Free Printable Lower Secondary: Mass, Weight and Density

Worksheets

Lower Secondary: Mass, Weight and Density

Total questions: 15

Worksheet time: 21mins

Name

Class

Date

What is the SI unit of mass?

(a)

What is the approximate value of gravitational field strength on Earth?

10 N/kg

20 N/kg

100 N/kg

1000 N/kg

A man has a mass of 80 kg on Earth. What is his mass on the Moon?

80 kg

80 N

128 kg

800 kg

hich of the following represent the relationship between the mass of an object, its weight and the gravitational field strength.

$weight=mass+g$

$weight=mass\times g$

$weight=mass\div g$

$weight=mass-g$

Which of the formula is used to calculate the density of an object.

$\rho=m\times vol$

$\rho=\frac{m}{vol}$

$\rho=m+vol$

$\rho=m-vol$

Oil floats on water because

oil is denser than water.

oil is less denser than water.

oil and water both have the same density.

Define the term mass of an object.

4 lines

The mass of a steel hammer is 5 kg. What is its weight?

(gravitational field strength = 10 N/kg)

ANS: (a) N

State the changes to its mass and weight, if there is any, when the same steel hammer is brought from Earth to the Moon.

4 lines

10.

The weight of a rock on the Earth is 80 N.

What is the weight of the rock on the Moon?

(gravitational field strength on Earth and Moon is 10 N/kg and 1.6 N/kg respectively)

ANS: (a) N

11.

Calculate the density of the diamond cube.

ANS: (a) g/cm³

12.

Which of the three substance is the least dense?

Foam

Diamond

Iron

13.

A rectangular block of wood has length 6.0 cm, width 5.0 cm and height 10.0 cm. Its mass is 150 g. What is the density of the wood?

0.2 g/cm³

0.5 g/cm³

1.0 g/cm³

2.0 g/cm³

14.

An object X floats in liquid R but sinks in liquid S, as shown in the diagrams below. Choose the correct statement from the following:

Liquid R is more dense than liquid S.

Liquid R is less dense than liquid S.

Liquid R is as dense as liquid S.

Object X is more dense than liquid R.

15.

The density of a liquid

(i) is calculated by dividing its mass by its volume.

(ii) depends on the temperature of the liquid.

(iii) depends on the atmospheric pressure acting on the liquid.

Which is true?

Only (i) and (ii)

Only (ii) and (iii)

Only (i) and (iii)

All (i), (ii) and (iii)

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Lower Secondary: Mass, Weight and Density

Total questions: 15

Worksheet time: 21mins

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