
Generators
Presentation
•
Science
•
7th Grade
•
Practice Problem
•
Easy
+13
Standards-aligned
Laura O'Neill
Used 9+ times
FREE Resource
12 Slides • 5 Questions
1
Generators
2
Let's Check Out Some Statistics!
Look at the Circle Graphs
to See where Electricity comes from around the world!
3
a machine that creates electrical energy to power objects
This type of generator is especially important during severe weather conditions.
Generator
4
Match
Let's check our past vocabulary we will be discussing today.
kinetic energy
mechanical energy
solenoid
heat
energy of motion
energy that moves an object
a coil of wire that acts as a magnet
transfer of thermal energy
energy of motion
energy that moves an object
a coil of wire that acts as a magnet
transfer of thermal energy
5
Multiple Choice
What type of circuit is shown?
series
parallel
neither
6
Notes on
page 37
7
a device that produces electricity by converting mechanical energy into electricity
Generator
8
9
Law of Conservation of Energy says energy cannot be created or destroyed, only changed or converted to a different form of energy.
Remember....
10
All generators have:
1- turbine
2- solenoids
3- conductive wire
Structures of a Generator
11
1- Solenoid - magnetic solenoids generate electrical energy as turbines spin past them
2- Turbine - a structure that turns in a circle with magnets attached
3- Conductive Wires that carry the electrical energy to where it is used.
Parts to a generator
12
Match
Match the part to its function.
turbine
solenoid
conductive wire
provides kinetic energy input
generates electrical energy
transmits electrical energy
provides kinetic energy input
generates electrical energy
transmits electrical energy
13
Wind moves the blades and creates mechanical energy which then turns it into electrical energy.
Wind turbines
They are important during severe weather.
Gasoline Powered Generator
Water turns the turbine and creates electrical energy.
Water Powered Generator
Nuclear fission creates heat which in turn makes steam that turns the turbine to create electricity.
Nuclear Generator
Types of Generators
14
Multiple Choice
What role do magnets play in generators?
magnets provide kinetic energy input for generator
magnets produce electric current when spin near solenoid
magnets allow the electrical energy to flow to the load
magnets connect the fuel source to the turbine
15
Multiple Choice
Generators convert one type of energy into another. What type of energy is present in the generator's turbines?
potential energy
mechanical kinetic energy
electrical energy
chemical energy
16
Let's play a game to prepare for Wednesday's Quiz!
17
See
you tomorrow
Great Job Today!
Generators
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