Ohm's Law and Electric Circuits (Physics)

What unit is used to measure voltage?

• Ohms

• Omega

• Volts

• Amps

What unit is used to measure current?

• Ohms

• Omega

• Volts

• Amps

Tags

NGSS.HS-PS2-5

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

Tags

NGSS.HS-PS2-5

Electrons flow:

• Randomly in all directions

• Towards each other

• From areas of low potential to areas of high potential

• From areas of high potential to areas of low potential

Tags

NGSS.HS-PS3-5

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

Tags

NGSS.HS-PS2-5

Conventional current:

• Flows in the same direction as electrons

• Flows in the opposite direction as electrons

• Sometimes flows with the electrons and sometimes against them

• Has no relationship with electrons

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 bulbs as added, the brightness of each bulb increases

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