CWK 8.8C: Electricity Benchmark Review

A simple circuit consists of a 12-volt battery, an ammeter, and a resistor. The ammeter reads 3 amps. What is the resistance of the circuit?

• 4 ohms

• 3 ohms

• 6 ohms

• 5 ohms

Match the word with the description: Current

• Slows down the flow of electrons

• The “push” of energy that gets the electrons to flow

• The amount of electrons flowing through a point

• The resistance in a circuit

Match the word with the description: Voltage

• Slows down the flow of electrons

• The “push” of energy that gets the electrons to flow

• The amount of electrons flowing through a point

• The resistance in a circuit

Match the word with the description: Resistor

• Slows down the flow of electrons

• The “push” of energy that gets the electrons to flow

• The amount of electrons flowing through a point

• The resistance in a circuit

When a current of 10 amps flows through a 50 Ω resistor in a circuit, what is the voltage in the circuit?

• 500 volts

• 50 volts

• 5 volts

• 100 volts

Given a 9-volt battery and a 6 Ω resistor, what is the amperage in the circuit?

• 1.5 amps

• 2 amps

• 3 amps

• 0.5 amps

How should a voltmeter be placed in a circuit?

• In series – in line with all the components of the circuit

• In parallel – attached to each side of the item you are measuring the voltage drop for

• Below the circuit

• Upside down in the circuit

Match the metric unit with the correct term: Current

• Ohm

• Ampere

• Volt

• Watt

Which statement regarding short circuits is true?

• A short circuit is an accidentally low-resistance connection in a circuit

• A short circuit happens when the circuit is broken or interrupted

• A short circuit is dangerous because it creates a buildup of static charge

• A short circuit happens when the resistance in the circuit is too high

How should an ammeter be placed in the circuit?

• In series – in line with all the components of the circuit

• In parallel – attach to each side of the item you are measuring the flow of electricity for

• Below the circuit

• Upside down in the circuit