Trinity Church of England High School

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Thursday 28 August 2008 (the school is currently on holiday) | email | E-learning

Science > Key Stage 3 > Year 9

9I - Energy and Electricity


power plant

Use the table below to help you study this unit.

 

Level 3

I know that electricity will not flow in an incomplete (broken) circuit.

I can identify, name and draw components.

I know that a bulb will be brighter if you have more cells (battery) in the circuit.

I know that if you add more bulbs to a loop (series) circuit they will get dimmer.

I know that electricity is convenient, and that it costs money.

Level 4

I can describe an electrical circuit by drawing symbols for the components.

I can identify the two ways of connecting circuits.

I can describe how bulbs behave in the two types of circuit.

I know that energy in circuits can be ‘wasted’.

Level 5

I know the correct name for the two types of circuit (series and parallel).

I know how to measure the current in a circuit.

I can explain current as a flow of charge.

I know that voltage provides the potential for electricity to flow.

I know that the current in a circuit can be changed using a variable resistor.

I can explain how electricity is generated using different energy sources (e.g. coal, oil, gas, wind, sun).

I know that generating electricity can cause pollution.

I can give examples of ‘waste’ energy transfer.

Level 6

I know that in a series circuit the current is the same everywhere.

I know that in a parallel circuit the current is not the same everywhere.

I can describe how a cell produces voltage.

I can relate the fact that voltage ‘drops’ across a component to the idea that energy is being transferred to that component.

I can give examples of the dangers of high voltage circuits.

I can compare the amount of energy transferred in different electrical devices by talking about ‘power’.

I can describe other examples of energy transfer.

I understand the link between heat energy and temperature.

Level 7

I can explain why the current is different in different places in parallel circuits.

I know that current is conserved.

I can explain voltage.

I can use my understanding of power to work out the cost of using electrical appliances.