Solar power producing heat
4 marks · NormalDescribe how you could set up a simple experiment to show that a black container heats up faster in sunlight than a white one.
List the apparatus you would use for this experiment.
Describe what you would do in this experiment.
State what you would measure to compare the heating effect.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(a) — · must show two containers (one black, one white), water, thermometers
(b) — · must show fill containers with same amount of water, place both in sunlight, measure temperature regularly
(c) — · must show temperature change of water in each container over time
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Lists suitable apparatus (e.g., two containers, one black and one white, water, thermometers).
M1 (b) · 1 mark · Describes setting up both containers with equal volumes of water, in sunlight.
M2 (b) · 1 mark · Mentions measuring and recording temperature in each container over time.
A1 (c) · 1 mark · States measuring and comparing the temperature change of water in each container.
Worked solution
a) Apparatus: Two containers (one black, one white), water, two thermometers.
b) Fill both containers with the same amount of water. Place both in the same sunny place. Insert a thermometer into each. Measure the temperature of the water in each container at regular time intervals (e.g. every 5 minutes).
c) Measure and compare the temperature increase in each container.