Current Electricity

What is voltage?

• the rate of flow of charge

• the difference in charge between 2 points

• the amount of available charge

How does electric current flow?

• from lower charge to higher charge

• from higher charge to lower charge

What is an electric current?

• a build up of electrons

• the difference in charge between 2 points

• the flow of electrons over a circuit

• the opposition to flow of electrons

What is resistance

• the rate at which a charge is flowing

• the material's tendency to resist flow of electrons

• the difference of charge between 2 points

• it is futile

What is the unit we use to measure electric current?

• ampere (amp)

• ohm

• volt

• newton

what is an electric cell?

• a device that converts mechanical energy into electrical energy

• a device that turns stored chemical energy into electrical energy

• a device that devours electrical energy

• a device that converts static electricity into mechanical energy

What is a primary cell?

• a one-use source for electrical charge

• a re-usable source for electrical charge

• a device to change sunlight into electrical charge

• a one-use source for sunlight to power flashlights

What is a storage cell?

• a one-use source of electrical energy

• a re-chargeable source of electrical energy

• a one-use source of solar electricity

What is a wet cell battery?

• one that uses water to make electricity

• one that uses a liquid electrolyte solution

• one that uses a powdered electrolyte solution

What is a dry cell battery

• one that uses water to make electricity

• one that uses a liquid electrolyte solution

• one that uses a paste electrolyte