Plz give correct answer for the questions attached below.
Answers
Answer:
1. Unit is a quantity of a constant magnitude used to measure other quantities of the same nature.
2. Atop watches can be used more conviniently for measuring time period, in ordinary watches we need to see starting time and the ending time then find the difference. Whereas in stopwatches we need to push start button and after measuring the time period we need to stop the counter.
3. The property of pendulum that makes it suitable for use in clocks is that the time period of the clock doesn't changes with weight of the bob the only affecting factor is lenght of the string and gravity(which is nearly consatant over the world).
4. Time period of a pendulum is the time taken by a pendulum to complete one oscillation or to return to the point from where it started from is called time period.
5. To and Fro motion of a body is called oscillation.
6. When the velocity of and object is constant.
7.
100 m
50 Kg
20 s