A_____ is a circuit with only one loop for current to follow. Series circuit

An accumulation of excess electric charge is ____. Static electricity

What is voltage difference? The electric force that makes current flow in a circuit

According to ___, electric charge cannot be created or destroyed Law of conservation of charge

What type of substance makes the best conductor? Metals

Resistance in wires causes electrical energy to be converted into which form of energy? Thermal energy

What happens to the electric force if the distance between two electric charges is increased? Force becomes weaker

A commonly used unit for electrical energy is ___ Kilowatt hour kWh

Like charges ____; opposite charges _____ Repel; attract

The SI unit for current is the ____ ampere

An ___ surrounds every electric charge and exerts a force that causes other charges to be attracted or repelled. Electric field

____is a transfer of charge between two objects because of buildup of static electricity Static discharge

Connecting an object to earth with a conductor is called _____ Grounding

A device that can detect the presence of an electric charge is called an ____ Electroscope

The net movement of electric charge in a single direction is an _____ electric current

_____is the tendency for a material to oppose the flow of electrons Resistance

The rearrangement of electrons on a neutral object caused by a nearby charged object is called ___ Charging by induction

Which is stronger between a proton and an electron— gravitational force or electric force? Electric force

The SI unit for voltage difference is ___ Volts v

A material in which electrons are able to move easily is a ____ conductor

A material in which electrons are not able to move easily is an ____ because the electrons are held tightly to the atoms. Insulator

An example of a large discharge of static electricity is ____ lightning

What prevents damage from lightning? Grounding

6.25 x electrons is equal to one ___ amp

When current flows what caused the net movement of electric charges? Electric force

Electric charge flows from ____ voltage to ___ voltage. Higher; lower

A closed path that electric current follows is a(n) ____ circuit

The units for measuring resistance are ____ ohms

What object have greater resistance: metals or nonmetals? nonmetals

Name three things that will cause the resistance in an object to increase. Longer wire Thinner wire Increase the temperature of the wire

If you decrease the resistance and increase the voltage difference in a circuit, what will happen to the current? The current will increase

The relationship between voltage difference, current, and resistance in a circuit is known as ____ Ohm’s law

_____ circuits contains two or more branches for current to move thru. Parallel

Household circuits: series or parallel? parallel What type of voltage? 120v and 240v

What is the purpose of a fuse box or circuit breakers? Prevent overheating

A ____has a small piece of metal in it that melts if the current becomes too high breaking the circuit. fuse

A_____ contains a piece of metal that bends when the current is too high causing the switch to flip to the off position. Circuit breaker

The rate at which electrical energy is converted to another form of energy is the ____ Electric power

In Ohms Law, the letter I represents ____ current

What is used to maintain voltage difference in a circuit? battery

What is the difference between a dry cell battery and a wet cell battery? Type of electrolyte