A student wants to calculate the density of the two objects shown in Figure 18 - AQA - GCSE Physics - Question 12 - 2018 - Paper 1
Question 12
A student wants to calculate the density of the two objects shown in Figure 18.
Figure 18
Metal cube
Small statue
Describe the methods that the student should us... show full transcript
Worked Solution & Example Answer:A student wants to calculate the density of the two objects shown in Figure 18 - AQA - GCSE Physics - Question 12 - 2018 - Paper 1
Step 1
Measure mass using a balance
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Answer
The student should first use a balance to measure the mass of each object. It is important to ensure that the balance is calibrated correctly to obtain accurate measurements.
Step 2
Calculate density using p = m / V
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Answer
Next, the student will apply the formula for density, which is:
ho = \frac{m}{V}$$ where $
ho$ is the density, $m$ is the mass, and $V$ is the volume. The volume will be determined using different methods for each object.
Step 3
Metal cube - measure volume
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To find the volume of the metal cube, the student should measure the length of one side using a ruler. Since the cube's volume can be calculated using the formula:
V=a3
where a is the length of a side.
Step 4
Small statue - measure volume by water displacement
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For the small statue, the student should immerse it in a graduated cylinder partially filled with water. By measuring the volume of water displaced, the student can find the volume of the statue. This volume can then be used in the density formula.
