Rainbow 🌈 mind map Time
Definition: Time is measured by periodic events, or events that occur at regular intervals.
Quantity: Fundamental quantity
Units: CGS- s,, MKS - s , FPS - s , SI- s , common units: minute, hour and mean solar day.
Relations: 1 min = 60 s
1 h = 60 min = 3600 s
One mean solar day = 24 h = 86400 s
In 12 hour clock system: AM and PM are written after the time to indicate whether it is between midnight and noon (AM) , or between noon and midnight ( PM).
In 24 hour clock system: Time is always shown by 4 digits. 00.00 to 11.59 denote AM and 12 00 to 24.59 denote PM.
Devices to measure time:
- Common clock
- Watch
- Stopwatch and stop clock
Time intervals: It is the difference in time between two events
Rainbow 🌈 MCQ of time
1.Time is measured by
Explain:- Time is measured by periodic events or events that occur at regular intervals.
2. Time is
Explain:- Time is Fundamental quantity.
3. S.I unit of time
Explain:- S.I unit of time is second.
4.one mean solar day = 24 h = _______ s
- A) 1
Explain:- one mean solar day = 24 h = 86400 s
5.The time 19.30 means ______ P.M
Explain:- The time 19.30 means 7.30 P.M
6.Name device used to measure time
Explain:-Stop watch , stop clock and wrist watch all are used to measure time.
7. Time intervals is
Explain:- Time intervals is difference in time between two events.
