Which materials are good conductors of heat? *
1 point
feather
aluminum
plastic
wood
Which of the following materials is an electrical conductor? *
1 point
silver
silver-colored plastic
corn
rubber
Why are electrical insulators important? *
1 point
They help the flow of electricity
They are used to protect us from electricity
They provide power for electric circuit
They help conduct heat
What metal is the most commonly used conductor in electronic wiring and electronic circuits? *
1 point
Silver
Platinum
Zinc
Copper
What is NOT an example of an insulator in the kitchen? *

An oven mitt
A wooden spoon
Pots and pans
A plastic measuring cup
What is the difference between a conductor and an insulator? *
1 point
An insulator allows electricity to flow through it easily and a conductor does not.
A conductor allows electricity to flow through it easily and an insulator does not.
An insulator is magnetic and a conductor is not.
A conductor is magnetic and an insulator is not
Which of the following is a negative effect of heat? *
1 point
Heat is used in cooking.
Heat keeps our body normal.
Heat is used in building construction.
Heat can cause burn, dehydration and heat stroke.
An object that does not allow electricity to pass through is called______ *

insulator
electromagnet
static electricity
conductor
Why is a severe electric shock dangerous? *
1 point
It can cause burns.
It can stop the heart from breathing
It can interfere with breathing
All of the above