Current & Voltage

Define what a current is

• the flow of charge

• the speed of an electron

• the amount of charge

• the number of electrons

What is voltage?

• the sum of potential energy between two points in a circuit

• the speed of electrons as they flow around a circuit

• the difference in potential energy between two points in a circuit

• the opposition to the flow of current

The relationship between the energy source and the circuit is:

• the energy source removes energy from the circuit

• the energy source supplies energy to the circuit

The relationship between circuit components and energy is:

• circuit components REMOVE energy from the circuit

• circuit components ADD energy to the circuit

Current will flow in a direction from areas of ____ potential energy to areas of ____ potential energy

• high; low

• low; high

• high; high

• low; low

An energy source will supply MORE energy to its circuit if it has a:

• high voltage

• low voltage

• no voltage

Which instrument is used to measure the voltage between two points in a circuit?

• coulombmeter

• ammeter

• voltmeter

• ohmmeter

Which instrument is used to measure the current in a circuit?

• coulombmeter

• ammeter

• voltmeter

• ohmmeter