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SI Units and Measurements Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What are the base SI units for length, mass, and time?

a)

mm, lb, hr

b)

cm, g, h

c)

m, kg, s

d)

km, ton, min

2.

Which of the following is NOT a SI Unit?

a)

Seconds

b)

Miles

c)

Kilogram

d)

Meter

3.

Convert 5000 meters to kilometers.

a)

50 kilometers

b)

5 kilometers

c)

0.5 kilometers

d)

500 kilometers

4.

Convert 2.5 kilograms to grams.

a)

2000 grams

b)

2500 grams

c)

2.5 grams

d)

25 grams

5.

What are the prefixes used in SI units for 10^3, 10^-3, and 10^6?

a)

kilo, milli, mega

b)

hecto, nano, peta

c)

micro, deci, tera

d)

centi, deca, giga

6.

What is the difference between scalar and vector quantities?

a)

Scalar quantities have only magnitude, while vector quantities have both magnitude and direction.

b)

Scalar quantities have both magnitude and direction, while vector quantities have only magnitude.

c)

Scalar quantities have only magnitude, while vector quantities have only speed.

d)

Scalar quantities have only direction, while vector quantities have only magnitude.

7.

Give an example of a scalar quantity and a vector quantity.

a)

Scalar quantity: Volume, Vector quantity: Acceleration

b)

Scalar quantity: Mass, Vector quantity: Force

c)

Scalar quantity: Temperature, Vector quantity: Velocity

d)

Scalar quantity: Speed, Vector quantity: Distance

8.

Which one of the following is a derived quantity?

a)
Length
b)
Velocity
c)
Mass
d)
Time
9.

Which quantity is a base quantity?

a)

area

b)

speed

c)

temperature

d)

weight

10.

A length of a living thing is 70 nm. What is the length expressed in metres (m)?

a)

70 x 109 m

b)

70 x 106 m

c)

70 x 10-6 m

d)

70 x 10-9 m

11.

A pendulum clock is found to be slow. To set the clock right,

a)

increase the pendulum length.

b)

decrease the pendulum length.

c)

increase its amplitude of oscillation.

d)

decrease its amplitude of oscillation.

12.

Which order shows units of energy in the correct order of increasing size?

a)

J \rightarrow kJ \rightarrow mJ \rightarrow nJ

b)

mJ \rightarrow nJ \rightarrow J \rightarrow kJ

c)

nJ \rightarrow mJ \rightarrow J \rightarrow kJ

d)

MJ \rightarrow J \rightarrow kJ \rightarrow GJ

13.

What is the order of magnitude of the diameter of the Earth?

a)

1 x 103 m

b)

1 x 105 m

c)

1 x107 m

d)

1 x 109 m

14.

Which is a scalar quantity?

a)

displacement

b)

force

c)

speed

d)

velocity

15.

Which of the following are examples for basic quantities?

a)

Temperature, Current, Time, Mass

b)

Length, velocity, mass, time

c)

Current, acceleration, pressure, luminous intensity

d)

Frequency, Area, Length, Time

16.

Which of the following pairs of physical quantity and SI unit is correct?

a)

Mass - SI unit: Gram

b)

Electric current -SI unit: Volt

c)

Temperature -SI unit: Kelvin

d)

Time - SI unit: Hour

17.

Find the correct scientific notation for 0.00000089 mm

a)

8.9 x 10-8 mm

b)

8.9 x 10-7 mm

c)

8.9 x 108 mm

d)

8.9 x 107 mm

18.

Which combination shows derived physical quantities in measurements

a)

Area, mass, time

b)

Area, energy, density

c)

Length, density, current

d)

Density, volume, temperature

19.

SI stands for _________________

a)

Sports illustrated

b)

Scientific Notation

c)

Instructional System (of measurements)

d)

International System (of measurement)

20.

The SI unit consists of _____________ fundamental units.

a)

seven

b)

six

c)

three

d)

two