WorksheetsPSC Year 9 Science Electricity 7.1 CFU
Total questions: 11
Worksheet time: 6mins
True or False?
Like charges attract.
TRUE
FALSE
If electrons leave an object, the object becomes...
What are the two types of electricity?
Static and electrons
Current and voltage
Series and parallel
Static and current
What are the 3 main components of an electric circuit?
An energy source, a pathway (wires) and a load
An energy source, a switch and wires
An energy source, an energy user and a switch
A load, a switch and wires
Why do electricians always wrap wires in plastic?
Plastic comes in many different colors
Plastic is a good electrical conductor
Plastic makes the wires easy to bend
Plastic is a good electrical insulator
Which of these materials is a good conductor of electricity?
Rubber
Metal
Newspaper
Glass
An inflated balloon is dragged across the carpet and then held above a student's head. Why is the student's hair attracted to the balloon?
Electron transfer causing electrostatic charge build up.
There is too much dust in the air.
The hair and balloon have the same electrostatic charge.
The person needs to wash their hair.
Attract each other
Even out in the end
Repel each other
Cause a spark
Why does a Van de Graaff generator make your hair stand up if you touch the dome?
The current is trying to flow out of the hair ends.
The electrons gather on the hair ends and repel each other.
The hair is repelled by the dome of the Van de Graaff generator.
The hair is attracted to the surrounding air.
Which of the following DOES NOT involve the use of electrostatic charge?
