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CBSE Questions for Class 7 Physics Motion And Time Quiz 6 - MCQExams.com
CBSE
Class 7 Physics
Motion And Time
Quiz 6
Which of the following correctly defines periodic motion?
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A motion with unequal acceleration
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A motion that repeats itself after equal intervals of time
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A motion with equal speed but varied distances
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None of these
Explanation
A motion that repeats itself after equal intervals of time is known as periodic motion. For example, a swing in motion.
What can help decide which object is moving fast or slow?
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The distance
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The time
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Both $$A$$ and $$B$$
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None of these
Explanation
The distance moved by objects in a given interval of time can help us to decide which one is faster or slower, hence option $$C$$ is correct.
Which of the following is a type of motion along straight line?
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Motion of wheels
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Motion of a swing
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Soldiers in a march past
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Bullock cart moving on a straight road
Explanation
Soldiers in a march past
Bullock cart moving on a straight road
The hands of an athlete in a race is a type of circular motion.
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True
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False
Explanation
The statement is False.
The hands of an athlete in a race is a type of periodic motion.
The motion of a spinning top is rotational motion.
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True
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False
Explanation
The statement is True.
If vehicles are moving on a road in the same direction, we can easily tell which one of them is moving faster than the other.
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True
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False
Explanation
Yes, if vehicles are moving on a road in the same direction, we can easily tell which one of them is moving faster than the other.
One day, hare and tortoise decided to race against each other. They have to cover the distance of $$10\ km$$. Hare decides to use a bicycle and the tortoise decides to use a car. They both started at the same time.
Who will win the race?
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Hare
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Tortoise
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Both reach at the same time
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Insufficient data
Explanation
The tortoise wins the race because the car moves at a faster pace than the bicycle.
Identify the type of motion.
Motion of a pendulum.
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circular
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Along a straight line
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rotational
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periodic
Explanation
The to and fro motion of a simple pendulum is an example of a periodic motion.
If Boojho covers a certain distance in one hour and Paheli covers the same distance in two hours, who travels with a higher speed?
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Boojho
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Paheli
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Both of them
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Can't say
Explanation
Boojho travels with a higher speed as he has covered same distance in lesser time with respect to Paheli.
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