-
Introduction
View the activity introduction for more information on the topic
-
Read aloud
Read the question aloud
-
Accessibility
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
In this activity, we will decide whether or not a circuit will work. For example, whether it will light a bulb or make a fan work.
As you know, electric current flows because it is pushed by cells (or batteries). For the current to flow right around a circuit, there must be no gaps in it.
If the circuit has a switch in it, and the switch is open, that's a gap - no electric current will flow.
The green component in this circuit is a type of switch called a reed switch. Reed switches are switched on by magnets - bringing a magnet near to it will close the switch and allow electric current to flow.
So, in this activity, we are going to be checking whether or not a circuit is complete, allowing current to flow around it.
Remember: the higher the electric current, the brighter any lamps will be, the faster a motor will turn and the louder a buzzer will sound.
Does that make sense?
Question
/ 6Mr Berkeley
Do you want to skip questions and finish?
Hold up, it looks like there may be an issue with your spelling. Why not try it again?
You need to check your answer before you proceed. Are you sure you want to skip?
Teacher explanation