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Solved CBSE Class 7 Science Chapter 13 Assertion and Reason Questions – Motion and Time. Here we (Net Explanations) working very hard to providing you with the Important Assertion Reason Questions for this Chapter.
Assertion and Reason Questions Class 7 Science Chapter 13 Motion and Time
1.) Assertion- a speed is distance time, the basic unit of speed is m/s.
Reason- we can write 50km and not 50kms or 8cm and not 8cms.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- option A
2.) Assertion- the distance time graph for the motion of an object moving with a constant speed is not a straight line.
Reason- an object moving along a straight line covers equal distance in equal intervals of time it is said to be uniform motion.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- option D
3.) Assertion- periodic motion of a pendulum has been used to make clocks and watches.
Reason- pendulum of given length does not takes the same time to complete one oscillation.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.
Ans- option c
4.) Assertion- speed of the object can’t decide which one is moving pestle that the other.
Reason- acceleration decides the object is move faster.
a) Assertion and reason both are correct statement and reason is correct explanation for assertion.
b) Assertion and reason both are correct statement and reason is not correct explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement AND reason is also wrong statement.
Ans- option d
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