Free Printable UNITS AND DIMENSIONS

1.

Unit of angular acceleration is SI system:

a)

N kg^-1

b)

m sec^-2

c)

rad sec^-2

d)

km kg^-1

2.

Length cannot be measured by

a)

fermi

b)

debye

c)

micron

d)

light year

3.

the dimensions of energy are

a)

$M\ L^{-1}\ T\ ^{-2}$

b)

$M\ L^{-2}\ T\ ^{-2}$

c)

$M\ L^2\ T\ ^{-2}$

d)

$M\ L^2\ T\ ^{-1}$

4.

the following equation is dimensionally

$v^2\ =v_0^2\ +2\ a\ d$
Where :
v is the velocity
a is the acceleration
d is the distance

a)

Correct

b)

incorrect

5.

the mass per unit area has the dimensions of ......

a)

$M\ L^{-2}$

b)

$M\ L^{-1}$

c)

$M$

d)

$M^{\ -1}\ L^{ }$

6.

Which one is not a dimension?

a)

Length

b)

Mass

c)

Time

d)

Kelvin

7.

Which one is a unit?

a)

Feet

b)

Second

c)

Square meter

d)

All of the mentioned

8.

When quantities with units are added or subtracted, they need to be expressed in the _____________ unit.

a)

Different

b)

Same

c)

Derived

d)

Fundamental

9.

The unit of length SI (metric) system is

a)

cm

b)

m

c)

in

d)

yd

10.

The below given distance units are arranged in an order of

nm, mm, dm, m, Km

a)

Smallest to largest

b)

Largest to smallest

c)

Not arranged in any correct order

d)

None of the mentioned

11.

Which of the following is not a base unit?

a)

meter

b)

newton

c)

kilogram

d)

second

12.

Which of the following is a derived unit?

a)

metre

b)

second

c)

kilogram

d)

joule

13.

1 nanometer equals to

a)

10 $-9$ m

b)

10 $-3$ m

c)

10 $-6$ m

d)

10 $-1$ m

14.

A quantity which can be _________ is called physical quantity

a)

Depends

b)

Measured

c)

Not measured

d)

None of these

15.

_____ is a standard which is used for the measurement of physical quantity

a)

Numerical value

b)

Unit

c)

Area

d)

Volume

16.

Physical quantity =______* unit

a)

Numerical value

b)

Length

c)

Area

d)

Density

17.

Derived units are the units of ______ physical quantities which are expressed in terms of fundamental units

a)

Fundamental

b)

Derived

c)

Base

d)

Supplementary

18.

Physical quantities which are independent of other physical quantities are called as

a)

Derived physical quantities

b)

Fundamental physical quantities

c)

Supplementary physically quantities

d)

None of these

19.

The unit of plane angle is

a)

Steredian

b)

Radian

c)

Mol

d)

Candela

20.

The unit of speed is a

a)

Fundamental unit

b)

Derived unit

c)

Supplementary unit

d)

Both fundamental &derived unit

21.

The unit of temperature is

a)

Kilogram

b)

Second

c)

Meter

d)

Kelvin

22.

There are______ fundamental quantities

a)

6

b)

5

c)

9

d)

7

23.

The symbol for amount of substance is

a)

mol

b)

Mole

c)

Candela

d)

All the above

24.

The unit of length in F. P. S system is

a)

Pound

b)

Foot

c)

Second

d)

Meter

25.

The unit of time in S. I system is

a)

Kilogram

b)

Gram

c)

Second

d)

Meter

26.

The unit of time in F.P.S system is

a)

Kilogram

b)

Second

c)

Meter

d)

Centimeter

27.

What is the DIMENSION of length?

a)

[M]

b)

[L]

c)

[T]

d)

[l]

28.

What is the DIMENSION of acceleration?

a)

L³

b)

[L/T]

c)

[L/T²]

d)

LT

29.

The physical quantity having units of mass is

a)

Inertia

b)

Density

c)

Momentum

d)

Volume

30.

A light year is a unit for

a)

Time

b)

speed of light

c)

length

d)

year

UNITS AND DIMENSIONS

Total questions: 30

Worksheet time: 14mins

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