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19 questions
A buzzer produces sound.
TRUE
FALSE
Electric appliances have circuits.
TRUE
FALSE
All types of batteries are rechargeable.
TRUE
FALSE
A circuit will not work if it has complete parts.
TRUE
FALSE
Batteries store electrical energy.
TRUE
FALSE
Solar energy is a non-renewable resource
TRUE
FALSE
Wasting electricity is similar to saving money.
TRUE
FALSE
Rubber doesn't allow electricity to pass through.
TRUE
FALSE
Removing the plug of an appliance with wet hands.
SAFE practice
DANGEROUS practice
Using an appliance with exposed electric wires.
SAFE practice
DANGEROUS practice
Putting liquids like water and juice away from an electric appliance.
SAFE practice
DANGEROUS practice
Sticking your finger to an electric outlet.
SAFE practice
DANGEROUS practice
What supplies the energy in a simple circuit?
battery
circuit
switch
wire
Which material is a conductor?
glass
wood
steel
Which material is an insulator?
plastic
gold
copper
A/an ________________ circuit has no breaks and the bulb will light up.
open
closed
10. A/an _____________ circuit has a break and the bulb will not light up.
open
closed
Will the light bulb light up if the switch remains open as shown?
No, because the electric circuit is not complete.
Yes, because the circuit will be complete.
No, because the battery will push the electric current.
Yes, because the circuit will be complete.
Jill finds that all of the electric cords in her school are covered in plastic. Why is it important to cover the electric cords with plastic?
Plastic is an insulator.
Plastic is a conductor.
Plastic is strong.
Plastic will melt.
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