Describe how a voltmeter is used. Explain why the lights in a house are wired in parallel. Recall how the current changes when the voltage of the supply changes. Analyse a given parallel circuit and say which components will be on or off with Recall some dangers of electricity. different combinations of switches closed. Recall some safety precautions to be Recall the link between current and bulb followed when using electricity. brightness. Identify electrical hazards in a Explain why the current increases when scenario. the voltage of the supply is increased. Describe the job that fuses do. Describe how voltage is divided between Recall how the different wires are the components in a series circuit. connected in a plug. Describe how voltage varies in a parallel circuit. Describe the relationship between resistance and current. Describe how the resistance of a wire varies with its length and thickness. Explain how a variable resistor works. Explain why electricity is more convenient than other sources of energy, and classify some of its uses. Explain some safety precautions to be followed when using electricity. Explain how a fuse works. Explain how a domestic ring main is a form of parallel circuit. Identify errors in the wiring of a plug. Year 7 Science 7K Forces
Describe how a voltmeter is used. Recall how the current changes when the voltage of the supply changes. Recall some dangers of electricity. Recall some safety precautions to be followed when using electricity. Identify electrical hazards in a scenario. Describe the job that fuses do. Recall how the different wires are connected in a plug. Explain why the lights in a house are wired in parallel. Analyse a given parallel circuit and say which components will be on or off with different combinations of switches closed. Recall the link between current and bulb brightness. Explain why the current increases when the voltage of the supply is increased. Describe how voltage is divided between the components in a series circuit. Describe how voltage varies in a parallel circuit. Describe the relationship between resistance and current. Describe how the resistance of a wire varies with its length and thickness. Explain how a variable resistor works. Explain why electricity is more convenient than other sources of energy, and classify some of its uses. Explain some safety precautions to be followed when using electricity. Explain how a fuse works. Explain how a domestic ring main is a form of parallel circuit. Identify errors in the wiring of a plug. Year 7 Science 7K Forces