Advertisements
Advertisements
Question
State two characteristics of a unit.
Solution
Two characteristics of a unit are:
- It should be of convenient size.
- It must be universally accepted, i. e. its value must remain the same at all places and at all times.
APPEARS IN
RELATED QUESTIONS
Match the following:
| Column A | Column B |
| 1.Volume of a liquid | 1. kg `m^-3` |
| 2. Area of a leaf | 2. `m^3` |
| 3. S.I. unit of volume | 3. graph paper |
| 4. S.I. unit of density | 4. m `s^-1` |
| 5. S.I.unit of speed | 5. measuring cylinder |
What is measurement? How is a measurement expressed?
Express in second :
3 minute 15 second
State if the following statement is true or false:
The symbol used for a unit is always written in capital letters.
Answer the following in detail.
Explain by giving two examples of why the measurement of a physical quantity is expressed as a combination of a numeral and a unit.
Answer the following in a word or two or in a sentence.
Write the formula for finding the average of a given set of observations.
Answer the following in detail.
What do you understand by the term volume?
Answer the following in detail.
Explain in detail why railways and airlines use the 24-hour clock format.
Give a reason for the following.
Measuring units are standardized.
Solve the following numerical problem.
20 one – rupee coins are placed one above the other. If their total height is 32 mm, find the thickness of one coin.
