Electricity Part 1

What is a form of energy that produces magnetic, chemical, and heat effects?

• thermal energy
• mechanical energy
• electrical energy
• nuclear energy

A substance that readily transmits electricity is a ​ (a)   and examples include ​ (b)   and a substance that resists the passage of electricity is a ​ (c)   and examples include ​ (d)  

• conductor
• metal, the human body, water
• nonconductor
• rubber, silk, dry wood, glass, cement

What is another name for a nonconductor?

• conductor
• semiconductor
• resistor
• insulator

A constant electrical current traveling in one direction only is called: (a)   . An example of this is something that uses batteries, like a ​ (b)   A rapid an interrupted current, flowing first in one direction, and then in the opposite is ​ (c)   . An example of this is something that plugs in, like a ​ (d)   .

• direct current
• flashlight.
• alternating current
• blow dryer

Match the following

• watt

• The measurement of electrical energy being used in one second

• ohm

• A unit of electrical pressure

• voltage

• The term for measuring the strength of electric current

• ampere

• The resistance of electric current

A device that automatically shuts of an electric circuit in event of an overload is a (a)  

while a device that blows out or melts is a ​ (b)  

• circuit breaker
• fuse
• grounding pin
• UL certified cord

All appliances you use should be:

• two-pronged

• UL certified

• Eco-friendly
• High-powered

What is one safety precaution when using electricity?