简答题 Calculate the amount of energy the turbine transfers in 10 s. Energy transferred =.............................. J (缺图)

简答题 A student feels cold at night and decides to sleep under a thick woollen blanket. The student says "I think that I can use shiny aluminium foil instead to keep myself warm." Do you agree with the student? Explain why. (缺图)

简答题 The diagram shows a metal device for cooking potatoes. Potatoes are pushed onto the metal spikes. The photograph shows two potatoes cooking in an electric oven. The inside of the oven is black. The heating element is at the bottom of the oven. Describe the different ways in which energy is transferred to cook the potatoes. (缺图)

单选题 The diagram shows some electrical appliances. Which appliance is designed to transfer electrical energy to thermal energy? (缺图)

填空题 Draw a labelled Sankey diagram for the lamp. (缺图)

单选题 The diagram shows some electrical appliances. Which appliance is designed to transfer electrical energy to kinetic energy? (缺图)

简答题 A student feels cold at night and decides to sleep under a thick woollen blanket. Explain how the woollen blanket helps to keep the student warm. (缺图)

填空题 The photograph shows equipment used for generating electricity from renewable sources. The panel of solar cells transforms ......................... energy into electrical energy. (using words from the box: chemical, heat, kinetic, light, sound) (缺图)