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6. Describe, in terms of particles, two differences between a solid and a liquid of the same substance - Edexcel - GCSE Physics Combined Science - Question 6 - 2021 - Paper 1
Question 6
6. Describe, in terms of particles, two differences between a solid and a liquid of the same substance. 1. 2. Figure 13 shows the dimensions of a solid block of c... show full transcript
Worked Solution & Example Answer:6. Describe, in terms of particles, two differences between a solid and a liquid of the same substance - Edexcel - GCSE Physics Combined Science - Question 6 - 2021 - Paper 1
Step 1
Describe, in terms of particles, two differences between a solid and a liquid of the same substance.
Answer
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In solids, particles are closely packed together, leading to a fixed shape, while in liquids, particles are further apart and can move freely, allowing liquids to take the shape of their container.
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The particles in a solid vibrate in fixed positions, whereas in a liquid, the particles can move past one another, resulting in greater fluidity.
Step 2
Step 3
Step 4
Plan how the student could confirm the teacher's statements, by determining the density of each of the strips as accurately as possible.
Answer
To determine the density of each metal strip:
- Measure the length and width of the strip using the ruler.
- Measure the thickness with a caliper for greater accuracy.
- Calculate the volume of the strip using the formula: Volume = length × width × thickness.
- Measure the mass of the strip using an electronic balance.
- Finally, compute the density using the formula: Density = mass/volume for each strip.