Complete each box in Figure 1 to show how particles are arranged in a solid, liquid and gas - Edexcel - GCSE Physics Combined Science - Question 1 - 2016 - Paper 1
Question 1
Complete each box in Figure 1 to show how particles are arranged in a solid, liquid and gas.
One particle in each box has been drawn for you.
Figure 1
(ii) Which r... show full transcript
Worked Solution & Example Answer:Complete each box in Figure 1 to show how particles are arranged in a solid, liquid and gas - Edexcel - GCSE Physics Combined Science - Question 1 - 2016 - Paper 1
Step 1
Complete the solid box in Figure 1
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Answer
In the solid box, draw particles in a regular arrangement, all touching each other.
Step 2
Complete the liquid box in Figure 1
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Answer
In the liquid box, draw particles in an irregular arrangement with most particles touching but able to move past each other.
Step 3
Complete the gas box in Figure 1
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Answer
In the gas box, draw particles randomly arranged, spaced apart compared to liquid.
Step 4
Which row of the table is correct for water compared to steam?
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Answer
The correct answer is A: The density of water is bigger; the water molecules are closer together.
Step 5
Calculate the density of the block.
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Answer
The density of the block can be calculated using the formula:
density = \frac{mass}{volume}
= \frac{100g}{13 cm³}
= 7.69 g/cm³.
