First Quiz Flashcards
Light, heat, chemical and magnetic changes are all produced by:
Electricity
Most of the electricity you use daily consists of a flow of tiny, negatively charged particles called:
Electrons
Electric current moves along a path called a(n):
Conductor
Any electrical appliance activated by the flow of electric current such as a facial steamer is known as a (n):
Load
Materials that best transport electricity are called:
Conductors
Since silver and copper transmit electricity, they are:
Conductors
Which of the following materials is considered a conductor?
Water-containing ions
Materials that do not allow a current to pass through them are called:
Insulators
Which of the following materials doesn’t allow current to pass through it?
Glass
Plastic, rubber or paper are examples of what type of materials?
Insulating materials
Why is it dangerous to use any electrical cord with a break in it?
Can cause electrical shock
Cords on appliances should be kept straight and free of knots, kinks and tangles to prevent:
Breaks
An amp is a unit of electric:
Strength
How many milliamperes equal one ampere?
1,000
A volt is a unit of electric:
Pressure
Which of the following descriptions identifies a volt?
Measure of how hard the electrons are being forced or pushed by a source
All of the following statements are true about 240-volt current, except;
Powers small appliances
A unit of electric resistance is called a(n):
Ohm
A measure of how much electrical energy is being used is known as a:
Watt
How many watts equals one kilowatt?
1,000