O LevelPhysicsCambridgeTopic Questions1. Motion, Forces & Energy1.4 Density

Density (Cambridge O Level Physics)

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1
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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

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1
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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

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2
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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

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3
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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

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4
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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

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5
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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

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1
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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

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2
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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.

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3
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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

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4
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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

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5
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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.

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6
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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

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7
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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

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8
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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

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9
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The density of a block of wood is 2.7 g/cm3 and a mass of 583.3 g.

What is its volume?

  • 0.5 cm3

  • 21.6 cm3

  • 216.0 cm3

  • 1574.9 cm3

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10
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Water is added to a measuring cylinder containing 100 cm3 of liquid paraffin. 

(The density of paraffin is 0.80 g / cm3 and that of the water is 1.0 g / cm3.) 

As the water is added, the level of the paraffin rises to 150 cm3. The paraffin and water do not mix. 

What finally is the total mass of liquid in the measuring cylinder?

  • 130 g

  • 140 g 

  • 167 g

  • 175 g

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