Complete the sentences using words from the box.
chemicalgravitationalkineticlightthermal \text{chemical} \quad \text{gravitational} \quad \text{kinetic} \quad \text{light} \quad \text{thermal} chemicalgravitationalkineticlightthermal(i) A solar cell panel transforms _________________ energy into electrical energy.
(ii) A tidal turbine transforms _________________ energy into electrical energy.
On a breezy day, a small wind turbine transfers 85 W of power.
(i) State the equation linking power, energy transferred, and time.
(ii) Calculate the amount of energy the turbine transfers in 15 s.
The Sankey diagram below shows the energy transferred by the solar cell panel.
Show that the efficiency of the solar cell panel is 15%.
