1 Electricity, generating electricity, making use of energy and domestic electricity

Practice questions on Electricity, generating electricity, making use of energy and domestic electricity

• A sound wave travels through air. The wave has a period of 0.002 s and a speed of 340 m/s.… (4 marks, Explain)
• A student is studying waves on the surface of water in a ripple tank. The student observes… (4 marks, Explain)
• A filament light bulb transfers electrical energy into light. Explain why the filament lig… (4 marks, Explain)
• A student builds a series circuit containing a battery, a switch, and three resistors. Des… (4 marks, Describe)
• A wind farm generates electricity using renewable energy resources. Describe what happens … (4 marks, Describe)
• A coal-fired power station and a solar farm are both used to generate electricity. Compare… (4 marks, Compare)
• A tidal barrage uses the movement of seawater to generate electricity. Explain how the ene… (4 marks, Explain)
• A electric kettle has a power-rating of 3 kW. When it is used, some energy is usefully tra… (4 marks, Explain)
• A tumble dryer spins wet clothes inside a drum while blowing hot air through them. Explain… (4 marks, Explain)
• An electric motor is used to lift boxes in a warehouse. Explain why the electric motor is … (4 marks, Explain)
• A wind turbine transfers energy from the wind to electrical energy. Explain why the wind t… (4 marks, Explain)
• A solar-powered water pump is used to move water from a river to a storage tank. The pump … (4 marks, Explain)
• A electric kettle is used to boil water. Explain why the kettle is not 100% efficient, and… (4 marks, Explain)
• A musician plucks a guitar string. The string vibrates and produces a sound wave that trav… (4 marks, Explain)
• A student says: 'A wave with a higher frequency must have a longer wavelength.' Explain wh… (4 marks, Explain)
• Describe the features of a wave, including what is meant by amplitude, wavelength, frequen… (4 marks, Describe)
• A household appliance transfers electrical energy into useful and waste energy. Explain wh… (4 marks, Explain)
• A student notices that their home has two types of lighting: old incandescent bulbs and ne… (4 marks, Explain)
• A tumble dryer has a power-rating of 2.5 kW. Explain what is meant by the term power-ratin… (4 marks, Explain)
• A student notices that the motor in an old electric fan gets very hot during use. Explain … (4 marks, Explain)