Fundamental Units

Q.

Which of the following is/are derived quantity/quantities?

1. Area

2. Volume

3. Mass

4. Density

Q.

Which of the following is a fundamental quantity?

1. Pressure

2. Area

3. Volume

4. Temperature

Q.

Metal block has $2m$ length, $1.5m$ breadth and thickness of $0.5m$. Calculate the volume of the block?

1. $5m^3$

2. $1.5m^3$

3. $2.5m^3$

4. $1m^2$

Q. Pick the derived physical quantity.

1. Electric current
2. Mass
3. Volume
4. Length

Q.

A dozen shirt buttons of the same size were arranged one above the other. Their total height was $2cm4mm$. What is the thickness of one button?

Q.

In ancient India, small length measurements used were an 'angul' (finger) or a mutthi (fist). These methods were stopped because of the need for a standard unit.

1. Size of the body parts varies from human to human.

2. Traders requested not to use these methods.

Q. To express all the physical quantities in SI units, we need

1. five fundamental units
2. seven fundamental units
3. two fundamental units
4. three fundamental units

Q. Choose the correct pairs of fundamental quantities and their corresponding units.

1. Time
2. Electric current
3. Temperature
4. kelvin
5. ampere
6. second
7. candela
8. Luminous intensity

Q.

The thickness of a dozen coins on a metre scale was found to be $18cm$. What is the thickness of one coin?

1. $1.2cm$
2. $1.8mm$
3. $15mm$
4. $15cm$

Q. Which of the following is not a fundamental SI unit?

1. metre
2. gram
3. second
4. candela

Q.

Which of the following is a fundamental unit?

1. Volume

2. Candela

3. Area

4. Density

Q. Speed is a fundamental unit of measurement.

1. False
2. True

Q.

Which of the following is correct?

1. 50 CM

2. 50 N

3. 50 M

4. 50 sec