The speed of an object moving in a certain direction is known as which term in scientific terminology?
A. velocity
B. speed
C. acceleration
D. time
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Find the acceleration (in m/s2 ) produced in a body of mass 3 kg when a force of 6 N is applied on it.
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Starting from a fixed position, Sony catches a speed of 60 ms-1 in 30s by bicycle. Calculate the acceleration of the bicycle?
A. 0.2 ms-2
B. 2 ms-2
C. 0.2 ms2
D. 2 ms2
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A man is sitting in a train which is moving with a velocity of 60 km/h. His speed with respect to the train is
A. 3 10 m/s
B. 60 m/s
C. infinite
D. zero
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Average speed and average velocity indicate the speed of the object:
A. at a particular stage of time
B. long distance
C. in short distance
D. during the given interval
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A bus travels at a speed of 50 km/h to go from its origin of its destination at a distance of 300 km and travels at a speed of 60 km/h to return to the origin. What is the average speed of the bus?
A. 54.55 km/h
B. 55 km/h
C. 55.55 km/h
D. 54 km/h
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The moment of inertia of a body does not depend upon its
A. axis of rotation
B. angular velocity
C. form of mass
D. distribution of mass
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Which of the following statements is false
A. When a bus stops suddenly, a passenger sitting in the bus is jerked backwards
B. When a person jumps from a moving bus, he falls
C. When a rotating fan stops, it rotates for some time
D. When a bus stops suddenly, a passenger sitting in the bus gets a shock in the front
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The rate of change of momentum of a body is equal to the resultant
A. energy
B. power
C. force
D. impulse
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The speed of a bus on a crowded road is an example of . . . . . . . .
A. uneven
B. uniform
C. circular
D. linear
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Rocket launching is based on which law?
A. Newton's third law of motion
B. Newton's first law of motion
C. Thermodynamic law
D. All of Newton's laws of motion
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Which of the following examples explains Newton's third law of motion?
A. Rocket launching
B. On the sudden move of the bus, the passengers get jerked backwards
C. When we stop pedaling, the cycle starts to slow down
D. While catching a fast approaching cricket ball, the fielder slowly moves his hand backwards with the moving ball
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The instantaneous velocity and average velocity are equal when the object . . . . . . . .
A. has uniform acceleration
B. moving in a circle
C. has variable acceleration
D. has zero acceleration
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Definition of force can be stated from
A. Newton's First Law of Motion
B. Newton's Second Law of Motion
C. Newton's Third Law of Motion
D. Newton's Law of Gravitation
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A brick is thrown vertically from an aircraft flying 2 km above the earth. The brick will fall with a
A. constant speed
B. constant velocity
C. constant acceleration
D. constant speed for some time then with constant acceleration as it means the earth
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A person is standing on a frictionless horizontal ground. How can he move by a certain distance on this ground?
A. By sneezing
B. By jumping
C. By running
D. By rolling
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When a sailor jumps in the forward direction, the boat drifts backwards. Which law of Newton represent the example-
A. Second law of motion
B. First and second law of motion
C. Third law of motion
D. First law of motion
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Negative acceleration is opposite to which of the following direction?
A. velocity
B. momentum
C. force
D. distance
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Ladder is an example of
A. class-I lever
B. class-II lever
C. class-III lever
D. inclined plane
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When an object is moving at the same speed, what will be its acceleration?
A. negative
B. positive
C. zero
D. variable
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