all electricity flows through a circuit electricity: a continuous flow of negative charges called...
TRANSCRIPT
ELECTRICITY
All electricity flows through a circuit
Electricity: a continuous flow of negative charges called electrons
Circuit
Conductor: a material that allows electricity to flow through it
Insulator: a material that does not allow electricity to flow through it
Conductors and Insulators
Let’s discover what materials are conductors and what materials are insulators
Categorize the materials as conductors or insulators
Let's try and see!
Group Activity
Conductors are usually:◦ Metals
Insulators are usually:◦ Rubber◦ Plastic◦ Wood
What did we discover?
Circuits can be open or closedOpen Circuit: Any circuit in a break in it that does not allow for the flow of electrons
Closed Circuit: a complete circuit that allows for the flow of electrons
Circuits:
Open Circuit
Closed Circuit
Series Circuit: a circuit with only one possible pathway for electricity to travel
Series Circuit
Series Circuits
Light bulb
Power Source
Circuit
Switch
Checklist Place everyone into a group 15 minutes to complete
Group Activity
Example 1:
Example 2:
Create a parallel circuit Can the electrons travel to both light bulbs?
◦ YES! Now remove one of the light bulbs. What do we create by doing this?
◦ A break in our circuit Can our electrons still travel to the other
light bulb and get through the circuit?◦ Yes! Why?
Because our circuit has multiple pathways
Parallel Circuits
A parallel circuit is an electrical circuit with multiple pathways for electrons to travel through
Parallel Circuit
Similarities: ◦ switch, power source, light bulbs, circuit wire
Differences: ◦ a series circuit has one pathway, but a parallel
circuit has two or more
Series vs. Parallel
Where do we see these circuits in everyday life?
What appliances use a series circuit and what appliances use a parallel circuit?
Discussion
Electricity can be transformed into three different types of energy: thermal, radiant, and mechanical
What do you think are the definitions of each type?
Electricty Energy
Electricity can be transformed into thermal energy
Thermal energy is energy that produces heat
What electrical appliances produce heat?
Thermal Energy
Electricity can be transformed into radiant energy
Radiant energy is light energy Examples?
Radiant Energy
Electricity can be transformed into mechanical energy
Mechanical energy is everything that runs or does a task.
Examples?
Mechanical Energy
Work with a partner to categorize your list of appliances into three categories: radiant, thermal, mechanical
Each person should do their own list – use your partner to discuss the category of each appliance
Partner work
What did you put under radiant?
Discussion
What did you put under thermal?
Discussion
What did you put under mechanical?
Discussion
We are going to have a review competition. Two teams Team with the most points at the end of the
game wins What do you win you ask?
◦ Something small but AWESOME
REVIEW GAME
An electric current is created by a continuous flow of __________?
Answer: Negative charges or electrons
Question 1
What is the pathway taken by an electric current called?
Answer: Circuit
Question 2
Is this an open or a closed circuit?
Answer: Open Circuit
Question 3
What is a conductor?
Answer: A material that allows for the flow of electricity
Question 4
The rate at which energy flows depends upon the material’s ____________
Answer: Reisistance
Question 5
What type of circuit has multiple pathways?
Answer: Parallel Circuit
Question 6
Give me an example of an insulator.
Answer: rubber, plastic, wood, glass
Question 7
What kind of circuit allows for the movement of electrical energy?
Answer: A Closed Circuit
Question 8
What is a series circuit?
Answer: A circuit with only one pathway for the electrical current
Question 9
What are the three types of energy electricity can be transformed into?
Answer: Thermal, Radiant, Mechanical
Question 10
What is the main difference between a series and a parallel circuit?
Answer: A series circuit only has one pathway, but a parallel circuit has multiple pathways.
Question 11
Give an example of an appliance that uses radiant energy.
Question 12
Give an example of an appliance that uses mechanical energy.
Question 13
Give an example of an appliance that uses thermal energy.
Question 14
Two people Draw a series circuit.
Question 15
Label the series circuit that was drawn.
Question 16
Two people Draw a parallel circuit.
Question 17
Name an appliance that uses a series circuit.
Question 18
Name an appliance that uses a parallel circuit.
Question 19
What do all circuits have?
Answer: power source, switch, light bulb, wire/ pathway
Question 20