SS3 Third Term Physics Past Questions And Answers

This blog aims to be a beacon of knowledge, guiding you through the intricacies of physics. Brace yourself for a stimulating journey of discovery!

 

Question:

What is the primary function of a capacitor in an electrical circuit?

 

a) Store electrical energy

b) Resist the flow of current

c) Increase voltage

d) Convert mechanical energy to electrical energy

 

Answer: a) Store electrical energy

 

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) Decreases

b) Increases

c) Remains constant

d) Becomes zero

 

Answer: c) Remains constant

 

Question:

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

 

a) Convex lens

b) Concave lens

c) Plano-convex lens

d) Plano-concave lens

 

Answer: a) Convex lens

 

Question:

Which of the following is a scalar quantity?

 

a) Force

b) Velocity

c) Acceleration

d) Distance

 

Answer: d) Distance

 

Question:

What is the SI unit of frequency?

 

a) Hertz

b) Newton

c) Pascal

d) Joule

 

Answer: a) Hertz

 

Question:

What is the phenomenon where a wave bends around an obstacle?

 

a) Reflection

b) Diffraction

c) Refraction

d) Interference

 

Answer: b) Diffraction

 

Question:

What is the law that states the pressure of a given mass of gas is inversely proportional to its volume at constant temperature?

 

a) Boyle’s Law

b) Charles’s Law

c) Gay-Lussac’s Law

d) Dalton’s Law

 

Answer: a) Boyle’s Law

 

Question:

In nuclear physics, what is the process of combining two atomic nuclei called?

 

a) Fission

b) Fusion

c) Decay

d) Ionization

 

Answer: b) Fusion

 

Question:

Which fundamental force is responsible for holding the nucleus of an atom together?

 

a) Electromagnetic force

b) Gravitational force

c) Weak nuclear force

d) Strong nuclear force

 

Answer: d) Strong nuclear force

 

Question:

What is the SI unit of magnetic flux?

 

a) Weber

b) Tesla

c) Gauss

d) Henry

 

Answer: a) Weber