Students use a circuit diagram to answer questions about how removing bulbs affects the other bulbs in the circuit. Assessment focus: Electrical circuits
Using a diagram of a torch, students explain the function of the following parts; cell, metal cone, metal strip, spring, and switch. Students also draw a circuit diagram for the torch.
Using the equipment supplied students make a series circuit according to a circuit diagram. Then students are asked to construct another circuit using different criteria and draw as a circuit diagram.
Students match each of seven circuit symbols provided to its respective name. Then the students use the symbols to complete the simple circuit diagram as described.
Students indicate on a circuit diagram where they would place switches in order to achieve various situations, such as the lamps being on, off, and other combinations.
Students use a diagram of a circuit to answer questions about which bulbs are in parallel and which are in series. Students are also required to put a switch into the circuit diagram provided.
Students indicate how brightly a bulb would glow in three different circuits. Students then use pictures of four appliances, showing the arrangement of their cells, to draw circuit symbol diagrams illustrating this cell arrangement.
Task: Draw, using symbols, circuit diagrams of three described circuits. Assessment focus: using conventions of circuit diagram; knowledge of circuit construction.
This practical task requires students to test a number of circuits and to give reasons why some of the circuits do not work while others do. Students also look at other circuits and explain what happens to the brightness of the bulb.