Ohm's law and 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 of the following is not a requirement of a basic circuit?

• A lightbulb

• A source of energy

• A closed path

• A device that uses the energy

Which of the following is true about voltage?

• Voltage resists the flow of electrons

• The voltage is responsible for moving free electrons through the circuit

• Voltage measures the rate at which charge flows through the circuit

• The lower the voltage, the brighter the bulbs in a circuit

Current can be defined as:

• The amount of voltage found in a circuit

• The total resistance electrons face within a circuit

• The rate at which electrical charge flows through a circuit

• The number of electrons a circuit has

Indicate which of the following statements are true of series circuits

• Series circuits have multiple pathways for the electrons to flow

• Series circuits have one pathway for electrons to flow

• As bulbs as added, the brightness of each bulb decreases

• As bulbs as added, the brightness of each bulb increases

• If one bulb is removed or burns out, the circuit stops working

Indicate which of the following statements are true of parallel circuits

• Parallel circuits have multiple pathways for the electrons to flow

• Parallel circuits have one pathway for electrons to flow

• As bulbs as added, the brightness of each bulb decreases

• As cells as added, the brightness of each bulb increases

• If one bulb is removed or burns out, the other bulbs will remain lit

Which of the schematic diagrams shown below best matches the picture of the circuit shown above?

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Which of the schematic diagrams shown below best matches the picture of the circuit shown above?

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