Question 1.
The unit of energy in MKS system is
A. Joule
B. Ohm
C. Erg
D. Volt
Ans: A. Joule
Question 2.
Which of the following pairs of physical quantities have the same dimensions?
Ans: C. Work and Energy
Question 3.
During uniform motion of an object along a straight line, its __ remains constant with time.
A. Acceleration
B. Deceleration
C. Force
D. Velocity
Ans: D. Velocity
Question 4.
If velocity is constant then acceleration is what?
A. Constant
B. Increasing
C. Zero
D. Infinite
Ans: C. Zero
Question 5.
One light year is equal to
A. 2 trillion miles
B. 6 trillion miles
C. 8 trillion miles
D. 9 trillion miles
Ans: B. 6 trillion miles
Question 6.
What is the fundamental unit of amount of a substance?
A. Mole
B. Candela
C. Kelvin
D. Meter
Ans: A. Mole
Question 7.
Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds
A. 5.5
B. 1
C. 11
D. 0.5
Ans: D. 0.5
Question 8.
Acceleration is the rate of change of
A. Speed
B. Velocity
C. Jerk
D. Jounce
Ans: B. Velocity
Question 9.
Parsec is the unit of
A. Distance
B. Time
C. Intensity of light
D. Magnetic line
Ans: A. Distance
Question 10.
The motion of a body that repeats itself after a regular interval of time is
A. A periodic motion
B. A simple harmonic motion
C. An aperiodic motion
D. An oscillatory motion
Ans: A. A periodic motion
Question 11.
Acceleration is
A. Inversely proportional to force
B. Inversely proportional to mass
C. Directly proportional to mass
D. Directly proportional to force
Ans: D. Directly proportional to force
Question 12.
Rate at which velocity changes over time?
A. Speed
B. Displacement
C. Acceleration
D. Jerk
Ans: C. Acceleration
Question 13.
One nanometer is equal to __ meters.
A. 10 raised to the power (-3)
B. 10 raised to the power (-6)
C. 10 raised to the power (-9)
D. 10 raised to the power (-12)
Ans: C. 10 raised to the power (-9)
Question 14.
Negative acceleration is in the opposite direction of:
A. Force
B. Distance
C. Velocity
D. Momentum
Ans: C. Velocity
Question 15.
A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?
A. 2.87 sec
B. 3.44 sec
C. 4.65 sec
D. 5.41 sec
Ans: B. 3.44 sec
Question 16.
Who is the first person to define speed
A. Galileo
B. Newton
C. Kepler
D. Ptolemy
Ans: A. Galileo
Question 17.
The Length of the Day is determined in
A. Length of the hours
B. Length of the year
C. Astronomical units
D. Solar terms
Ans: C. Astronomical units
Question 18.
If an object moves with constant velocity,
A. It must have constant speed
B. It must have constant direction
C. It must have constant speed in constant direction
D. None of the above
Ans: C. It must have constant speed in constant direction
Question 19.
The motion of a freely falling body is an example of __ motion.
A. Uniformly accelerated
B. Non-uniformly accelerated
C. Constant velocity
D. Constant speed
Ans: A. Uniformly accelerated
Question 20.
For an object, the state of rest is considered to be the state of __ speed.
A. Increasing
B. Decrease
C. Inverse
D.Zero
Ans: D.Zero
Physics GK MCQs all set
- Physics MCQs Set-1
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