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

Answer: C) Ampere

Question: Which of the following is a vector quantity?

A) Speed

B) Distance

C) Time

D) Displacement

Answer: D) Displacement

Question: What is the formula for calculating force?

A) F = ma

B) F = ms

C) F = mv

D) F = me

Answer: A) F = ma

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

Answer: C) Newton's Third Law

Question: What is the unit of measurement for frequency?

A) Hertz

B) Newton

C) Pascal

D) Watt

Answer: A) Hertz

Question: Which type of energy is associated with motion?

A) Potential energy

B) Kinetic energy

C) Thermal energy

D) Chemical energy

Answer: B) Kinetic 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

Answer: B) Directly proportional

Question: Which of the following is a semiconductor material?

A) Copper

B) Aluminum

C) Silicon

D) Iron

Answer: C) Silicon

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

Answer: A) Convex lens

Question: What is the unit of electric charge?

A) Ampere

B) Volt

C) Coulomb

D) Ohm

Answer: C) Coulomb

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

​ 

 

Answer: A) a = \frac{v}{t}a= 

t

v

​ 

 

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

A) Increases

B) Decreases

C) Remains the same

D) Becomes zero

Answer: A) Increases

Question: What is the SI unit of power?

A) Watt

B) Joule

C) Newton

D) Ampere

Answer: A) Watt

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

Answer: C) Second 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

Answer: A) 3 \times 10^83×10 

8

  m/s

Question: Which phenomenon is responsible for the formation of a rainbow?

A) Diffraction

B) Dispersion

C) Reflection

D) Refraction

Answer: B) Dispersion

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

​ 

 

Answer: B) P \propto \frac{1}{V}P∝ 

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