Cambridge IGCSE · Physics (0625)

Mass and weight: Practice Questions

5 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Mass and weight.

8 questions16 marksFree, no account

Question 1

1 mark

Which statement correctly defines the weight of an object?

Question 2

1 mark

An object is suspended from a spring balance on Earth, where the gravitational field strength is \(9.8\text{ N/kg}\). The balance shows a reading of \(49\text{ N}\). The object is then taken to the Moon, where the gravitational field strength is approximately \(1.6\text{ N/kg}\).

What are the mass and the weight of the object on the Moon?

Question 3

1 mark

An object has a weight of \(600\text{ N}\) on Earth, where the gravitational field strength is \(10\text{ N/kg}\). The object is transported to Planet X, where the gravitational field strength is \(4.0\text{ N/kg}\).

What are the mass and weight of the object on Planet X?

Question 4

1 mark

Which statement defines the mass of an object?

Question 5

1 mark

An astronaut has a mass of \( 80\text{ kg} \). The gravitational field strength on the Moon is \( 1.6\text{ N/kg} \).
What is the weight of the astronaut on the Moon?

Question 6

3 marks

An object weighs \(49\text{ N}\) on Earth, where the gravitational field strength \(g\) is \(9.8\text{ m/s}^2\). Calculate the mass of the object and state whether this mass would change if the object were moved to the Moon.

Write your answer out first, then check it against the worked solution.

Question 7

3 marks

A sample of rock has a mass of \(2.5\text{ kg}\). The gravitational field strength \(g\) on Earth is \(9.8\text{ N/kg}\).

(a) Define the term weight.
(b) Calculate the weight of the rock on Earth.
(c) On a different planet, the weight of the same rock is \(40\text{ N}\). Calculate the gravitational field strength of this planet.

Write your answer out first, then check it against the worked solution.

Question 8

5 marks

An astronaut has a mass of \(75 \text{ kg}\).

(a) Define mass and weight, and state the SI unit for each.

(b) Calculate the astronaut's weight on Earth, where the gravitational field strength \(g\) is \(9.8 \text{ N/kg}\).

(c) The gravitational field strength on the Moon is approximately \(1.6 \text{ N/kg}\). Calculate the astronaut's weight on the Moon.

(d) Explain why the astronaut's mass remains constant while their weight changes when they travel from Earth to the Moon.

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers Marked Back to the notes

Want more questions like these? Get a fresh set on this topic, marked as you go.

Practise More