# ELECTRICITY.

## Presentation on theme: "ELECTRICITY."— Presentation transcript:

ELECTRICITY

Electricity: a continuous flow of negative charges called electrons
All electricity flows through a circuit Electricity: a continuous flow of negative charges called electrons

Circuit

Conductors and Insulators
Conductor: a material that allows electricity to flow through it Insulator: a material that does not allow electricity to flow through it

Group Activity Let’s discover what materials are conductors and what materials are insulators Categorize the materials as conductors or insulators Let's try and see!

What did we discover? Conductors are usually: Insulators are usually:
Metals Insulators are usually: Rubber Plastic Wood

Circuits: Circuits can be open or closed Open 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

Closed Circuit Open Circuit End day 1

Series Circuit Series Circuit: a circuit with only one possible pathway for electricity to travel

Series Circuits Power Source Switch Circuit Light bulb

Group Activity Checklist Place everyone into a group
15 minutes to complete

Example 1:

Example 2: End day 2

Parallel Circuits 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 Circuit A parallel circuit is an electrical circuit with multiple pathways for electrons to travel through End day 3

Series vs. Parallel Similarities: Differences:
switch, power source, light bulbs, circuit wire Differences: a series circuit has one pathway, but a parallel circuit has two or more

Discussion Where do we see these circuits in everyday life?
What appliances use a series circuit and what appliances use a parallel circuit? End day four

Electricty Energy Electricity can be transformed into three different types of energy: thermal, radiant, and mechanical What do you think are the definitions of each type? Start day 5

Thermal Energy Electricity can be transformed into thermal energy
Thermal energy is energy that produces heat What electrical appliances produce heat?

Radiant energy is light energy Examples?

Mechanical Energy Electricity can be transformed into mechanical energy Mechanical energy is everything that runs or does a task. Examples?

Partner work 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

Discussion What did you put under radiant?

Discussion What did you put under thermal?

Discussion What did you put under mechanical?

REVIEW GAME 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

Question 1 An electric current is created by a continuous flow of __________? Answer: Negative charges or electrons

What is the pathway taken by an electric current called?
Question 2 What is the pathway taken by an electric current called? Answer: Circuit

Question 3 Is this an open or a closed circuit? Answer: Open Circuit

Question 4 What is a conductor?
Answer: A material that allows for the flow of electricity

Question 5 The rate at which energy flows depends upon the material’s ____________ Answer: Reisistance

What type of circuit has multiple pathways?
Question 6 What type of circuit has multiple pathways? Answer: Parallel Circuit

Give me an example of an insulator.
Question 7 Give me an example of an insulator. Answer: rubber, plastic, wood, glass

Question 8 What kind of circuit allows for the movement of electrical energy? Answer: A Closed Circuit

What is a series circuit?
Question 9 What is a series circuit? Answer: A circuit with only one pathway for the electrical current

Question 10 What are the three types of energy electricity can be transformed into? Answer: Thermal, Radiant, Mechanical

Question 11 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 12 Give an example of an appliance that uses radiant energy.

Question 13 Give an example of an appliance that uses mechanical energy.

Question 14 Give an example of an appliance that uses thermal energy.

Question 15 Two people Draw a series circuit.

Question 16 Label the series circuit that was drawn.

Question 17 Two people Draw a parallel circuit.

Question 18 Name an appliance that uses a series circuit.

Question 19 Name an appliance that uses a parallel circuit.

Question 20 What do all circuits have?
Answer: power source, switch, light bulb, wire/ pathway