150+ Physics General Knowledge Questions: Page – 1
Q001) A ball falls from a height of 20 m and then bounces back up to a height of 10 m. The loss of energy is:
A) 5%
B) 25%
C) 50%
D) 75%
Answer: C
Q002) When the sound moves, it carries _________ with it:
A) Mass
B) Energy
C) Potential Difference
D) None of These
Answer: B
Q003) If a person stands on a sensitive scale and takes a deep breath, then the scale’s reading will:
A) Increase
B) Decrease
C) No Effect on the Reading
D) None of These
Answer: B
Q004) The focus distance of a convex lens is 0.25 cm. Its capacity will be:
A) 2D
B) -2D
C) 4D
D) -4D
Answer: C
Q005) What is the physical state of water at 12°C:
A) Liquid
B) Solid
C) Ionic
D) None of These
Answer: A
Q006) In which of the following medium the speed of sound will be maximum at a temperature of about 20°C:
A) Air
B) Granite
C) Water
D) Iron
Answer: D
Q007) Sound is produced by ___________:
A) Vibrating Objects
B) Moving Objects
C) Talking Phone
D) Swinging Bodies
Answer: A
Q008) Secondary cells are those, which _____________:
A) Can’t be Recharged
B) Can be Recharged
C) Can be Used Only Once
D) Both B and C
Answer: B
Q009) What is the lowest freezing point of mercury:
A) 0°C
B) -4°C
C) -39°C
D) -69°C
Answer: C
Q010) When pressure is increased in a gas cylinder, its mass will ___________:
A) Increase
B) Decrease
C) Both A and B
D) Remain Unchanged
Answer: D
Q011) Angstrom is a unit of expressing ________:
A) Time
B) Mass
C) Length
D) Force
Answer: C
Q012) If a bulb of 100 W is burnt for 5 hours daily, then how much will it cost in 30 days at the rate of 50 paise per unit:
A) 7.50
B) 9.50
C) 11.50
D) 13.50
Answer: A
Q013) Photovoltaic cells are:
A) Solar Cell
B) Thermal Cell
C) Sulphur Cell
D) Molar Cell
Answer: A
Q014) What portion of the iceberg is above the surface of the sea while floating in the sea:
A) 1/4
B) 1/6
C) 1/9
D) 1/10
Answer: D
Q015) __________×__________= Force:
A) Mas and Velocity
B) Mass and Acceleration
C) Weight and Velocity
D) Weight and Heat
Answer: B
Q016) The weight of an object falling freely under the gravity is __________:
A) Maximum
B) Minimum
C) Constant
D) Variable
Answer: C
Q017) If a toy car of 300 gm runs at a speed of 10 m/s, then the momentum will be:
A) 3 Kg.m/s
B) 5 Kg.m/s
C) 14 Kg.m/s
D) 29 Kg.m/s
Answer: A
Q018) Which of the following places has the highest value of g:
A) Mt. Everest
B) The Equator
C) Somewhere in Antarctica
D) None of These
Answer: C
Q019) Which of the following radiation types has the most energy:
A) Visible Rays
B) Ultraviolet
C) X-rays
D) None of These
Answer: C
Q020) The pressure inside a soap bubble is:
A) Higher than the Atmospheric Pressure
B) Less than the Atmospheric Pressure
C) Equal Atmospheric Pressure
D) Half of the Atmospheric Pressure
Answer: A
