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Q 1.
If the velocity of the body doesn't change with time, it's acceleration is?
Ans.
Zero.
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Q 2.
1 km is equal to?
Ans.
1000 m.
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Q 3.
When a body covers equal distance in equal intervals of time it has?
Ans.
Uniform speed.
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Q 4.
A straight line in speed time graph is referred to
Ans.
Uniform motion.
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Q 5.
The meter that is used to measure speed of the vehicle?
Ans.
Speedometer.
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Q 6.
Blinking of eyes is?
Ans.
Not measurable action.
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Q 7.
Rate of change in position of a body is called?
Ans.
Speed.
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Q 8.
A bike travels 54 km in 90 minutes. The speed of the bike is?
Ans.
10 m/s.
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Q 9.
A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum?
Ans.
1.6
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Q 10.
Motion of a train on a straight bridge?
Ans.
Straight line.
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Q 11.
Motion of a hammer of an electric bell?
Ans.
Oscillatory motion.
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Q 12.
Motion of a child on a see- saw?
Ans.
Oscillatory motion.
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Q 13.
Motion of a child in a merry go around?
Ans.
Circular motion.
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Q 14.
Motion of a horse pulling a cart on a straight line?
Ans.
Straight line.
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Q 15.
What is the motion of your hand while running?
Ans.
Oscillatory motion.
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Q 16.
The meter that measures the distance moved by the vehicle is called?
Ans.
Odometer.
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Q 17.
What is the basic unit of time?
Ans.
Second.
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Q 18.
A man covers with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for next 15 minutes. The total distance covered by the car is?
Ans.
25km.
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Q 19.
Name the basic unit of speed?
Ans.
m/s.
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Q 20.
Formula to calculate distance covered?
Ans.
Speed × Time.
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