# Lesson Worksheet: Electrical Resistance Science

In this worksheet, we will practice describing the effects of electrical resistance on the flow of charge within a circuit.

Q1:

Which of the following sentences describes what will happen to a wire in a circuit if a very large current is passed through it?

• AThe wire will cool down.
• BThe wire will heat up.
• CThe wire will neither heat up nor cool down.

Q2:

Which of the following is the correct unit for electrical resistance?

• AThe joule
• BThe volt
• CThe ohm
• DThe watt
• EThe ampere

Q3:

Any wire will have some amount of resistance. There are two unequal lengths of identical wire. Which one of the following sentences is correct?

• AThe wire of greater length has the greater resistance.
• BThe wire of greater length has the lower resistance.
• CBoth wires will have the same resistance.

Q4:

Which of the following is the correct unit symbol for ohms?

• AO
• BR
• Co
• D
• EΩ

Q5:

Which of the following is the correct circuit component to measure resistance?

• AVoltmeter
• BOhmmeter
• CAmmeter

Q6:

If a component in a circuit has a higher electrical resistance, is it easier or harder for charges to move through it?

• AEasier
• BHarder

Q7:

The diagram below shows an electric circuit consisting of a cell, a bulb, a voltmeter, and an ammeter. The readings of the ammeter and the voltmeter are shown on the diagram. What is the resistance of the bulb? Q8:

The diagram below shows an electric circuit. How many variable resistors are there in the circuit? Q9:

The diagram below shows an electric circuit consisting of a cell and a bulb. If the potential difference across the bulb is 1 volt and the current through the bulb is 1 ampere, what is the resistance of the bulb? Q10:

Which of the following is the correct circuit symbol for a resistor?

• A • B • C • D • E This lesson includes 16 additional questions for subscribers.