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Free Physics Quiz Test 03 test contains multiple-choice questions with answers for competitive exam preparation. We have provided Free Physics online quizzes below which include questions related to different topics.
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Free Physics Quiz Test 03
Choose the correct meaning of Torque
(A) Turban
(B) Jest
(C) Turkish sash
(D) A force that tends to cause rotation
Scotograph is an instrument for
(A) Aiding the blind to write
(B) Magnifying small objects
(C) Testing the heartbeat
(D) None of these
Which from the following is true for “Sound�
(A) Sound cannot travel through a vacuum
(B) Sound cannot travel through gases
(C) Sound cannot travel through liquids
(D) Sound cannot travel through solids
The planet nearest to the sun is
(A) Jupiter
(B) Saturn
(C) Mercury
(D) Earth
Analog signal is measured in?
(A) Volts
(B) Pulses
(C) Hertz
(D) Watts
Bodies which usually fall from the sky to the Earth are called
(A) Planets
(B) Meteorites
(C) Both A and B
(D) None of these
Dynamite was invented by
(A) Alfred Nobel
(B) Thomas Edison
(C) William Davis
(D) None of These
The speed of light is
(A) 280,000 km/s
(B) 300,000 km/s
(C) 320,000 km/s
(D) None of these
Electric current is measured In
(A) Electric current is measured In
(B) Volts
(C) Watts
(D) Kilojoules
The uncharged particle in an atom is called
(A) Proton
(B) Electron
(C) Neutron
(D) Gamma
What is the circumference of Earth?
(A) 30,000 km
(B) 40.000 km (40,075 km)
(C) 50.000 km
(D) 20. 000 km
Light travels at———miles per second?
(A) 186,000
(B) 140,000
(C) 120,000
(D) 136,000
The times constant of a circuit containing capacitance C and resistance R is?
(A) RC
(B) 1/RC
(C) R/C
(D) None of these
The current through a conductor between two points is directly proportional to the voltage across the two points, is known as?
(A) Kirchhoff’s 1st law
(B) Kirchhoff’s 2nd law
(C) Ohm’s law
(D) None of these
It is possible to distinguish between transverse and longitudinal waves form the property of __________________?
(A) refraction
(B) polarization
(C) interference
(D) diffraction
If stretching force T of wire increases, then its frequency __________________?
(A) decreases
(B) increases
(C) remains the same
(D) any of above
The waves that require a material medium for their propagation are called__________________?
(A) matter waves
(B) electromagnetic waves
(C) carrier waves
(D) mechanical waves
Which phenomena can be applied to estimate the velocity of star with respect to earth ___________________?
(A) Dopplers effect
(B) Interference of waves
(C) Beats phenomena
(D) All of them
The speed of stationary waves in a stretched string are independent of___________________?
(A) Number of loopsTension in the string
(B) Tension in the string
(C) Point where string is plucked
(D) both A and C
The speed of sound in hydrogen is _____________ time than that in oxygen?
(A) Two times
(B) Three times
(C) Four time
(D) Six time
Newton estimated the speed of sound _____________________?
(A) 281m/sec
(B) 333m/sec
(C) 340m/sec
(D) all of the above
When the source of sound moves away form a stationary listener then ______________ occurs?
(A) an apparent increase in frequency
(B) an apparent decrease in frequency
(C) an apparent decrease in wavelength
(D) no apparent change in frequency
Silence zone takes place due to____________________?
(A) constructive interference
(B) destructive interference
(C) beats
(D) resonance
Ultrasonic have__________________?
(A) frequency in the audible range
(B) frequency is greater than 20 kHzfreq
(C) frequency lower than 20 Hz
(D) all of above
The velocity of sound in air would become double than its velocity at 0°C at temperature ?
(A) 313°C
(B) 586°C
(C) 819°C
(D) 1172°C
The velocity of sound is greatest in___________________?
(A) Water
(B) air
(C) copper
(D) ammonia
Velocity of sound in vacuum is ____________________?
(A) 332 ms-1
(B) 320 ms-1
(C) zero
(D) 224 ms-1
According to Newton sound travel in air under the conditions of_____________________?
(A) adiabatic
(B) isothermal
(C) isothermal
(D) isochoric
A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?
(A) always an node in formed
(B) always an antinode is formed
(C) neither node nor antinode is formed
(D) sometimes a node and sometimes an antinode is formed
Waves transmit ________________ from one place to another?
(A) energy
(B) mass
(C) Both A & B
(D) None of these
The trajectory (or path) of a projectile is_________________?
(A) straight line
(B) parabola
(C) hyperbola
(D) circle
The thrust on the rocket in the absence of gravitational force of attraction is__________________?
(A) constant
(B) not constant
(C) constant if the rate of ejected gases is constant
(D) constant for short range rocket.
Which of the following is not an example of projectile motion ?
(A) a gas filled ballon
(B) bullet fired from gun
(C) a football kicked
(D) a base ball shot
The acceleration in the rocket at any instant is proportional to the nth power of the velocity of the expelled gases. Where the value of n must be ?
(A) -1
(B) 1
(C) 2
(D) -2
During long jump, athlete runs before taking the jump. By doing so he__________________?
(A) provide him a larger inertia
(B) decreases his inertia
(C) decreases his momentum
(D) increases his momentum
Motorcycle safety helmet extends the time of collision hence decreasing the________________?
(A) chance of collision
(B) force acting
(C) velocity
(D) impulse
When a body moves in a straight line then its displacement coincides with__________________?
(A) distance
(B) force
(C) acceleration is zero
(D) Both A & B
Momentum depends upon__________________?
(A) force acts on the body
(B) mass of the body
(C) velocity of the body
(D) both mass and velocity of the body
2nd law of motion gives the definition of________________?
(A) force
(B) acceleration
(C) velocity
(D) both force and acceleration
Newtons laws do not hold good for particles_______________?
(A) at rest
(B) moving slowly
(C) move with high velocity
(D) move with velocity comparable to velocity of light
Which law of motion is also called law of inertia ?
(A) 1st law
(B) 2nd law
(C) 3rd law
(D) all of them
Slope of velocity time graph is_____________________?
(A) acceleration
(B) distance
(C) force
(D) momentum
When velocity time graph is a straight line parallel to time axis then__________________?
(A) acceleration is constant
(B) acceleration is variable
(C) acceleration is zero
(D) velocity is zero
A body is moving with uniform velocity. Its______________________?
(A) speed changes
(B) acceleration changes
(C) direction of motion changes
(D) displacement from origin changes
Why Ballistic missile fails in some circumstances of precision ?
(A) due to their shape
(B) due to air resistance
(C) due to angle of projection
(D) All of above
Time rate of change of momentum is equal to____________________?
(A) force
(B) impulse
(C) velocity
(D) Both A & C
At which angle the range of the projectile is maximum____________________?
(A) 45
(B) 60
(C) 30
(D) none
Flight of a rocket in the space is an example of______________________?
(A) second law of motion
(B) third law of motion
(C) first law of motion
(D) law of gravitation
Distance covered by a freely falling body in 2 seconds will be__________________?
(A) 4.9 m
(B) 19.6 m
(C) 44.1 m
(D) 39.2 m
What is the angle of projection for which the range and maximum height become equal ?
(A) tan-1 ¼
(B) tan-1 4
(C) tan-1 ½
(D) tan-1 2
Taking off rocket can be explained by __________________?
(A) 1st law of motion
(B) Law of conservation of momentum
(C) 2nd law of motion
(D) law of conservation of energy
Which shows the correct relation between time of flight T and maximum height H ?
(A) H=gT2/8
(B) H=8T2/g
(C) H=8g/T2
(D) H=gT2
What is the shape of velocity, time graph for constant acceleration ?
(A) straight inclined line.
(B) parabola
(C) inclined curve
(D) declined curve
When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________? 2 A. Centripetal force
(A) Centripetal force
(B) Gravitational force
(C) Their inertia
(D) Centrifugal force
The collision between two bodies be elastic if bodies are_________________?
(A) solid and soft
(B) soft and elastic
(C) solid and hard
(D) hard and elastic
Which of the following pair has same direction always ?
(A) force, displacement
(B) force, velocity
(C) force, acceleration
(D) force, momentum
The dimension of force is____________________?
(A) MLT-2
(B) ML2T-2
(C) ML2T2
(D) ML-2T-2
3rd law of motion explains______________________?
(A) effect of force
(B) existence of a force
(C) existence of pair of forces in nature
(D) existence of two forces
1st law of motion gives the definition of _________________________?
(A) rest
(B) force
(C) motion
(D) velocity
Inertia of an object is quantitative measure of its__________________?
(A) volume
(B) densty
(C) mass
(D) temperature
Instantaneous and average velocities become equal when body___________________?
(A) has zero acceleration
(B) has uniform acceleration
(C) has variable acceleration
(D) moves in a circle
Area under velocity time graph represent_____________________?
(A) force
(B) displacement
(C) distance
(D) acceleration
When body is in motion, ____________ always changes?
(A) its velocity
(B) its acceleration
(C) its position vector
(D) its momentum
linear expansion occurs in_________?
(A) solid
(B) liquid
(C) gas
(D) none
The co efficient of linear expansion is equal to__________?
(A) ΔL = αLΔT
(B) ΔL/LΔT
(C) LΔT/ΔL
(D) αLΔT-ΔL
The formula of inter-conversion of centigrade and Fahrenheit scale is___________?
(A) c-32/9
(B) f -32/9 =c/5
(C) f-32/9=c/9
(D) None of these
Name the branch of science which deals with the study of sound and sound waves?
(A) Aeronautics
(B) Acoustics
(C) Aerostatics
(D) Aetiology
Which one of the following is massless?
(A) Proton
(B) Electron
(C) Neutron
(D) Photon
The first book of Physics was written by__________?
(A) Kelvin
(B) Newton
(C) Aristotle
(D) Faraday
Study of living science relates with________?
(A) Physical science
(B) Organ science
(C) Biological science
(D) Just living science
The physics of moving charge particles is known as__________?
(A) Plasma physics
(B) Electro-static’s
(C) Electro-magnetic
(D) Electro-dynamics
The branch of physics which deals with the living things is called_________?
(A) biological sciences
(B) physical sciences
(C) cell systems
(D) elementary physics
The branch of Physics which deals with properties of gravitational?
(A) Field theory
(B) Acoustics
(C) Hydro dynamic
(D) Optics
The__________branch of Physics deals with nuclear particles such as neutrons, protons and nuclear?
(A) Solid State Physics
(B) Plasma Physics
(C) Nuclear Physics
(D) Particle Physics
The__________branch of Physics deals with nuclear particles such as neutrons, protons and nuclear?
(A) Solid State Physics
(B) Plasma Physics
(C) Nuclear Physics
(D) Particle Physics
The Branch of Physics deals with highly energetic ions is called__________?
(A) Elementary articles
(B) Elementary articles
(C) Ionic physics
(D) Plasma physics
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________?
(A) Biology
(B) Physics
(C) Information technology
(D) Chemistry
Physics is one of the branches of___________?
(A) Physical sciences
(B) Biological Sciences
(C) Social sciences
(D) Life sciences branch
The branch of science which deals with the properties of matter and energy is called__________?
(A) Biology
(B) Geography
(C) Physics
(D) Chemistry
The SI unit of Heat is________?
(A) Watt
(B) Volt
(C) Joule
(D) Newton
The SI unit of Heat is________?
(A) joule
(B) watt
(C) volt
(D) None of them