1 (a) Diagram 1 shows three laboratory apparatus, P, Q and R.
Name P, Q and R using the words given in the box below.
Name P, Q and R using the words given in the box below.
P = Bunsen burner
Q = Tripod stand
R = Beaker
(b) Draw lines to match the laboratory apparatus with its function.
Stopwatch = Measures time
Calipers = Measures diameter
Spring balance = Measures weight
2. Diagram 2 shows a 3-pin plug with 13A fuse.
(a) State the name of wire Q. -- Live wire
(b) Complete Table 2 by writing the international colour code used for the wire.
Type of wire Jenis wayar | International colour code Kod warna antarabangsa |
Live wire Wayar hidup | Brown//red |
Neutral wire Wayar neutral | Blue//black |
Earth wire Wayar bumi | Yellow with green stripes Kuning dengan jalur hijau |
(c) State one function of fuse.
Protects the circuit//prevents short circuit//controls excess current.
(d) What might happen to an electrical appliance if the wires in the 3-pin plug are wrongly connected?
Will not function//No current flow
(e) If 15A current flows through a 3-pin plug, predict what will happen to the fuse in the plug.
Will not function//will melt//breaks down
To be continued.......
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