A student investigated how different insulating materials affect the energy transfer from bottles of very hot water - AQA - GCSE Physics - Question 5 - 2023 - Paper 1
Question 5
A student investigated how different insulating materials affect the energy transfer from bottles of very hot water.
Figure 6 shows some of the equipment used.
Fig... show full transcript
Worked Solution & Example Answer:A student investigated how different insulating materials affect the energy transfer from bottles of very hot water - AQA - GCSE Physics - Question 5 - 2023 - Paper 1
Step 1
Why did the student use the funnel?
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The student used the funnel as a safety precaution to prevent any spillage of very hot water.
Step 2
Why did the student not use insulation for bottle A?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Bottle A was the control in the experiment, and it needed to be free from insulation to accurately compare the results with other bottles.
Step 3
What equipment could the student use to measure time?
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The student could measure time using a stopwatch or a digital clock, which allows for precise measurement of elapsed time.
Step 4
Explain two ways that the student could improve the investigation to be able to make a valid conclusion.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The student could use the same starting temperature for each experiment to ensure a fair comparison of energy transfer.
It would be beneficial to maintain a consistent volume of water in each bottle to minimize variations in thermal energy transfer that might affect the results.
Step 5
What type of graph should the student have plotted?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The student should have plotted a bar graph to represent categorical data regarding different insulating materials, as it allows for a clear comparison of energy transfer.
