science
Grade-7
Easy
Question
Which of the following is true for a body undergoing a non-uniform motion?
a. It covers unequal distances in equal intervals of time.
b. It covers equal distances in unequal intervals of time.
c. It travels in the same direction with the same speed throughout the motion
d. Its rate of motion is measured by a physical quantity called average speed.
- Only a and b are correct
- Only c is correct
- All of those are correct except c
- Only d is correct
Hint:
All of those are correct except c
The correct answer is: All of those are correct except c
In non-uniform motion, speed of the object changes along the straight line in unequal manner either unequal distance in equal time interval or vice versa and we calculate average speed in case of non-uniform motion.
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