Electricity and Circuits

What is voltage?

• The amount of energy used by a circuit
• The measure of the electrical potential difference between two points in a circuit
• The flow of electric charge through a circuit
• The measure of how much a material or device opposes the flow of electric current

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Voltage

What is the unit of measurement for voltage?

• Watts (W)
• Amperes (A)
• Volts (V)
• Ohms (Ω)

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Voltage

What provides voltage in a circuit?

• Inductors
• Battery or power supply
• Resistors
• Capacitors

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Energy Source

What is resistance?

• The measure of how much a material or device opposes the flow of electric current
• The flow of electric charge through a circuit
• The measure of the electrical potential difference between two points in a circuit
• The amount of energy used by a circuit

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Resistance

What is the unit of measurement for resistance?

• Volts (V)
• Ohms (Ω)
• Watts (W)
• Amperes (A)

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Resistance

What is current?

• The flow of electric charge through a circuit
• The measure of how much a material or device opposes the flow of electric current
• The amount of energy used by a circuit
• The measure of the electrical potential difference between two points in a circuit

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Current

Which terminal do electrons flow FROM in a circuit?

• Positive terminal
• Neither terminal
• Both terminals
• Negative terminal

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Charge

What affects the flow of current in a circuit?

• Voltage only
• Resistance only
• Neither voltage nor resistance
• Both voltage and resistance

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Resistance

Voltage

What will a higher voltage result in?

• A greater flow of current through the circuit
• No change in the flow of current through the circuit
• A change in the resistance of the circuit
• A lower flow of current through the circuit

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Current

Voltage

What will a higher resistance result in?

• A slower flow of current through the circuit
• No change in the flow of current through the circuit
• A change in the voltage of the circuit
• A faster flow of current through the circuit

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Resistance