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WorksheetsProperties of materials ( part 2 )
Total questions: 15
Worksheet time: 27mins
A material that lets electric current pass through it.
insulators
conductors
circuits
A material that blocks the flow of an electric current is called a/an ___________________.
insulator
conductor
circuit
What are some examples of insulators?
silver, iron, cooper
metal spoon, penny, aluminum
rubber, glass, wood
gold, wire, nails
Which of the following is the best example of an electrical conductor?
copper wire
glass baking pan
rubber handle
wooden spoon
A student is having a problem getting a light bulb to light up in an electrical circuit. They notice there is a gap in the wiring but there is not enough wire to complete the circuit. What could the student do to fix the problem?
put a rubber handle in the gap
use a piece of of nylon rope to attached the wires together
change the battery or the light bulb
attach a paperclip to the wires in between the gap
Is an aluminum foil a conductor or insulator?
conductor
insulator
A piece of Waffle is stuck in a toaster oven. You want to create a device to use that will help you not get shocked as you try to get the waffle out. Which group of items would be the best to use to remove the waffle without getting shocked?
nails, rubber band, wooden spoon
paperclip, nail, and paper towel
rubber band, eraser, and wooden spoon
paperclip, penny, and nail
What object would best complete this circuit?
A pencil
a rubber band
a plastic spoon
a metal spoon
The electrical wires in many homes are made of copper and covered with plastic. Why are copper and plastic good choices for electrical wires?
Copper is a conductor of electricity, and plastic is an insulator of electricity.
Copper is an insulator of electricity, and plastic is a conductor of electricity.
Copper is a conductor of electricity, and plastic is an insulator of heat.
Copper is an insulator of electricity, and plastic is a conductor of heat.
Why is this electrician wearing gloves?
To keep himself dry
To insulate himself
To produce electricity
To create an electrical circuit
Is an eraser a conductor or insulator?
conductor
insulator
