
B) Refraction
C) Diffraction
D) Interference
Answer: B) Refraction
Question: Which type of lens is thicker in the center than at the edges?
A) Convex lens
B) Concave lens
C) Plano-convex lens
D) Plano-concave lens
Answer: A) Convex lens
Question: What is the SI unit of electric charge?
A) Coulomb (C)
B) Ampere-hour (Ah)
C) Volt (V)
D) Farad (F)
Answer: A) Coulomb (C)
Question: What is the phenomenon of a substance changing directly from a solid to a gas without passing through the liquid phase?
A) Evaporation
B) Sublimation
C) Condensation
D) Melting
Answer: B) Sublimation
Question: What is the frequency of a wave with a period of 0.02 seconds?
A) 20 Hz
B) 40 Hz
C) 0.02 Hz
D) 0.5 Hz
Answer: A) 20 Hz
Question: Which type of circuit has all its components connected in a single loop?
A) Parallel circuit
B) Series circuit
C) Combination circuit
D) Open circuit
Answer: B) Series circuit
Question: According to the law of conservation of momentum, what happens to the total momentum of a system of objects in the absence of external forces?
A) Increases
B) Decreases
C) Remains constant
D) Becomes zero
Answer: C) Remains constant.
