Mass and weight — Paper 1 · IGCSE Physics (9-1) 0972

4 Diagram 1 shows a beam balance. A beaker with a wire loop balances the standard masses. The beaker is then removed and hung from a spring. The spring extends by 5.0 cm, as in diagram 2. diagram 1 diagram 2 beam beaker with spring standard balance wire loop masses attached beaker with wire loop attached The experiment is repeated with the same apparatus on the Moon, where the acceleration of free fall is less than on Earth. Which statement describes what happens on the Moon? A The beam balance is balanced and the spring extends by 5.0 cm. B The beam balance is balanced and the spring extends by less than 5.0 cm. C The right-hand balance pan is higher and the spring extends by 5.0 cm. D The right-hand balance pan is higher and the spring extends by less than 5.0 cm.

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Answer: B

This question in 0972/11 May/June 2018

5 An empty beaker is placed on a top-pan balance. Some water is now poured into the beaker. 0.062 kg 0.106 kg empty beaker beaker + water What is the weight of the water? A 0.044 kg B 0.168 kg C 0.0044 N D 0.44 N

1 marks

Answer: D

This question in 0972/11 May/June 2018

14 A woman has a weight of 600 N. She stands on a horizontal floor. The area of her feet in contact with the floor is 0.050 m2. What is the pressure she exerts on the floor? A 1.2 × 103 N / m2 B 2.4 × 103 N / m2 C 1.2 × 104 N / m2 D 2.4 × 104 N / m2

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Answer: C

This question in 0972/11 May/June 2018

4 An arrow travels horizontally in a straight line at constant speed. In which direction does the weight act? C direction of motion B D A ground

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Answer: A

This question in 0972/11 May/June 2019

5 Two rectangular blocks consist of different materials. Four different methods are suggested to compare the two masses. 1 Compare the accelerations with which they fall freely. 2 Compare the values of their lengths × breadths × heights. 3 Hang each in turn from the same spring. Compare the extensions. 4 Place one in the right-hand pan of a beam balance and the other in the left-hand pan. Which methods give a comparison of the two masses? A 1, 2 and 3 B 1 and 2 only C 3 and 4 only D 4 only

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Answer: C

This question in 0972/11 May/June 2019

7 A mass of 20 kg is held stationary by a rope passing over a frictionless pulley. pulley T 20 kg What is the tension T in the rope? A 10 kg B 20 kg C 100 N D 200 N

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Answer: D

This question in 0972/11 May/June 2019

4 Which quantity is a force due to a gravitational field? A density B mass C weight D volume

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Answer: C

This question in 0972/11 Oct/Nov 2019

4 Two metal blocks P and Q have identical dimensions. They hang on identical spring balances. N N 0 0 1 1 2 2 3 3 4 4 5 5 6 6 P Q Which statement about P and Q is correct? A They have different volumes and different weights. B They have different volumes and equal weights. C They have equal volumes and equal weights. D They have equal volumes and different weights.

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Answer: D

This question in 0972/11 May/June 2020

5 A mass of 6.0 kg rests on the surface of a planet. On this planet, g = 20 N / kg. What is the weight of the object? A 0.30 N B 0.60 N C 60 N D 120 N

1 marks

Answer: D

This question in 0972/11 May/June 2020

4 Two metal blocks P and Q have identical dimensions. They hang on identical spring balances. N N 0 0 1 1 2 2 3 3 4 4 5 5 6 6 P Q Which statement about P and Q is correct? A They have different volumes and different weights. B They have different volumes and equal weights. C They have equal volumes and equal weights. D They have equal volumes and different weights.

1 marks

Answer: D

This question in 0972/12 May/June 2020

5 A space probe is taken from the Earth to Mars. The force of gravity on the surface of Mars is less than the force of gravity on the surface of the Earth. How do the weight and the mass of a space probe on the surface of Mars compare to their values when the probe is on the surface of the Earth? weight on Mars mass on Mars A decreased decreased B decreased unchanged C unchanged decreased D unchanged unchanged

1 marks

Answer: B

This question in 0972/12 May/June 2020

6 Water has a density of 1000 kg / m3. A rectangular swimming pool has an average depth of 1.6 m. The length of the pool is 25 m. The width of the pool is 10 m. What is the mass of the water in the swimming pool? A 2.5 kg B 400 kg C 400 000 kg D 800 000 kg

1 marks

Answer: C

This question in 0972/12 May/June 2020

7 The diagram shows an extension–load graph for a spring. 10.0 extension / cm 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 load / N An empty can of weight 3.0 N is suspended from the spring. Liquid is poured into the can until the extension is 8.0 cm. What is the weight of the liquid? A 4.0 N B 10.0 N C 13.0 N D 16.0 N

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Answer: C

This question in 0972/12 May/June 2020

4 A student compares the weights of different objects. Which apparatus does he use? A balance B measuring cylinder C stop-watch D thermometer

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Answer: A

This question in 0972/11 Oct/Nov 2020

5 Which quantity is weight an example of? A acceleration B force C mass D pressure

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Answer: B

This question in 0972/11 Oct/Nov 2020

12 A rectangular marble block has dimensions 1 m by 1 m by 5 m and weighs 125 000 N. The marble block is stored with the long side resting on the ground, as in diagram 1. diagram 1 diagram 2 What is the change in the pressure on the ground due to the block when the block is stored as in diagram 2 rather than diagram 1? A a decrease of 25 000 Pa B an increase of 100 000 Pa C an increase of 125 000 Pa D no change

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2020

3 The gravitational field strength on the Moon is smaller than that on the Earth. A scientist examines a rock which has been brought back from the Moon. He measures three quantities. 1 the density of the rock 2 the mass of the rock 3 the weight of the rock Which quantities are the same size on the surface of the Earth and on the surface of the Moon? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

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Answer: A

This question in 0972/11 Oct/Nov 2021

4 A spring balance operates by the compression of a spring. It has been calibrated on the Earth in grams. A beam balance operates by balancing standard masses against the unknown mass to be measured. The same unknown mass is measured with each balance on the Earth and on the Moon. The gravitational field strength on the Earth is greater than that on the Moon. How would the measurements on the Earth compare with those on the Moon? spring balance measurements beam balance measurements A larger on the Earth than on the Moon larger on the Earth than on the Moon B larger on the Earth than on the Moon same on the Earth as on the Moon C same on the Earth as on the Moon larger on the Earth than on the Moon D same on the Earth as on the Moon same on the Earth as on the Moon

1 marks

Answer: B

This question in 0972/11 May/June 2022

11 Liquid of mass 92 kg is contained in a rectangular tank. The area of the base of the tank is 0.23 m2. What is the pressure exerted by the liquid on the base of the tank? A 2.5  10– 4 N / m2 B 2.5  10– 3 N / m2 C 400 N / m2 D 4000 N / m2

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Answer: D

This question in 0972/11 May/June 2022

4 An object is moved from point X to point Y. The acceleration of free fall at X is different from that at Y. Which statement about the object at Y is correct? A Both its mass and its weight are different from those at X. B Both its mass and its weight are the same as those at X. C Its mass is the same as at X but its weight is different. D Its weight is the same as at X but its mass is different.

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Answer: C

This question in 0972/12 May/June 2022

1 Which unit is a unit of weight? A kilogram B kilojoule C kilometre D kilonewton

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Answer: D

This question in 0972/11 May/June 2023

4 A space rocket travels to the Moon. The acceleration of free fall is greater on the Earth than it is on the Moon. How do the mass and weight of the space rocket on the Moon compare with their values on the Earth? mass on the Moon weight on the Moon A less than on the Earth same as on the Earth B less than on the Earth more than on the Earth C same as on the Earth less than on the Earth D same as on the Earth more than on the Earth

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Answer: C

This question in 0972/11 May/June 2023

5 A shopkeeper pours rice into a dish that hangs from a spring balance. He records the reading. 0 spring balance 6 1 5 2 4 3 rice dish A customer buys some pasta. The shopkeeper notices that the reading on the spring balance, with just pasta in the dish, is the same as it was with just rice in the dish. Which quantity must be the same for the rice and for the pasta? A density B temperature C volume D weight

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Answer: D

This question in 0972/11 May/June 2023

4 Which statement about mass or weight is not correct? A Masses can be compared using a balance. B Mass is a force. C Weights can be compared using a balance. D Weight is a force.

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Answer: B

This question in 0972/12 May/June 2023

3 An object weighs 19 N on a planet where the acceleration of free fall is 3.8 m / s2. What is the mass of the object? A 0.20 kg B 1.9 kg C 5.0 kg D 72 kg

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Answer: C

This question in 0972/11 Oct/Nov 2023

4 An object is suspended from a spring balance on the Earth. The same object is suspended from the same spring balance on another planet. 0 0 1 1 2 2 3 3 4 4 reading on reading on Earth other planet Which statement explains the difference between the two readings? A Both the mass and the weight of the object are greater on the other planet. B The mass of the object is greater on the other planet than on the Earth, but the weight is unchanged. C The spring stretches more easily when on the other planet. D The weight of the object is greater on the other planet than on the Earth, but the mass is unchanged.

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Answer: D

This question in 0972/11 Oct/Nov 2023

11 When a diver swims down from the surface of the water to a depth of 10 m, the pressure experienced increases from 100 000 N / m2 to 200 000 N / m2. Which statement explains this increase in pressure? A The density of the water increases with depth. B The gravitational field strength increases with depth. C The weight of water above the diver increases with depth. D Water cannot be compressed.

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Answer: C

This question in 0972/11 Oct/Nov 2023

2 The diagram shows two objects, X and Y, suspended from identical springs. The extension of each spring is different. object X object Y Which row compares the mass and the weight of the two objects? mass weight A both objects have the same mass both objects have the same weight B both objects have the same mass the weight of X is less than the weight of Y C the mass of X is less than the mass of Y both objects have the same weight D the mass of X is less than the mass of Y the weight of X is less than the weight of Y

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Answer: D

This question in 0972/11 May/June 2024

3 Which row shows the gravitational field strength on the Earth and the definition of velocity? gravitational field definition of velocity strength on the Earth A 9.8 kg / N the change in the speed B 9.8 N / kg the change in the speed C 9.8 kg / N the speed in a given direction D 9.8 N / kg the speed in a given direction

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Answer: D

This question in 0972/12 May/June 2024

4 Which statement about the weight of an object is correct? A The weight of an object is the gravitational force per unit mass. B The weight of an object is the gravitational force on an object. C The weight is zero when the object is falling at constant speed in the Earth’s atmosphere. D The weight is zero when the object is in orbit around the Earth.

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Answer: B

This question in 0972/12 May/June 2024

7 A box of mass 2.0 kg and weight 20 N is carried to the top of some stairs. 1.2 m box 1.8 m How is the work done against gravity on the box calculated? A 2.0  1.8 B 20  1.2 C 2.0  1.2 D 20  1.2  1.8

1 marks

Answer: B

This question in 0972/12 May/June 2024

3 An object begins to fall close to the Earth’s surface. Air resistance can be ignored. Which statement about the object’s acceleration is correct? A The acceleration is constant. B The acceleration decreases as the body falls. C The acceleration increases as the body falls. D The acceleration is zero.

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Answer: A

This question in 0972/11 Oct/Nov 2024

4 Which quantity is equal to gravitational force? A gravitational field strength  mass B gravitational field strength  weight C mass per unit weight D weight per unit mass

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Answer: A

This question in 0972/11 Oct/Nov 2024

4 Which row gives the correct weight for the mass shown when it is at the Earth’s surface? mass / kg weight / N A 2.00 19.6 B 10.0 1.02 C 10.0 9.80 D 20.0 2.04

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Answer: A

This question in 0972/11 May/June 2025

10 Which pair of changes, applied at the same time, always increases the pressure that a brick exerts on the ground? area of brick in weight of brick contact with ground A increase increase B increase decrease C decrease increase D decrease decrease

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Answer: B

This question in 0972/11 May/June 2025

4 Which quantity is an example of a force? A density B mass C volume D weight

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Answer: D

This question in 0972/12 May/June 2025

13 Which quantity does not change when there is an increase in temperature? A the density of a steel block B the diameter of the hole in a metal nut C the length of an iron rod D the mass of a metal coin

1 marks

Answer: D

This question in 0972/12 May/June 2025