Paper 1 H - SAMPLE SET 1 Q4 Answers
4) A student investigated how much energy from the Sun was incident on the Earth’s surface at her location.
She put an insulated pan of water in direct sunlight and measured the time it took for the temperature of the water to increase by 0.6 °C.
The apparatus she used is shown in Figure 3.
She put an insulated pan of water in direct sunlight and measured the time it took for the temperature of the water to increase by 0.6 °C.
The apparatus she used is shown in Figure 3.
4.1) Choose the most appropriate resolution for the thermometer used by the student. [1 mark]
Tick one box.
Tick one box.
The energy transferred to the water was 1050 J.
The time taken for the water temperature to increase by 0.6 °C was 5 minutes.
The specific heat capacity of water is 4200 J/kg °C.
4.2) Write down the equation which links energy transferred, power and time. [1 mark]
4.3) Calculate the mean power supplied by the Sun to the water in the pan. [2 marks]
The time taken for the water temperature to increase by 0.6 °C was 5 minutes.
The specific heat capacity of water is 4200 J/kg °C.
4.2) Write down the equation which links energy transferred, power and time. [1 mark]
4.3) Calculate the mean power supplied by the Sun to the water in the pan. [2 marks]
Average power = ______________ W
4.4) Calculate the mass of water the student used in her investigation.
Use the correct equation from the Physics Equation Sheet. [3 marks]
Use the correct equation from the Physics Equation Sheet. [3 marks]
Mass = _____________ kg
4.5) The student’s results can only be used as an estimate of the mean power at her location.
Give one reason why. [1 mark]
(Total for Question 4 = 8 marks)
Give one reason why. [1 mark]
(Total for Question 4 = 8 marks)