Physics (all branches) Study Question & Answer.
Question 1
What is the fundamental force of nature responsible for holding quarks together inside
protons and neutrons?
A) Electromagnetism
B) Strong Nuclear Force
C) Weak Nuclear Force
D) Gravity
Answer: B) Strong Nuclear Force
Question 2
A particle of mass m moves with a velocity v in a circular path of radius r. What is the
centripetal force acting on the particle?
A) mv^2/r
B) mv/r
C) mr^2/v
D) m/vr
Answer: A) mv^2/r
Question 3
What is the name of the phenomenon where a system's entropy remains constant over
time?
,A) Isolation
B) Equilibrium
C) Reversible Process
D) Irreversible Process
Answer: C) Reversible Process
Question 4
A wave has a frequency of 50 Hz and a wavelength of 10 meters. What is the speed of the
wave?
A) 500 m/s
B) 5000 m/s
C) 50 m/s
D) 50000 m/s
Answer: A) 500 m/s
Question 5
What is the term for the minimum amount of energy required to remove an electron from a
solid?
A) Work Function
B) Ionization Energy
C) Electron Affinity
D) Threshold Energy
Answer: A) Work Function
Question 6
,A current of 5 A flows through a resistance of 2 ohms. What is the voltage across the
resistance?
A) 10 V
B) 5 V
C) 2.5 V
D) 1 V
Answer: A) 10 V
Question 7
What is the process by which a nucleus emits a beta particle to become more stable?
A) Radioactive Decay
B) Nuclear Fission
C) Nuclear Fusion
D) Beta Decay
Answer: D) Beta Decay
Question 8
A mirror is placed 2 meters from an object. What is the focal length of the mirror if the
image is real and inverted?
A) 1 meter
B) 2 meters
C) 4 meters
D) 0.5 meters
Answer: B) 2 meters
, Question 9
What is the term for the energy stored in a magnetic field?
A) Magnetic Potential Energy
B) Electromagnetic Energy
C) Magnetic Field Energy
D) Inductive Energy
Answer: C) Magnetic Field Energy
Question 10
A charge of 3 coulombs is placed 2 meters from a charge of 2 coulombs. What is the force
between the charges?
A) 12 N
B) 6 N
C) 3 N
D) 9 N
Answer: D) 9 N
Question 11
What is the process by which a nucleus splits into two or more smaller nuclei?
A) Nuclear Fission
B) Nuclear Fusion
C) Radioactive Decay
Question 1
What is the fundamental force of nature responsible for holding quarks together inside
protons and neutrons?
A) Electromagnetism
B) Strong Nuclear Force
C) Weak Nuclear Force
D) Gravity
Answer: B) Strong Nuclear Force
Question 2
A particle of mass m moves with a velocity v in a circular path of radius r. What is the
centripetal force acting on the particle?
A) mv^2/r
B) mv/r
C) mr^2/v
D) m/vr
Answer: A) mv^2/r
Question 3
What is the name of the phenomenon where a system's entropy remains constant over
time?
,A) Isolation
B) Equilibrium
C) Reversible Process
D) Irreversible Process
Answer: C) Reversible Process
Question 4
A wave has a frequency of 50 Hz and a wavelength of 10 meters. What is the speed of the
wave?
A) 500 m/s
B) 5000 m/s
C) 50 m/s
D) 50000 m/s
Answer: A) 500 m/s
Question 5
What is the term for the minimum amount of energy required to remove an electron from a
solid?
A) Work Function
B) Ionization Energy
C) Electron Affinity
D) Threshold Energy
Answer: A) Work Function
Question 6
,A current of 5 A flows through a resistance of 2 ohms. What is the voltage across the
resistance?
A) 10 V
B) 5 V
C) 2.5 V
D) 1 V
Answer: A) 10 V
Question 7
What is the process by which a nucleus emits a beta particle to become more stable?
A) Radioactive Decay
B) Nuclear Fission
C) Nuclear Fusion
D) Beta Decay
Answer: D) Beta Decay
Question 8
A mirror is placed 2 meters from an object. What is the focal length of the mirror if the
image is real and inverted?
A) 1 meter
B) 2 meters
C) 4 meters
D) 0.5 meters
Answer: B) 2 meters
, Question 9
What is the term for the energy stored in a magnetic field?
A) Magnetic Potential Energy
B) Electromagnetic Energy
C) Magnetic Field Energy
D) Inductive Energy
Answer: C) Magnetic Field Energy
Question 10
A charge of 3 coulombs is placed 2 meters from a charge of 2 coulombs. What is the force
between the charges?
A) 12 N
B) 6 N
C) 3 N
D) 9 N
Answer: D) 9 N
Question 11
What is the process by which a nucleus splits into two or more smaller nuclei?
A) Nuclear Fission
B) Nuclear Fusion
C) Radioactive Decay
