A student investigated the angle of a ramp affects the force required to hold a trolley stationary on the ramp - AQA - GCSE Physics - Question 4 - 2021 - Paper 1
Question 4
A student investigated the angle of a ramp affects the force required to hold a trolley stationary on the ramp.
Figure 10 shows the equipment used.
Figure 11 shows... show full transcript
Worked Solution & Example Answer:A student investigated the angle of a ramp affects the force required to hold a trolley stationary on the ramp - AQA - GCSE Physics - Question 4 - 2021 - Paper 1
Step 1
Measure the angle Y in Figure 10
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Answer
The angle Y can be measured using a protractor, and the correct value is found to be 30 degrees.
Step 2
What type of error is shown on the newtonmeter in Figure 11?
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Answer
The type of error shown is a zero error, wherein the newtonmeter reads a value when it should read zero.
Step 3
How can this error be corrected after the measurements have been taken?
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Answer
To correct this error, you should subtract 0.5 N from each measurement taken with the newtonmeter.
Step 4
Plot the missing results from Table 2 on Figure 12
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Answer
To plot the missing results, first calculate the force in newtons for the given angles. The missing values are:
For 5 degrees: 0.9 N
For 10 degrees: 1.7 N
For 15 degrees: 2.6 N
For 20 degrees: 3.4 N
For 25 degrees: 4.2 N
For 30 degrees: 5.0 N. These values should then be plotted on the graph accordingly.
Step 5
Explain one advantage of using the long ramp compared with using the short ramp
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Answer
The advantage of using the long ramp is that it has a smaller angle, leading to a gentler slope. This requires less force to hold the wheelchair stationary on the ramp, making it easier for the person to maneuver.
Step 6
Calculate the work done to move the wheelchair up the ramp
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Answer
Using the formula work done = force × distance, the work done to move the wheelchair up the ramp is calculated as follows:
