Physics Qualification related questions

What is the SI unit of force?

a) Newton
b) Joule
c) Watt
d) Pascal
Answer: a) Newton
What is the formula for calculating kinetic energy?

a)
𝐾
𝐸
=
1
2
𝑚
𝑣
2
KE=
2
1
​
mv
2

b)
𝐾
𝐸
=
𝑚
𝑔
ℎ
KE=mgh
c)
𝐾
𝐸
=
𝐹
×
𝑑
KE=F×d
d)
𝐾
𝐸
=
1
2
𝑚
𝑣
KE=
2
1
​
mv
Answer: a)
𝐾
𝐸
=
1
2
𝑚
𝑣
2
KE=
2
1
​
mv
2

Which of the following is an example of a vector quantity?

a) Mass
b) Distance
c) Speed
d) Displacement
Answer: d) Displacement
What is the acceleration due to gravity on Earth’s surface approximately equal to?

a) 9.81 m/s²
b) 10 m/s²
c) 5.67 × 10^-11 Nm²/kg²
d) 3 × 10^8 m/s²
Answer: a) 9.81 m/s²
According to Newton’s third law of motion, for every action, there is an equal and opposite…

a) Reaction
b) Force
c) Acceleration
d) Momentum
Answer: a) Reaction
What is the unit of electric current?

a) Ampere
b) Volt
c) Ohm
d) Watt
Answer: a) Ampere
Which of the following is a unit of power?

a) Volt
b) Ampere
c) Watt
d) Ohm
Answer: c) Watt
What does the term ‘refraction’ refer to in physics?

a) Bending of light waves
b) Reflection of sound waves
c) Absorption of heat waves
d) Expansion of gas particles
Answer: a) Bending of light waves
What is the SI unit of electric charge?

a) Coulomb
b) Ohm
c) Farad
d) Ampere-hour
Answer: a) Coulomb
What is the law of conservation of energy?

a) Energy cannot be created or destroyed, only transferred or transformed.
b) Energy is created when work is done.
c) Energy is destroyed when friction occurs.
d) Energy is proportional to mass and velocity.
Answer: a) Energy cannot be created or destroyed, only transferred or transformed.
Which of the following is a renewable source of energy?

a) Coal
b) Natural gas
c) Solar power
d) Petroleum
Answer: c) Solar power
What is the formula for Ohm’s Law?

a)
𝑉
=
𝐼
𝑅
V=IR
b)
𝐼
=
𝑉
𝑅
I=
R
V
​

c)
𝑅
=
𝑉
𝐼
R=
I
V
​

d)
𝑃
=
𝐼
𝑉
P=IV
Answer: b)
𝐼
=
𝑉
𝑅
I=
R
V
​

What does the term ‘momentum’ represent in physics?

a) Force applied over a distance
b) Speed of an object
c) Mass in motion
d) Acceleration due to gravity
Answer: c) Mass in motion
What is the SI unit of frequency?

a) Hertz
b) Joule
c) Watt
d) Pascal
Answer: a) Hertz
What is the relationship between frequency and wavelength of a wave in a given medium?

a) They are inversely proportional.
b) They are directly proportional.
c) They are unrelated.
d) They are exponentially related.
Answer: a) They are inversely proportional.
Which of the following is a fundamental force of nature?

a) Gravitational force
b) Magnetic force
c) Frictional force
d) Tension force
Answer: a) Gravitational force
What is the SI unit of work and energy?

a) Joule
b) Newton
c) Watt
d) Volt
Answer: a) Joule
What is the formula for calculating mechanical advantage?

a)
𝑀
𝐴
=
𝑜
𝑢
𝑡
𝑝
𝑢
𝑡
𝑓
𝑜
𝑟
𝑐
𝑒
𝑖
𝑛
𝑝
𝑢
𝑡
𝑓
𝑜
𝑟
𝑐
𝑒
MA=
inputforce
outputforce
​

b)
𝑀
𝐴
=
𝑖
𝑛
𝑝
𝑢
𝑡
𝑓
𝑜
𝑟
𝑐
𝑒
𝑜
𝑢
𝑡
𝑝
𝑢
𝑡
𝑓
𝑜
𝑟
𝑐
𝑒
MA=
outputforce
inputforce
​

c)
𝑀
𝐴
=
𝑑
𝑖
𝑠
𝑡
𝑎
𝑛
𝑐
𝑒
𝑡
𝑖
𝑚
𝑒
MA=
time
distance
​

d)
𝑀
𝐴
=
𝑚
𝑎
𝑠
𝑠
𝑎
𝑐
𝑐
𝑒
𝑙
𝑒
𝑟
𝑎
𝑡
𝑖
𝑜
𝑛
MA=
acceleration
mass
​

Answer: b)
𝑀
𝐴
=
𝑖
𝑛
𝑝
𝑢
𝑡
𝑓
𝑜
𝑟
𝑐
𝑒
𝑜
𝑢
𝑡
𝑝
𝑢
𝑡
𝑓
𝑜
𝑟
𝑐
𝑒
MA=
outputforce
inputforce
​

What is the acceleration of a freely falling object due to gravity in a vacuum?

a) 0 m/s²
b) 9.81 m/s²
c) 10 m/s²
d) 5 m/s²
Answer: b) 9.81 m/s²
What is the law of universal gravitation?

a) Every action has an equal and opposite reaction.
b) The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
c) Energy cannot be created or destroyed, only transformed.
d) Force equals mass times acceleration.
Answer: b) The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Which of the following is true about an object in equilibrium?

a) The net force on the object is zero.
b) The object is moving with constant velocity.
c) The object has zero acceleration.
d) All of the above.
Answer: d) All of the above.
What is the SI unit of power?

a) Watt
b) Joule
c) Newton
d) Volt
Answer: a) Watt
What is the formula for calculating density?

a)
𝐷
𝑒
𝑛
𝑠
𝑖
𝑡
𝑦
=
𝑚
𝑎
𝑠
𝑠
𝑣
𝑜
𝑙
𝑢
𝑚
𝑒
Density=
volume
mass
​

b)
𝐷
𝑒
𝑛
𝑠
𝑖
𝑡
𝑦
=
𝑣
𝑜
𝑙
𝑢
𝑚
𝑒
𝑚
𝑎
𝑠
𝑠
Density=
mass
volume
​

c)
𝐷
𝑒
𝑛
𝑠
𝑖
𝑡
𝑦
=
𝑚
𝑎
𝑠
𝑠
×
𝑣
𝑜
𝑙
𝑢
𝑚
𝑒
Density=mass×volume
d)
𝐷
𝑒
𝑛
𝑠
𝑖
𝑡
𝑦
=
𝑓
𝑜
𝑟
𝑐
𝑒
𝑎
𝑟
𝑒
𝑎
Density=
area
force
​

Answer: a)
𝐷
𝑒
𝑛
𝑠
𝑖
𝑡
𝑦
=
𝑚
𝑎
𝑠
𝑠
𝑣
𝑜
𝑙
𝑢
𝑚
𝑒
Density=
volume
mass
​

Which of the following is a unit of pressure?

a) Pascal
b) Newton
c) Joule
d) Watt
Answer: a) Pascal
What is the relationship between force, mass, and acceleration according to Newton’s second law of motion?

a)
𝐹
=
𝑚
𝑎
F=ma
b)
𝐹
=
𝑚
𝑎
F=
a
m
​

c)
𝑎
=
𝐹
𝑚
a=
m
F
​

d)
𝑚
=
𝐹
𝑎
m=
a
F
​

Answer: a)
𝐹
=
𝑚
𝑎
F=ma
What is the principle behind Archimedes’ principle?

a) An object immersed in a fluid experiences a buoyant force equal to the weight of the fluid displaced.
b) Pressure applied to a confined fluid is transmitted undiminished to every point of the fluid.
c) The rate of change of momentum of an object is directly proportional to the net force applied and inversely proportional to the object’s mass.
d) The total energy of an isolated system remains constant over time.
Answer: a) An object immersed in a fluid experiences a buoyant force equal to the weight of the fluid displaced.
What is the law of reflection concerning light waves?

a) The angle of reflection is equal to the angle of refraction.
b) The angle of incidence is equal to the angle of reflection.
c) The speed of light is constant in all mediums.
d) Light travels in straight lines.
Answer: b) The angle of incidence is equal to the angle of reflection.
What is the SI unit of electric potential difference?

a) Volt
b) Ampere
c) Ohm
d) Watt
Answer: a) VoltWhat is the SI unit of electric resistance?

a) Ohm
b) Volt
c) Ampere
d) Watt
Answer: a) Ohm
What does the term ‘static electricity’ refer to?

a) The electricity generated by moving charges
b) The electricity produced by batteries
c) The buildup of electric charge on an object
d) The flow of electrons in a circuit
Answer: c) The buildup of electric charge on an object
Which of the following statements about nuclear fusion is true?

a) It involves the splitting of atoms.
b) It releases energy by combining small atomic nuclei into a larger one.
c) It is the process behind nuclear reactors.
d) It is the process behind radioactive decay.
Answer: b) It releases energy by combining small atomic nuclei into a larger one.
What is the SI unit of frequency?

a) Hertz
b) Newton
c) Pascal
d) Watt
Answer: a) Hertz
What is the formula for calculating pressure?

a)
𝑃
𝑟
𝑒
𝑠
𝑠
𝑢
𝑟
𝑒
=
𝑓
𝑜
𝑟
𝑐
𝑒
𝑎
𝑟
𝑒
𝑎
Pressure=
area
force
​

b)
𝑃
𝑟
𝑒
𝑠
𝑠
𝑢
𝑟
𝑒
=
𝑎
𝑟
𝑒
𝑎
𝑓
𝑜
𝑟
𝑐
𝑒
Pressure=
force
area
​

c)
𝑃
𝑟
𝑒
𝑠
𝑠
𝑢
𝑟
𝑒
=
𝑓
𝑜
𝑟
𝑐
𝑒
×
𝑎
𝑟
𝑒
𝑎
Pressure=force×area
d)
𝑃
𝑟
𝑒
𝑠
𝑠
𝑢
𝑟
𝑒
=
𝑚
𝑎
𝑠
𝑠
𝑣
𝑜
𝑙
𝑢
𝑚
𝑒
Pressure=
volume
mass
​

Answer: a)
𝑃
𝑟
𝑒
𝑠
𝑠
𝑢
𝑟
𝑒
=
𝑓
𝑜
𝑟
𝑐
𝑒
𝑎
𝑟
𝑒
𝑎
Pressure=
area
force
​

What is the principle behind Pascal’s Law?

a) An object immersed in a fluid experiences a buoyant force equal to the weight of the fluid displaced.
b) Pressure applied to a confined fluid is transmitted undiminished to every point of the fluid.
c) The rate of change of momentum of an object is directly proportional to the net force applied and inversely proportional to the object’s mass.
d) The total energy of an isolated system remains constant over time.
Answer: b) Pressure applied to a confined fluid is transmitted undiminished to every point of the fluid.
Which of the following statements about electromagnetic waves is correct?

a) They require a medium to propagate.
b) They are transverse waves.
c) They travel at speeds slower than light.
d) They have no relation to electricity.
Answer: b) They are transverse waves.
What is the SI unit of capacitance?

a) Farad
b) Ohm
c) Coulomb
d) Ampere-hour
Answer: a) Farad
What does the term ‘resonance’ refer to in physics?

a) The absorption of heat energy by a substance
b) The tendency of an object to remain at rest or in motion
c) The amplification of sound or vibration due to matching frequencies
d) The bending of light waves around an obstacle
Answer: c) The amplification of sound or vibration due to matching frequencies
What is the formula for calculating electrical power?

a)
𝑃
=
𝐼
𝑉
P=IV
b)
𝑃
=
𝐼
2
𝑅
P=I
2
R
c)
𝑃
=
𝑉
2
/
𝑅
P=V
2
/R
d)
𝑃
=
𝑉
𝐼
P=
I
V
​

Answer: a)
𝑃
=
𝐼
𝑉
P=IV
What is the law of conservation of momentum?

a) Momentum cannot be created or destroyed, only transferred or transformed.
b) Momentum is created when work is done.
c) Momentum is destroyed when friction occurs.
d) Momentum is proportional to velocity.
Answer: a) Momentum cannot be created or destroyed, only transferred or transformed.
Which of the following statements about nuclear reactors is true?

a) They operate on the principle of nuclear fusion.
b) They convert nuclear energy directly into electrical energy.
c) They use radioactive materials to generate heat, which is then converted into electrical energy.
d) They are primarily used for space exploration.
Answer: c) They use radioactive materials to generate heat, which is then converted into electrical energy.
What is the SI unit of magnetic flux?

a) Weber
b) Tesla
c) Ampere
d) Henry
Answer: a) Weber
What is the principle behind the functioning of a transformer?

a) Conservation of energy
b) Induction of electric current
c) Refraction of light waves
d) Reflection of sound waves
Answer: b) Induction of electric current
What is the formula for calculating gravitational potential energy?

a)
𝑃
𝐸
=
𝑚
𝑔
ℎ
PE=mgh
b)
𝑃
𝐸
=
1
2
𝑚
𝑣
2
PE=
2
1
​
mv
2

c)
𝑃
𝐸
=
𝐹
×
𝑑
PE=F×d
d)
𝑃
𝐸
=
1
2
𝑚
𝑣
PE=
2
1
​
mv
Answer: a)
𝑃
𝐸
=
𝑚
𝑔
ℎ
PE=mgh
Which of the following statements about electromagnetic induction is true?

a) It is the process of generating an electric current by moving a conductor in a magnetic field.
b) It is the process of generating a magnetic field by passing an electric current through a conductor.
c) It is the process of converting light energy into electrical energy.
d) It is the process of converting heat energy into mechanical energy.
Answer: a) It is the process of generating an electric current by moving a conductor in a magnetic field.
What is the formula for calculating electrical resistance in a circuit?

a)
𝑅
=
𝑉
𝐼
R=
I
V
​

b)
𝑅
=
𝑉
𝐼
R=VI
c)
𝑅
=
𝐼
𝑉
R=
V
I
​

d)
𝑅
=
𝑃
𝑉
2
R=
V
2

P
​

Answer: a)
𝑅
=
𝑉
𝐼
R=
I
V
​

What is the principle behind the functioning of a barometer?

a) It measures atmospheric pressure based on the height of a liquid column.
b) It measures temperature changes based on the expansion of a metal coil.
c) It measures humidity levels in the air.
d) It measures wind speed and direction.
Answer: a) It measures atmospheric pressure based on the height of a liquid column.
Which of the following is a type of electromagnetic radiation with the shortest wavelength?

a) Radio waves
b) Microwaves
c) X-rays
d) Gamma rays
Answer: d) Gamma rays
What is the SI unit of work and energy?

a) Joule
b) Newton
c) Watt
d) Volt
Answer: a) Joule
What is the principle behind the functioning of a thermometer?

a) It measures atmospheric pressure.
b) It measures wind speed.
c) It measures temperature based on the expansion or contraction of a liquid or gas.
d) It measures humidity levels.
Answer: c) It measures temperature based on the expansion or contraction of a liquid or gas.