SS1 Second Term Physics Past Questions and Answers

Question: Which of the following is a vector quantity?

 

a) Speed

b) Distance

c) Displacement

d) Time

Answer: c) Displacement

 

Question: What is the formula for calculating work done?

 

a) Work = Force × Distance

b) Work = Mass × Acceleration

c) Work = Power × Time

d) Work = Energy × Time

Answer: a) Work = Force × Distance

 

Question: The ability of a substance to conduct electric current is known as:

 

a) Resistance

b) Conductivity

c) Capacitance

d) Insulation

Answer: b) Conductivity

 

Question: According to Newton’s second law of motion, what is the formula for force?

 

a) Force = Mass × Acceleration

b) Force = Mass ÷ Acceleration

c) Force = Work ÷ Time

d) Force = Power × Time

Answer: a) Force = Mass × Acceleration

 

Question: What is the principle behind a transformer?

 

a) Archimedes’ principle

b) Pascal’s law

c) Faraday’s law of electromagnetic induction

d) Ohm’s law

Answer: c) Faraday’s law of electromagnetic induction

 

Question: The SI unit of electric charge is:

 

a) Coulomb (C)

b) Ampere-hour (Ah)

c) Volt (V)

d) Watt-hour (Wh)

Answer: a) Coulomb (C)

 

Question: What type of lens converges light rays to a single point?

 

a) Convex lens

b) Concave lens

c) Bifocal lens

d) Plano-convex lens

Answer: a) Convex lens

 

Question: The process of a substance changing from a gas to a liquid is called:

 

a) Sublimation

b) Evaporation

c) Condensation

d) Fusion

Answer: c) Condensation

 

Question: What is the unit of electric potential difference?

 

a) Volt (V)

b) Ohm (Ω)

c) Ampere (A)

d) Watt (W)

Answer: a) Volt (V)

 

Question: The SI unit of frequency is:

 

a) Hertz (Hz)

b) Newton (N)

c) Joule (J)

d) Watt (W)

Answer: a) Hertz (Hz)

 

Question: What is the law of conservation of momentum?

 

a) The total momentum of a system remains constant if no external force acts on it

b) Momentum is inversely proportional to velocity

c) Momentum is directly proportional to acceleration

d) Momentum is conserved only for elastic collisions

Answer: a) The total momentum of a system remains constant if no external force acts on it

 

Question: Which color of light is refracted the most when passing through a prism?

 

a) Red

b) Green

c) Blue

d) Yellow

Answer: c) Blue

 

Question: The process of breaking down a nucleus into smaller particles is known as:

 

a) Nuclear fusion

b) Nuclear fission

c) Radioactive decay

d) Electron capture

Answer: b) Nuclear fission

 

Question: What is the law of gravitation?

 

a) Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it

b) The force of attraction between two masses is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

c) For every action, there is an equal and opposite reaction

d) The rate of change of momentum of an object is directly proportional to the net external force applied to it

Answer: b) The force of attraction between two masses is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

 

Question: Which of the following is a characteristic of sound waves?

 

a) Amplitude

b) Speed

c) Wavelength

d) All of the above

Answer: d) All of the above

 

Question: What is the law of reflection?

 

a) The angle of incidence is equal to the angle of refraction

b) The angle of reflection is equal to the angle of incidence

c) Light travels in straight lines

d) The speed of light is constant

Answer: b) The angle of reflection is equal to the angle of incidence

 

Question: Which type of waves require a medium for propagation?

 

a) Transverse waves

b) Longitudinal waves

c) Electromagnetic waves

d) Standing waves

Answer: b) Longitudinal waves

 

Question: What is the principle behind a simple pendulum?

 

a) Archimedes’ principle

b) Newton’s first law of motion

c) Hooke’s law

d) Boyle’s law

Answer: c) Hooke’s law

 

Question: What is the focal point of a concave mirror?

 

a) In front of the mirror

b) Behind the mirror

c) At the center of curvature

d) At infinity

Answer: b) Behind the mirror

 

Question: Which o

f the following is a semiconductor material?

 

a) Copper (Cu)

b) Silicon (Si)

c) Aluminum (Al)

d) Gold (Au)

Answer: b) Silicon (Si)