Intro to Circuits

What unit is used to measure voltage?

• Ohms

• Omega

• Volts

• Amps

What unit is used to measure current?

• Ohms

• Omega

• Volts

• Amps

What unit is used to measure resistance?

• Ohms

• Omega

• Volts

• Amps

Which is the right form of Ohm's Law?

• V=I/R

• V=R/I

• I=V/R

• I=R/V

What is not needed in order to create a working circuit?

• battery (power source)

• lightbulb

• current

• closed circuit

If a circuit had 4 D-Cell batteries (each 1.5 V) and a lightbulb with resistance of 2 ohms, what is the current that flows through the circuit?

• 2 A

• 3 A

• 6 A

• 8 A

What is voltage?

• the amount of push the electrical source supplies to the circuit

• how much a given device resists the flow of electric current

• flow of electric charge

• none of the above

What is current?

• the amount of push the electrical source supplies to the circuit

• how much a given device resists the flow of electric current

• flow of electric charge

• none of the above

What is resistance?

• the amount of push the electrical source supplies to the circuit

• how much a given device resists the flow of electric current

• flow of electric charge

• none of the above

What are the 3 basic components of a circuit?

• Energy source,

  Load (Component),

  Energy Pathway (wire)

• Battery,

  Energy source,

  Energy Pathway (wire)

• Battery,

  Wire,

  Insulators

• Insulators,

  Conductors,

  Charge