EASY
7th CBSE
IMPORTANT
Earn 100

A device in which falling sand is used as a timing device is called a water clock.

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Important Questions on Time and Motion

EASY
7th CBSE
IMPORTANT
When a body covers equal distances in equal intervals of time, it is said to describe uniform motion.
EASY
7th CBSE
IMPORTANT
A pendulum is a device that shows periodic motion.
EASY
7th CBSE
IMPORTANT
The time period of a pendulum depends on the length of the string used.
EASY
7th CBSE
IMPORTANT
The distance-time graph for an object showing non-uniform motion is a straight line.
MEDIUM
7th CBSE
IMPORTANT

Draw a distance-time graph for the motion of a car from the following data.

Time  Distance covered in kilometres
9:00 am 0
9:05 am 2
9:10 am 5
9:15 am 6
9:20 am  10

 

EASY
7th CBSE
IMPORTANT
Name the ancient instruments used to measure time.
MEDIUM
7th CBSE
IMPORTANT
Explain the working of the hourglass.
MEDIUM
7th CBSE
IMPORTANT
Why were the ancient methods of measuring time abandoned?