Derived Quantities

Q. What is the speed of light

Q.

$1m{s}^{-1}$ =______ kmph.

1. 3.4

2. 4

3. 3.8

4. 3.6

Q. The SI unit of volume is ________.

1. m
2. $m^{-2}$
3. $m^3$
4. $m^{-3}$

Q. A derived quantity necessarily has:

1. Magnitude
2. Unit
3. Direction
4. (a) and (b) above.

Q.

Explain fundamental and derived physical quantities?

Q. A derived quantity necessarily has:

1. Unit
2. Direction
3. (a) and (b) above.
4. Magnitude

Q. Volume is a derived quantity.

1. False
2. True

Q. A derived quantity is a physical quantity that is expressed in terms of one or more fundamental quantities.

1. True
2. False

Q.

A unitless quantity

1. never has a nonzero dimension

2. always has a nonzero dimension

3. may have a nonzero dimension

4. does not exist

Q.

Which of the following are NOT fundamental physical quantities?

1. area

2. time

3. speed

4. mass