[1] 0654/31/M/J/13 Q6 part Torches (flashlights) are usually powered by electrical cells. They can also be powered by energy from the Sun (solar energy). Solar energy is a renewable energy resource. Write the energy resources below into the table to show which are renewable and which are non-renewable. coal geothermal hydroelectric natural gas oil wave wind renewable resource non-renewable resource [1] 0654/32/M/J/13 Q7 part The energy output from the solar panels was measured during one day. Fig. 1.3 is a graph of the results. (i) Explain why the energy output from the panels varies during the day. [1] (ii) The motor in the car needs 2000J/s to move the car at 7m/s. Use Fig. 1.3 to calculate the number of hours in the day for which the solar cells generate sufficient electricity to run the car at this speed. hours [1]
[1] 0654/31/M/J/13 Q6 part Torches (flashlights) are usually powered by electrical cells. They can also be powered by energy from the Sun (solar energy). Solar energy is a renewable energy resource. Write the energy resources below into the table to show which are renewable and which are non-renewable. coal geothermal hydroelectric natural gas oil wave wind renewable resource non-renewable resource [1] 0654/32/M/J/13 Q7 part The energy output from the solar panels was measured during one day. Fig. 1.3 is a graph of the results. (i) Explain why the energy output from the panels varies during the day. [1] (ii) The motor in the car needs 2000J/s to move the car at 7m/s. Use Fig. 1.3 to calculate the number of hours in the day for which the solar cells generate sufficient electricity to run the car at this speed. hours [1]
past-paper-questions-energy-work-and-power.docx