T2 | C2 | BASIC ELECTRICAL PROPERTIES WITH OHM'S LAW

Multiple Choice

Which property of an electric circuit is measured in Ohms (Ω)?

• Voltage

• Current

• Resistance

• Power

Multiple Select

Which of the following are properties of an electric circuit?

• Voltage

• Current

• Resistance

• Insulator

Multiple Choice

Which property of an electric circuit is measured in Amps/Amper (A)?

• Voltage

• Current

• Resistance

• Power

Multiple Choice

Which property of an electric circuit is measured in Volts (V)?

• Voltage

• Current

• Resistance

• Power

Multiple Choice

What will happen to the flow (current) of water if a rock (resistance) blocks the pipe?

• The flow (current) decreases.

• The flow (current) increases.

• The flow (current) remains the same.

• The flow (current) reverses direction.

Open Ended

Based on the water pipe analogy in the previous slides, explain how resistance affects electric current in a circuit.

Multiple Select

Which of the following statements are true about resistance?

• All materials have resistance.

• Conductors have little resistance.

• Insulators provide a lot of resistance.

• All materials are insulators.

Multiple Choice

Based on the model, which of the following would be true regarding the relationship between voltage, current, and resistance?

• Current will reduce voltage.

• Current will not pass through resistance.

• Resistance will reduce current.

• Voltage will reduce resistance.

Multiple Choice

Based on the graph, which of the following would be true regarding the relationship of voltage and current?

• As voltage increases, current decreases.

• Voltage will not affect current.

• As voltage decreases, current increases.

• As voltage increases, current also increases.

Multiple Choice

According to Ohm's Law, what happens to the current in a circuit if the resistance increases while the voltage stays the same?

• The current decreases

• The current increases

• The current stays the same

• The current reverses direction

Multiple Choice

If you double the voltage across a circuit with constant resistance, what will happen to the current?

• The current will double

• The current will be halved

• The current will stay the same

• The current will decrease to zero

Open Ended

Describe what happens to the current in a circuit if you halve the voltage while keeping the resistance constant.

Multiple Choice

Select the correct formula for calculating current (I) using Ohm's Law.

• I = V / R

• I = R / V

• I = V x R

• I = V / I

Multiple Choice

Select the correct formula for calculating voltage (V) using Ohm's Law.

• I = V / R

• V = I/R

• V = I X R

• R = V X I

Multiple Choice

Which formula correctly represents Ohm's Law for calculating resistance?

• R = V / I

• R = I / V

• R = V x I

• R = I x V

Multiple Choice

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

• 3 Amps
• 192 Amps
• 2 Amps
• 4 Amps

Multiple Choice

What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts

• 15 Ohms
• 4 Ohms
• 0.3333 Ohms
• 2 Ohms

Multiple Choice

If a charger for a tablet offers a voltage of 120V and has 240Ω of resistance, what is the amperage?

• 0.5A

• 2A

• 14,400A

• 28,800A

Multiple Choice

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?

• 5A

• 10A

• 15A

• 20A

Multiple Choice

With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present

• 2.41 Ohms
• 2.52 Ohms
• 2.1 Ohms
• 0.3333 Ohms

Open Ended

What questions do you still have about the properties of electricity or Ohm's Law that you would like to explore further?

Multiple Select

Which of the following best describes your understanding of the relationship between the properties of electricity and Ohm's Law after this lesson?

• I fully understand the relationship and can solve related problems.

• I understand the basic concept but need more practice with problems.

• I am still confused about the relationship and need more explanation.

• I did not understand the topic at all.