Three states of matter are solid, liquid and gas - Edexcel - GCSE Physics - Question 1 - 2016 - Paper 1
Question 1
Three states of matter are solid, liquid and gas.
(a) (i) Particles in each state of matter move in different ways.
Draw a line from each state of matter to the de... show full transcript
Worked Solution & Example Answer:Three states of matter are solid, liquid and gas - Edexcel - GCSE Physics - Question 1 - 2016 - Paper 1
Step 1
Particles in each state of matter move in different ways.
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Answer
Solid: Particles move randomly and are close together.
Liquid: Particles do not move.
Gas: Particles move around quickly and are far apart.
Step 2
Complete the sentence by putting a cross (X) in the box next to your answer.
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Answer
When a gas is cooled, most of the particles move slower.
Step 3
When 20 °C is changed to kelvin it becomes
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Answer
When converting 20 °C to kelvin:
T(K)=T(°C)+273T(K)=20+273=293
Thus, the answer is C 293 K.
Step 4
Calculate the new temperature of the air in the balloon in kelvin.
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Answer
We use the formula:
Tz=V2V1T1
Where:
V1=0.25m3
T1=293K
V2=0.10m3
Calculating:
Tz=0.10m30.25m3×293K=732.5K
The new temperature of the air in the balloon is 732.5 K.
Step 5
Suggest one way of increasing the volume of the balloon.
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Answer
One way of increasing the volume of the balloon is by heating/warming the balloon.
