WorksheetsElectricity (Honors)
Total questions: 10
Worksheet time: 6mins
Which of the following materials is an example of a good electrical conductor?
Copper
Glass
Cloth
Air
Which of the following is an example of a good electrical insulator?
Glass
Gold
Salt Water
Aluminum
How does the electrical resistivity of distilled water compare to the electrical resistivity of salt water?
Distilled water, an insulator, has a higher resistivity than salt water, a conductor.
Distilled water, a conductor, has a higher resistivity than salt water, an insulator.
Distilled water, an insulator, has a lower resistivity than salt water, a conductor.
Distilled water, a conductor, has a lower resistivity than salt water, an insulator.
What is the function of a switch in an electrical circuit?
When a switch is closed, it completes a circuit.
A switch is a source of voltage.
A switch generates electrical current.
A switch provides resistance to a circuit.
Which of the following components in this circuit is a resistor?
The light bulb
The switch
The battery
The wire
Ohm's Law states that the voltage of a circuit is equal to the product of its current and resistance (V = IR). Which of the following statements correctly describes the relationship between voltage, current, and/or resistance?
Current is directly proportional to voltage and indirectly proportional to resistance.
Voltage is directly proportional to current and indirectly proportional to resistance.
Resistance is directly proportional to voltage and current.
Resistance is directly proportional to current and indirectly proportional to voltage.
According to Ohm's Law, which of the following statements is true?
Resistance is equal to voltage times current (R = VI)
Current is equal to voltage divided by resistance (I = V/R)
Voltage is equal to current divided by resistance (V = I/R)
Current is equal to voltage times resistance (I = VR)
What is an advantage of parallel circuits over series circuits?
In a series circuit, if a single resistor (like a light bulb) stops working then the entire circuit stops working. In a parallel circuit, if a single resistor stops working, the rest of the circuit still works.
In a series circuit, if a single resistor (like a light bulb) stop working, the rest of the circuit still works. In a parallel circuit, if a single resistor stops working, the entire circuit stops working.
Parallel circuits do not require a switch like series circuits do.
There is no advantage between parallel and series circuits.
You are trying to create a circuit to make an electric motor to work. The motor produces 2 ohms of resistance and requires 3 amps of current to operate. You attach a 4 volt battery to the circuit and the motor doesn't work due to insufficient current. What can you do to increase the current? (Remember V = IR)
Increase the voltage of the circuit by using a 6 volt battery
Decrease the voltage of the circuit by using a 2 volt battery.
Increase the resistance of the circuit by using a motor with 4 ohms of resistance.
Which of the following groups of objects are all insulators?
plastic, glass, and distilled water
iron, salt water, and gold
silicon, germanium, and air
glass, aluminum, and wood
