Last updated on August 30th, 2023 at 10:36 pm
Answer:-
The length of the needle begins at 3.0 cm
So the needle’s actual length is (33.1 – 3.0) cm = 30.1 cm.
Q. – Give two examples of periodic motion.
Answer:-
Two examples of periodic motion are pendulum clock motion and swing motion.
Motion and Measurement of distances notes Extra Question Answers
Q. -What is cubit?
Answer:-
A cubit as the length from the elbow to the fingertips was used in ancient Egypt.
Q. – When a metric system is created and who made it?
Answer:-
The metric system was developed by the French in 1790 as a standard unit of measurement.
Define:-
Rectilinear motion?
Answer:-
When an object moves in a straight line. This is referred to as rectilinear motion.
Periodic motion?
Answer:-
When an object’s motion is repeated after a period of time. This is referred to as periodic motion.
What are the things we used to measure in ancient time?
Answer:-
People used the length of a foot, the width of a finger, and the distance of a step as units of measurement in ancient times.
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