Test Your Science Knowledge with This Mind-Blowing Quiz

Question 1

Which of the following is the SI unit for the area?

Accepted Answer

m²

Answer

m

Answer

cm²

Answer

m³

Question 2

How many mm² are there in 1 cm²?

Accepted Answer

100

Answer

10

Answer

1000

Answer

10000

Question 3

Choose the option that shows the greatest mass.

Accepted Answer

10000 g

Answer

1 kg

Answer

1000 mg

Answer

10000 mg

Question 4

Sani wants to buy new shoes. He has to measure his feet to find out his correct shoe size. Which physical quantity of his feet should he measure?

Accepted Answer

Length

Answer

Thickness

Answer

Area

Answer

Volume

Question 5

How many milligrams (mg) are in 0.5 kilograms (kg)?

Accepted Answer

500000 mg

Answer

50 mg

Answer

500 mg

Answer

5000 mg

Question 6

A student wishes to measure the diameter of a pencil down to an accuracy of 0.0001 m. Which measuring instrument should he use?

Accepted Answer

Vernier calipers

Answer

Metre rule

Answer

Thread and metre rule

Answer

Measuring cylinder

Question 7

Which instrument is best used to measure the circumference of a basketball?

Accepted Answer

Paper measuring tape

Answer

Wooden ruler

Answer

Vernier calipers

Answer

Measuring cylinder

Question 8

A test tube measured 155 mm in length. Which of the following is also the correct length?

Accepted Answer

0.155m

Answer

1.55 mm

Answer

1.55 cm

Answer

15.5 m

Question 9

Which instrument should you use to measure the length of a copper wire that is about 12.5 cm long?

Accepted Answer

Metre rule

Answer

Vernier calipers

Answer

Measuring cylinder

Answer

Spring balance

Question 10

Which instrument is most suitable to measure the surface area of a blade of grass?

Accepted Answer

Graph paper

Answer

Measuring tape

Answer

Ruler

Answer

Eureka can

Question 11

What is the most appropriate use for vernier calipers?

Accepted Answer

To measure the diameter of a test tube.

Answer

To measure the height of a man.

Answer

To measure the diameter of a string.

Answer

To measure the length of a book.

Question 12

Which of the following statements about mass is true?

Accepted Answer

Mass varies according to the amount of matter in the object.

Answer

Mass varies according to location.

Answer

Mass varies according to the shape of the object.

Answer

Mass and weight are equal and interchangeable.

Question 13

Which of the following reasons explains why alcohol thermometers are used to measure low temperatures?

Accepted Answer

Alcohol has a low melting point.

Answer

Alcohol can be seen clearly compared to mercury.

Answer

Alcohol has a high boiling point.

Answer

Alcohol does not evaporate easily.

Question 14

Which of the following is the most accurate time-measuring instrument?

Accepted Answer

Electronic stopwatch

Answer

Mechanical stopwatch

Answer

Hour glass

Answer

Digital watch

Question 15

Jason wants to find out if his classmates with longer legs can run faster than those with shorter legs. What measurements should he make to carry out his investigation?

Accepted Answer

The length of his classmates’ legs and their running speed.

Answer

The weight of his classmates and their running speed.

Answer

The height of his classmates and their running speed.

Answer

The length of his classmates’ feet and their running speed.

Question 16

What is the volume of a sphere that has a diameter of 6 cm?

Accepted Answer

36πcm³

Answer

6πcm³

Answer

9πcm³

Answer

12πcm³

Question 17

12 marbles are dropped into a measuring cylinder which contains 14.2 cm³ of water. The final reading taken is 18.5 cm³. Which among the following options shows the volume of each marble?

Accepted Answer

0.36 cm³

Answer

1.18 cm³

Answer

1.54 cm³

Answer

2.73 cm³

Question 18

How many millimeters are 4.5 metres?

Accepted Answer

4500 mm

Answer

450 mm

Answer

0.45 mm

Answer

45000 mm

Question 19

How many seconds is 2.5 minutes?

Accepted Answer

150 s

Answer

250 s

Answer

125 s

Answer

175 s

Question 20

How many kilojoules are 3600000 Joules?

Accepted Answer

3600 kJ

Answer

360 kJ

Answer

36 kJ

Answer

3.6 kJ

Question 21

Why do you think an ice cube doesn’t float in the air?

Accepted Answer

An ice cube is denser than air

Answer

Water is less dense than air

Answer

Air is denser than ice

Answer

Air has more pressure

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