Worksheets4th Grade Science - Lesson 11: Intro to Circuits and Symbols
Total questions: 79
Worksheet time: 40mins
What is the daily objective for this lesson? Fill in the blank: The daily objective is to describe and demonstrate the components of a _______ and their symbols.
circuit
battery
resistor
wire
According to the lesson, what does the student need to demonstrate and describe?
How electrical energy travels in an open path
How electrical energy travels in a closed path that can produce light and thermal energy
How to build a battery
How to make a magnet
Fill in the blank: I can identify the _______ & components of a closed circuit.
symbols
colors
shapes
sizes
Fill in the blank: I can describe and understand how electrical energy flows in a _______ circuit.
closed
open
broken
loose
Fill in the blank: I can demonstrate and create a closed-circuit cut-up by explaining the _______.
components
colors
shapes
sizes
What is the language objective for this lesson?
To describe and demonstrate what makes a circuit work by defining and understanding the symbols used in electrical circuits and completing a graphic organizer
To build a robot
To write a story
To draw a picture
Which of the following statements is true?
Energy flows in an open path
Energy flows in a closed path
Energy cannot be transferred into other forms
Current can flow through insulators in a closed path
The current of electrons can flow through conductors of electricity or heat in a closed path.
True
False
The current of electrons can flow through insulators in a closed path.
True
False
Fill in the blank: Current flow cannot travel in an ________ or open circuit.
incomplete
complete
closed
parallel
Which of the following is a misconception students may have?
Energy flows in a closed path
Batteries contain electricity rather than energy
Current cannot flow through insulators
Understanding the basic components of a circuit
The components and symbols found in a closed circuit are:
Battery, switch, bulb, and connecting wires
Resistor, thermometer, and beaker
Magnet, pulley, and lever
Spring, gear, and wheel
Understanding the flow of electrical current transferred in a closed path can produce other energies.
True
False
Match the following terms with their correct definitions:
A material that allows current to flow easily
A
A device used to open or close a circuit
B
A material that does not allow current to flow easily
C
A closed path for current to flow
D
What is the source of energy that lights the bulbs?
The battery is the source of energy.
The wires are the source of energy.
The bulbs are the source of energy.
The switch is the source of energy.
What happens if the wires are not touching the battery?
The light bulb will not light up.
The light bulb will glow brighter.
The battery will explode.
The wires will melt.
What is a closed circuit?
It is an electrical circuit in which the current flows through an uninterrupted path.
It is a circuit where the current cannot flow due to a break in the path.
It is a circuit that only works with alternating current.
It is a circuit that does not require a power source.
What is an open circuit?
An electrical circuit in which the current flow is interrupted by a broken wire or an open switch.
An electrical circuit in which the current flows continuously without interruption.
A circuit that allows maximum current to flow through it at all times.
A circuit that is always connected to a power source.
What happens to the circuit when the wires are not connected or the switch is open?
If the circuit is not connected or the switch is open, it will not function because it is an open circuit, and the flow of current will not occur.
The circuit will function normally and the current will flow as usual.
The circuit will overheat and cause a short circuit.
The circuit will produce more light or energy than usual.
What is electric current?
The flow of electricity that can produce light, heat, or sound.
A type of magnetic field found in batteries.
A form of energy stored in food.
A device used to measure temperature.
What is an electrical circuit?
A pathway through which electrical current flows.
A device that stores electrical energy.
A material that does not conduct electricity.
A source of light energy.
What is a conductor?
A material that allows the flow of electricity.
A device that stores energy.
A material that blocks the flow of electricity.
A type of musical instrument.
What is an insulator?
A material through which electric current does not easily flow.
A material that allows electric current to flow easily.
A device used to measure electric current.
A source of electric current.
Students were weighing toy iron weights and the double pan balance. How much does the toy weigh? How do you know?
The toy on the double pan balance weighs 45 grams. The weights are 20g + 20g + 5g = 45g.
The toy on the double pan balance weighs 35 grams. The weights are 10g + 20g + 5g = 35g.
The toy on the double pan balance weighs 50 grams. The weights are 25g + 20g + 5g = 50g.
The toy on the double pan balance weighs 40 grams. The weights are 20g + 10g + 10g = 40g.
What is a circuit? Fill in the blank: A circuit is a path that ________ flows along. It starts at a power source, such as a battery, and flows through a wire to a light bulb or other device, and then back to the other side of the power source.
electricity
water
air
sound
What is electrical energy? Fill in the blank: Electrical energy is produced when ________ move from one place to another.
charged particles
water molecules
sound waves
light rays
What is an electrical current? Fill in the blank: A constant flow of charged particles is referred to as an ________ ________.
electrical current
magnetic field
thermal conductor
mechanical force
In a television, electrical energy is converted into which types of energy?
Sound and light energy
Heat and kinetic energy
Chemical and potential energy
Magnetic and nuclear energy
Match the parts of a circuit with their correct function:
Power Source
Provides energy for the circuit
Path
The route electricity flows
Switch
Turns the circuit on or off
Load
The device that uses the electricity
Electricity is:
a form of energy resulting from the movement of electrons
a type of solid matter
a kind of liquid fuel
a type of sound wave
An electric circuit is:
a closed path through which electric current flows
a device that stores electrical energy
a material that does not conduct electricity
a source of light energy
What is an electric circuit?
A. A broken path for electric current
B. A complete path through which electric current flows
C. A path with no wires
D. A path with only insulators
What makes an electric circuit complete?
Only a battery
Only a bulb
A battery, a bulb, and conducting wires
Only conducting wires
Fill in the blank: The current of electrons flows through _______ of electricity or heat in a closed path.
conductors
insulators
semiconductors
resistors
The current of electrons cannot flow through insulators in a closed or open circuit.
True
False
The squeezing of fingers is similar to the flow (or movement) of electricity in a closed (complete or working) circuit because:
Both involve a continuous path for movement to occur.
Both require a battery to work.
Both only happen in open circuits.
Both stop if you use your left hand.
A circuit is called a complete, working, or closed circuit because:
it allows electric current to flow continuously.
it has a broken path for current.
it does not use any wires.
it cannot power any devices.
This is called an incomplete, broken, or open circuit because:
the path for current is not complete
the circuit is overloaded
the wires are too long
the voltage is too high
Match each word to its correct definition.
battery
a device that stores and provides electrical energy
electrical circuit
a path through which electricity flows
complete
a circuit with no breaks
incomplete
a circuit with a break
open
a circuit that is not complete
Create a circuit chart in your science notebook. The chart should display a labeled illustration of the ways a light bulb will light and the ways it will not light.
A light bulb will light in a closed (complete) circuit and will not light in an open (incomplete) circuit.
A light bulb will light in an open (incomplete) circuit and will not light in a closed (complete) circuit.
A light bulb will light only if there are two batteries in the circuit.
A light bulb will not light in any type of circuit.
What is the source of energy that lights the bulbs?
The battery is the source of energy.
The wires are the source of energy.
The switch is the source of energy.
The bulbs are the source of energy.
What happens if you do not have the wires touching the battery?
Then it is not complete or closed, so the light bulb will not light up.
The light bulb will glow brighter.
The battery will last longer.
The wires will heat up.
What is a closed circuit?
It is an electrical circuit in which the current flows through an uninterrupted path.
It is a circuit where the current cannot flow due to a break in the path.
It is a circuit that only works with alternating current.
It is a circuit that does not require a power source.
What is an open circuit?
It is an electrical circuit in which the current flow is interrupted by a broken wire or an open switch.
It is a circuit where current flows without any resistance.
It is a circuit that always has a closed switch.
It is a circuit that allows maximum current to flow at all times.
Complete the following circuit: _______
Closed
Open
Broken
Disconnected
Incomplete or broken circuit: _______
Open
Closed
Short
Loaded
What is the evidence that an electrical circuit is closed?
The light bulb lights up.
The switch is off.
The wires are disconnected.
The battery is removed.
In what ways does an electrical circuit get its energy?
From the battery or energy source.
From the wires themselves.
From the switch.
From the light bulb.
Which of the following is a good conductor?
Plastic
Copper wire
Rubber
Write the components of the electronic circuit shown in the diagram below.
Battery, wire, light bulb, switch
Battery, resistor, fan, switch
Wire, capacitor, diode, switch
Battery, wire, motor, buzzer
Which of the circuits above is a closed circuit?
Circuits #4 and #3 are closed circuits.
Only Circuit #2 is a closed circuit.
Circuits #1 and #2 are closed circuits.
None of the circuits are closed.
Explain how you know it is a closed circuit.
Claim: Circuit #4 is a closed circuit because the light bulb and the buzzer are connected to the battery. Circuit #3 is a closed circuit because the wire is connected to the north and south terminals of the battery. Energy can flow through a closed circuit, allowing the components to function correctly. Circuit #1 is an open circuit because the wire is not connected to the battery. And Circuit #2 is missing the power source, 'the battery'.
Claim: Circuit #4 is an open circuit because the light bulb is not connected to the battery. Circuit #3 is an open circuit because the wire is not connected to both terminals of the battery. Energy cannot flow through an open circuit, so the components will not function. Circuit #1 is a closed circuit because the wire is connected to the battery. Circuit #2 has an extra battery, causing a short circuit.
Claim: Circuit #4 is a closed circuit because the battery is not needed for the light bulb to work. Circuit #3 is a closed circuit because the wire is only connected to one terminal of the battery. Energy can flow through any circuit, regardless of connections. Circuit #1 is a closed circuit because the wire is near the battery. Circuit #2 is missing a switch.
Claim: Circuit #4 is a closed circuit because the light bulb is glowing without a battery. Circuit #3 is a closed circuit because the wire is not connected to the battery. Energy can flow through an open circuit, allowing the components to function. Circuit #1 is an open circuit because the wire is connected to the battery. Circuit #2 is missing a light bulb.
The students used weights and a double pan balance to weigh a toy. The toy weighs:
the same as the total weight on the other pan
more than the total weight on the other pan
less than the total weight on the other pan
twice the total weight on the other pan
Which of the circuits above is a closed circuit?
Circuit 1
Circuit 2
Circuit 3
Circuit 4
It is a closed circuit because:
the path is complete and allows current to flow.
the switch is open, stopping the current.
there is a break in the wire.
the battery is not connected.
The evidence that an electrical circuit is closed is:
A light bulb in the circuit glows.
The wires feel cold to the touch.
There is no sound from the circuit.
The switch is in the off position.
An electrical circuit gets its energy from:
a power source such as a battery or generator
the wires themselves
the switches in the circuit
the resistors in the circuit
Write a description of the word 'Circuit' that will help you understand and remember its meaning. Include a picture as a visual connection.
A circuit is a path through which electricity flows.
A circuit is a type of battery used in electronics.
A circuit is a tool for measuring temperature.
A circuit is a device that stores water.
Write a description of the phrase 'Complete/working/closed' that will help you understand and remember its meaning. Include a picture as a visual connection.
Complete/working/closed means the circuit is connected all the way around, allowing electricity to flow.
Complete/working/closed means the circuit is broken and electricity cannot flow.
Complete/working/closed means the circuit is only partially connected, so electricity flows sometimes.
Complete/working/closed means the circuit is off and no electricity is present.
Write a description of the phrase 'Incomplete/broken/open' that will help you understand and remember its meaning. Include a picture as a visual connection.
Incomplete/broken/open means the circuit is not connected, so electricity cannot flow.
Incomplete/broken/open means the circuit is working perfectly and electricity flows easily.
Incomplete/broken/open means the circuit is always closed and complete.
Incomplete/broken/open means the circuit has extra wires for more electricity.
Write a description of the phrase 'Energy flow' that will help you understand and remember its meaning. Include a picture as a visual connection.
Energy flow is the movement of electrical energy through a circuit.
Energy flow is the process of water moving through pipes in a city.
Energy flow is the way sound travels through the air.
Energy flow is the movement of cars on a busy road.
A plastic wire would be a good conductor. Do you agree?
No, because plastic is an insulator and does not conduct electricity well.
Yes, because plastic allows electricity to flow easily.
Yes, because plastic is used in electrical wiring.
No, because plastic is a type of metal.
Electricity is used in which of the following ways?
Lighting homes
Growing plants without water
Making food without ingredients
Flying without fuel
What are the parts of a simple series circuit?
A simple series circuit needs a wire, a battery, and a bulb.
A simple series circuit needs only a battery and a switch.
A simple series circuit needs a bulb and a resistor only.
A simple series circuit needs a wire and a capacitor only.
A simple circuit needs a ______ and ______.
A simple circuit needs a wire and a bulb.
A simple circuit needs a book and a pen.
A simple circuit needs a table and a chair.
A simple circuit needs a fan and a window.
Who invented the first electric light?
Thomas Edison
Nikola Tesla
Humphry Davy
Benjamin Franklin
Who developed an efficient, electric, incandescent lamp?
Thomas Edison
Nikola Tesla
Humphry Davy
Benjamin Franklin
What type of circuit does NOT have a complete flow of electricity?
Open circuit
Closed circuit
Both circuits
None of the above
What type of circuit DOES have a complete flow of electricity?
Open circuit
Closed circuit
Both circuits
None of the above
Fill in the blank: An open circuit does ______ have a complete flow of electricity.
not
always
sometimes
often
Fill in the blank: A closed circuit ______ have a complete flow of electricity.
does
never
cannot
rarely
What is the source of electrical energy in a circuit?
Power Source
Resistor
Switch
Bulb
What is the conductor that all electrical energy follows to connect all parts of a circuit?
Path
Switch
Resistor
Bulb
What opens or closes the electrical circuit to allow energy to flow or stop flowing?
Switch
Bulb
Wire
Battery
What is the object or objects in a circuit that are being powered by the power source?
Load
Switch
Conductor
Resistor
Which part of a circuit is described as the source of electrical energy?
Path
Load
Power Source
Switch
The students were weighing a toy using weights and the double pan balance. The toy weighs as much as the total weight on the other pan. How do you know?
Because the pans are balanced when the weights equal the toy's weight.
Because the toy is heavier than the weights on the other pan.
Because the toy is lighter than the weights on the other pan.
Because the balance does not measure weight accurately.
Identify which of the circuits above is a closed circuit.
Circuit A
Circuit B
Circuit C
Circuit D
A closed circuit can be identified in diagrams 5, 6, 7, and 8 because:
the path for electric current is complete with no breaks.
the battery is missing from the circuit.
the wires are not connected to the bulb.
the switch is open, preventing current flow.
