WorksheetsElectricity (Part 2)
Total questions: 35
Worksheet time: 22mins
Opposite charges _______________.
attract
repel
nothing changes
Like charges _______________.
attract
repel
nothing changes
What supplies the energy or power in an electric circuit?
light bulb
wire
battery
What would best complete this circuit?
A wire
A switch
A battery
A light bulb
How could you make this circuit work?
Close the switch
Take out the bulbs
Add another battery
Add another bulb
Mahra finds that all of the electric cords in her school are covered with plastic. Why is it important to cover the electric cords with plastic?
Plastic is an insulator.
Plastic is a conductor.
Plastic is strong.
Plastic will melt.
Which of the following is the correct relationship among power, current, and voltage?
P = I/V
V = P * I
P = I * V
E = P * t
The statement that current is equal to the voltage difference divided by the resistance is known as ____.
Einstein's equation
Faraday's law
Newton's law
Ohm's law
In Figure 7-1, circuit ____ is wired in series.
A
B
In Figure 7-1, circuit ____ is wired in parallel.
A
B
A unit for measuring the amount of charge
Electric Charge
Electrical Force
Coulomb
Static Electricity
Electrically Neutral
The pushes and pulls that electric charges exert on each other
Electric Charge
Electrical Force
Coulomb
Static Electricity
Electrically Neutral
What is Voltage?
The potential energy of an electrical supply stored as an electrical charge
The flow of electrons in a circuit
The resistance of the flow of electricity in a circuit
The amount of energy absorbed or produced within a circuit.
How is power measured?
Watts
Ohms
Volts
Amps
In a series circuit, how many paths can current flow in the circuit?
0
1
2
Unlimited
An electric current flowing in one direction is known as a/an
direct current
alternating current
straight line
I do not know and do not wish to guess.
An electric current that can reverse the direction in which it flows is known as a/an
direct curent
alternating current
switch-a-roo
I do not know and do not wish to guess.
If lamp 1 is unscrewed from its holder, what will happen to lamp 2?
It will get brighter
It will stay the same brightness
It will go out
Nothing will happen
What is/are the lesson(s) learnt from this clip? Pick all the correct answers.
Electricity is dangerous if used improperly.
Never touch bare wires with hands.
Don't wear jackets when using electricity.
Long hair will increase chance of electric shocks.
Which is the correct schematic diagram for the circuit above?
A circuit has a resistance of 5 ohms and a voltage of 15 V, find the current.
45 A
3 A
0.33 A
15 A
Find the voltage for a circuit with a resistance of 3 ohms and a current of 8 amps.
24 V
0.375 V
2.67 V
0 V
What is this the symbol for in a circuit?
resistor
switch
battery
light bulb
After several tries to turn on a light using a simple circuit, a student concluded that the circuit must be closed in order for the light to be turned on. Is the student’s conclusion reasonable?
No, because circuits cannot turn on lights.
No, because the circuit needs to remain open in order for it to work
Yes, because all conclusions are correct
Yes, because circuits must be closed in order for the electricity to flow through them
In science class, students were investigation ways to build circuits. Which items should students choose to create a working electrical circuit?
One copper wire, wood chips, and a light bulb
Two copper wires, a plastic straw, and a light bulb
Two copper wires, a battery, and a light bulb
Wood chips, iron fillings, and a battery
A science class was completing an experiment on electrical circuits. Why did the bulb go out each time the switch was opened?
Opening the switch broke the circuit
The battery was probably going flat
There was too much electricity flowing
Opening the switch closed the circuit
