Draw a symbol of a lightbulb.
This symbol represents ... .
Three batteries or three cells
Draw an open circuit diagram with an open switch, two cells, and a bulb.
Part of the lightbulb that heats up and gives off light when electricity pass through it is called ... .
Filament
This appliance is powered by ........ (mains/battery).
battery
Explain what will happen to the magnet.
There will be two magnets now as each broken magnet will also have two poles,
Mention the shapes of the magnets.
U-shaped, bar, ring, horseshoe, and rod/ cylinder
Mention 4 metals that are magnetic.
Steel, iron, nickel, cobalt
What property of magnet that is shown by the picture?
Magnetism can pass through non-magnetic materials
Mention 3 objects that use magnet!
maglev train, telephone, doorstop, laptop, magnetic board, compass, scrapyard magnet
Why can't we hear sound in space?
Because it is a vacuum (no medium for the sound to travel).
Explain why a studio's wall is layered with foam.
To prevent sound from outside is heard inside the studio.
What type of instrument is it? How to produce sound with it?
Violin, string instrument, vibrate the string using a bow
How can we change the pitch of this instrument?
Change the tension, the thickness, and the length of the vibrating string
