IGCSEPhysicsCambridge (CIE)Exam Questions1. Motion, Forces & EnergyMass, Weight & Density

Mass, Weight & Density (Cambridge (CIE) IGCSE Physics): Exam Questions

Exam code: 0625 & 0972

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Mass, Weight & Density

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1
1 mark

Which of the quantities below is weight an example of?

  •  Field strength

  • Acceleration

  • Mass

  • Force

Choose your answer

2
1 mark

Which of the following statements about mass or weight is true?

  • weight is measured in kilograms

  • mass = weight x gravitational field strength

  •  weight is measured in Newtons

  • mass is a force

Choose your answer

3
1 mark

Extended tier only

How is the weight of an object defined?

  • The force of the ground pushing on an object

  • A measure of the quantity of matter of an object at rest to the observer

  • The mass per unit volume of an object

  • The gravitational force acting on an object with mass

Choose your answer

4
1 mark

Which row in the table gives the correct units for mass and for weight?

 

Mass

Weight

A

kg

kg

B

N

kg

C

N

N

D

kg

N

    Choose your answer

    5
    1 mark

    Which of the following quantities is measured in kilograms?

    • weight

    • mass

    • pressure

    • density

    Choose your answer

    6
    1 mark

    A student is given four objects, a mass balance and a metre ruler.

    q6-easy-mcq-1-3--mass-and-weight-cie-igcse-physics

    Which of the objects can he determine the density of , using only the metre ruler and the mass balance? 

    • Bolt , aluminium and plastic

    • Wood, bolt and plastic

    • Aluminium , wood and plastic

    • Aluminium , wood and bolt

    Choose your answer

    7
    1 mark

    Which statement about the mass and the weight of an object is correct?

    • They are both affected by changes in the acceleration of free fall.

    •  They are both forces.

    • They have different units.

    • Weight is calculated by dividing mass by the acceleration of free fall

    Choose your answer

    8
    1 mark

    The gravitational field strength on the Moon is 1.6 N/kg. 

    An astronaut has a mass of 75 kg. 

    What is the weight of the astronaut on the Moon?

    •  47 N

    • 75 N

    • 120 N

    • 740 N

    Choose your answer

    9
    Sme Calculator
    1 mark

    Which unit is a unit of weight?

    • kilogram

    • kilojoule

    • kilometre

    • kilonewton

    Choose your answer

    10
    Sme Calculator
    1 mark

    A shopkeeper pours rice into a dish that hangs from a spring balance. He records the reading.

    image

     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?

    • density

    • temperature

    • volume

    • weight

    Choose your answer

    11
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    1 mark

    A student determines the density of an irregularly shaped stone. The stone is slowly lowered into a measuring cylinder partly filled with water. 

    image

    Which other apparatus does the student need to calculate the density of the irregularly shaped stone?

    • a balance

    • a thermometer

    • a metre rule

    • a stop-watch

    Choose your answer

    12
    Sme Calculator
    1 mark

    An object has a mass of 4.0 text  kg end text on Earth, where the acceleration of free fall is 9.8 text  m/s end text squared.

    The object is taken to the Moon, where the acceleration of free fall is 1.6 text  m/s end text squared.

    Which row gives the correct mass and weight of the object on the Moon?

    mass / kg

    weight / N

    A

    2.5

    4.0

    B

    4.0

    6.4

    C

    4.0

    39

    D

    6.4

    39

      Choose your answer

      1
      1 mark

      Which piece of equipment is used to measure the mass of an object?

      • A burette

      • A balance

      • A thermometer

      • A trundle wheel

      Choose your answer

      2
      1 mark

      A baker uses a balance to weigh out some ingredients to make bread. She weighs out some white flour, then she weighs out some wholemeal flour. She notices that the reading on the balance is the same for both types of flour.

      The baker can conclude that the two flours have the same:

      • volume

      • density

      • weight

      • internal energy

      Choose your answer

      3
      1 mark

      The diagram shows a measuring cylinder containing a liquid , and that same measuring cylinder when it is empty.

      q3-medium-mcq-1-3--mass-and-weight-cie-igcse-physics

      What is the density of the liquid?

      • 6.30 g/cm3

      • 3.00 g/cm3

      • 0.33 g/cm3

      • 0.16 g/cm3

      Choose your answer

      4
      1 mark

      A geologist wants to determine the density of the object shown below.

      q4-medium-mcq-1-3--mass-and-weight-cie-igcse-physics

      What needs to be known in order to calculate its density ?

      • The radius of the base of the cone and the weight of the cone.

      • The surface area of the base of the cone and the height of the cone.

      • The volume of the cone and the mass of the cone.

      • The height of the cone and the mass of the cone.

      Choose your answer

      5
      1 mark

      Two beams have the same rectangular cross section, but one is longer than the other.

      Both beams are made from the same material.

      q5-medium-mcq-1-3--mass-and-weight-cie-igcse-physics

      Which quantity is the same in both beams?

      • The volume

      • The weight

      • The mass

      • The density

      Choose your answer

      6
      1 mark

      A student wants to measure the density of a piece of rock. She starts by measuring its mass ,  and finds that it is 2500 g.

      Next she puts 500 cm3 of water into a large measuring cylinder , then adds the rock. The level in the measuring cylinder rises to 800 cm3.

      What is the density of the rock?

      • 8.33 g/cm3

      • 3.125 g/cm3

      • 0.12 g/cm3

      • 0.32 g/cm3

      Choose your answer

      7
      1 mark

      Some unknown liquid in a beaker has a mass of 200 g and a volume of 230 cm3.

      The density of water is 1.0 g/cm3

      How does the density of the unknown liquid compare with the density of water?

      • Its density is greater than the density of water

      • Its density is less than the density of water

      • Its density is the same as the density of water

      • With the information given, it is impossible to tell.

      Choose your answer

      8
      1 mark

      The two diagrams below show a measuring cylinder.

      In the diagram on the left, the measuring cylinder is empty. In the diagram on the right, the measuring cylinder contains a liquid.

      q8-medium-mcq-1-3--mass-and-weight-cie-igcse-physics

      What is the density of the liquid?

      • 0.20 g/cm3

      • 5.00 g/cm3

      • 0.28 g/cm3

      • 3.57 g/cm3

      Choose your answer

      9
      1 mark

      A lump of butter has a volume of 350 cm3 and a mass of 319 g.

      What is the density of the butter?

      • 31 g/cm3

      • 1.10 g/cm3

      • 1.00 g/cm3

      • 0.911 g/cm3

      Choose your answer

      10
      1 mark

      A cube of side length 5 cm is placed on a mass balance.

      q10-medium-mcq-1-3--mass-and-weight-cie-igcse-physics

      What is the density of the cube?

      • 1.0 g/cm3

      • 0.20 g/cm3

      • 5.12 g/cm3

      • 4.88 g/cm3

      Choose your answer

      11
      1 mark

      An astronaut has a mass of 80 kg on the Earth.

      The gravitational field strength on the Moon is 1.6 N/kg.

      What is the weight of the astronaut on the Moon?

      • 50 kg

      • 128 N

      • 800 N

      • 80 kg

      Choose your answer

      12
      1 mark

      The density of a block of wood is 2.7 g/cm3 and a mass of 583.8 g.

      What is its volume?

      • 0.5 cm3

      • 21.6 cm3

      • 216.2 cm3

      • 1574.9 cm3

      Choose your answer

      13
      1 mark

      Two objects P and Q are placed in a beaker containing a liquid. 

      Object P floats in the liquid and object Q sinks.

      Which row for the densities of object P, object Q and the liquid is possible?

       

      density of object P g/cm3

      density of object Q g/cm3

      density of liquid

      g/cm3

      A

      1.2

      0.6

      0.8

      B

      1.2

      1.4

      1.0

      C

      11.3

      8.9

      13.6

      D

      11.3

      19.3

      13.6

        Choose your answer

        14
        1 mark

         A measuring cylinder contains 30 cm3 of a liquid

        Diagram of a measuring cylinder on a balance. The cylinder contains 25 cm³ of liquid. The balance is labelled, showing a weight of the liquid.

        Some more of the liquid is added until the liquid level reaches the 50 cm3 mark. 

        The reading on the balance increases by 30 g. 

        What is the density of the liquid?

        • 0.60 g/cm3

        • 0.67 g/cm3

        • 1.5 g/cm3

        • 1.7 g/cm3

        Choose your answer

        15
        Sme Calculator
        1 mark

        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

          Choose your answer

          16
          1 mark

          The table shows the mass and the volume of two objects, P and Q. The objects are placed in a tank of water which has a density of 1.0 text  g/cm end text cubed.

          object

          mass / g

          volume / cm3

          P

          15

          5

          Q

          15

          20

          Which statement is correct?

          • Object P floats because its density is greater than the density of water.

          • Object P sinks because its mass is equal to the mass of object Q.

          • Object Q sinks because its volume is greater than the volume of object P.

          • Object Q floats because its density is less than the density of water.

          Choose your answer

          1
          1 mark

          A teacher has a hot cup of tea.

          Some of the liquid in the cup evaporates.

          Choose the line from the table below that correctly describes what happens to the mass and the weight of the tea in the cup.

           

          Mass

          Weight

          A

          increases

          decreases

          B

          increases

          increases

          C

          decreases

          decreases

          D

          decreases

          increases

            Choose your answer

            2
            1 mark

            A dummy, named Starman, dressed in a white racing suit, was launched into space by Elon Musk’s first Falcon Heavy rocket. Starman was sent on a journey towards Mars.

            Compared with being on the Earth’s surface, how do Starman’s mass and weight change when he is on his journey to Mars?

             

            Mass

            Weight

            A

            stays the same

            decreases

            B

            stays the same

            stays the same

            C

            decreases

            decreases

            D

            decreases

            stays the same

              Choose your answer

              3
              1 mark

              The diagram shows a ball of bread dough before and after it has been compressed (squashed) so its volume decreases.

              Assume no material leaves the dough during compression.

              q3-hard-mcq-1-3--mass-and-weight-cie-igcse-physics

              What happens to the mass and the weight of the dough when it is compressed?

               

              Mass

              Weight

              A

              stays the same

              decreases

              B

              stays the same

              stays the same

              C

              decreases

              decreases

              D

              decreases

              stays the same

                Choose your answer

                4
                1 mark

                An astronaut buys a 5.0 kg tin of Quality Street chocolates on Earth. She takes that 5.0 kg tin of Quality Street chocolate to the Moon. What is the mass of the tin of Quality Street chocolate on the Moon?

                • More than 5.0 kg

                • Less than 5.0 kg, but more than 0.0 kg

                • 5.0 kg

                • 0.0 kg

                Choose your answer

                5
                1 mark

                An object is put on the left hand side of the balance, shown below, in order to determine its weight.

                Masses are added to the right hand side until it balances.

                The table below shows the effect of various weight combinations.

                q5-hard-mcq-1-3--mass-and-weight-cie-igcse-physics

                Masses on the right hand side

                Effect

                100g, 50g, 50g, 20g, 5g, 2g

                Balance tips slightly to the right

                200g, 10g, 10g, 5g

                Balance tips slightly to the left

                Which of the masses below is most likely to be the mass of the object?

                • 226 g

                • 230 g

                • 220 g

                • 225 g

                Choose your answer

                6
                1 mark

                A cheesemonger uses a newton meter to measure the weight of a block of cheese.

                The cheese has a weight of 5.0 N

                What is the approximate mass of the cheese?

                • 0.05 kg

                • 0.5 kg

                • 5 kg

                • 50 kg

                Choose your answer

                7
                1 mark

                A block of an unknown material is shown in the diagram.

                It's mass is 500 g.

                q7-hard-mcq-1-3--mass-and-weight-cie-igcse-physics

                What is the density of the block?

                • fraction numerator 7 space cross times space 15 space cross times space 7 over denominator 500 end fraction straight g divided by cm cubed

                • fraction numerator 7 cross times 15 over denominator 500 space cross times 8 end fraction space straight g divided by cm cubed

                • fraction numerator 500 over denominator 7 space cross times 15 cross times 8 end fraction straight g divided by cm cubed

                • fraction numerator 500 space cross times space 7 over denominator 8 space cross times 15 end fraction space straight g divided by cm cubed

                Choose your answer

                8
                1 mark

                A teacher wants to measure the density of a wooden cylinder.

                She measures the radius, height and mass of the cylinder.

                Which of the measurements that she has taken are required to calculate the density of the cylinder?

                • Radius, height and mass

                • Radius and height only

                • Mass and height only

                • Mass only

                Choose your answer

                9
                1 mark

                The masses and volumes of four different objects are given in the table.

                Which of the objects has the lowest density?

                 

                Mass / g

                 Volume / cm3

                A

                100

                100

                B

                150

                50

                C

                85

                17

                D

                10

                20

                  Choose your answer

                  10
                  1 mark

                  A block is shown in the diagram. It has a mass of m.

                  q10-hard-mcq-1-3--mass-and-weight-cie-igcse-physics

                  Which expression, below, could be used to calculate the density of the block?

                  • m space cross times space x space cross times space y space cross times space z

                  • x space cross times space z space cross times space y

                  • fraction numerator x space cross times space y space cross times space z over denominator m end fraction

                  • fraction numerator m over denominator x cross times y cross times z end fraction

                  Choose your answer

                  11
                  1 mark

                  Four blocks, W, X , Y and Z are shown below.

                  q11-hard-mcq-1-3--mass-and-weight-cie-igcse-physics

                  Which of the two blocks have the same density?

                  • W and X

                  • W and Y

                  • Y and Z

                  • W and Z

                  Choose your answer

                  12
                  1 mark

                  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

                    Choose your answer