1. (i) Complete each box in Figure 1 to show how particles are arranged in a solid, liquid and gas - Edexcel - GCSE Physics - Question 1 - 2016 - Paper 1
Question 1
1. (i) 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.
(ii) Which row... show full transcript
Worked Solution & Example Answer:1. (i) Complete each box in Figure 1 to show how particles are arranged in a solid, liquid and gas - Edexcel - GCSE Physics - Question 1 - 2016 - Paper 1
Step 1
Complete each box in Figure 1 to show how particles are arranged in a solid, liquid and gas.
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Answer
In the solid box, draw particles in a regular arrangement with all particles touching. In the liquid box, represent the particles in an irregular arrangement, with most particles touching. In the gas box, illustrate the particles in a random arrangement with them spaced further apart compared to the liquid.
Step 2
Which row of the table is correct for water compared to steam?
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Answer
The correct answer is row B: the density of water is smaller, and the water molecules are further apart.
Step 3
Calculate the density of the block.
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Answer
To find the density, use the formula:
density = rac{mass}{volume} = rac{100g}{13cm^3}
l Therefore, the density of the block is approximately 7.69 g/cm³.
