Equations/Units
Energy
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100
What is the unit for current?
What is amperes (A).
100
What are two materials that are considered conductors?
What is copper, iron, steel, brass, lead, tungsten.
100
What is a series circuit?
What is one path for current to flow through.
100
__________ are materials that don't allow electrons to flow through it easily.
What is an insulator.
100
Houses are usually wired in ______ circuits.
What is parallel.
200
What is the equation for electrical power?
What is P = IV.
200
How do electrons flow in an electric circuit in terms of voltage difference?
What is from a higher voltage to a lower voltage.
200
What type of battery is a car battery?
What is a wet cell battery.
200
A lightning bolt occurs when billions of ________ are transferred at the same time.
What is electrons.
200
Lightning is a large discharge of __________.
What is static electricity.
300
What is the unit for voltage difference?
What is volts (V).
300
What is static electricity?
What is an accumulation of excess electric charge.
300
What are two materials that are considered an insulator?
What is plastic, rubber, glass, wood.
300
The statement that current is equal to the voltage difference divided by the resistance is known as ______
What is Ohm's Law.
300
The unit for resistance is ____.
What is ohms.
400
What is the unit for electrical energy?
What is kilowatt-hours (kWh).
400
Why does current generally involve the flow of electrons, but not protons?
What is protons are in the nucleus. If the number of protons is changed, element is changed.
400
What is charging by contact?
What is process of transferring charge by touch or rubbing.
400
One source of constant electric current is _____.
What is battery.
400
The unit for power is ____.
What is watts (W).
500
What is the equation for electrical energy?
What is E = Pt
500
What is a parallel circuit?
What is two or more branches for current to move through.
500
________ produces air temperatures hotter than the Sun's surface.
What is lightning.
500
________ circuit is the type of circuit that causes an entire string of decorative lights to go out when one of the bulbs burns out.
What is parallel.
500
What is charging by induction?
What is the rearrangement of electrons on a neutral object caused by a nearby charged object.
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