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Generators

Generators

Assessment

Presentation

Science

7th Grade

Practice Problem

Easy

NGSS
MS-ESS1-1, MS-PS3-1, MS-ESS2-1

+13

Standards-aligned

Created by

Laura O'Neill

Used 9+ times

FREE Resource

12 Slides • 5 Questions

1

Generators

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2

Let's Check Out Some Statistics!

Look at the Circle Graphs
to See where Electricity comes from around the world!

3

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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

5

Multiple Choice

Question image

What type of circuit is shown?

1

series

2

parallel

3

neither

6

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Notes on
page 37

7

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a device that produces electricity by converting mechanical energy into electricity

Generator

8

9

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Law of Conservation of Energy says energy cannot be created or destroyed, only changed or converted to a different form of energy.

Remember....

10

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All generators have:
1- turbine
2- solenoids
3- conductive wire

Structures of a Generator

11

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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

13

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​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?

1

magnets provide kinetic energy input for generator

2

magnets produce electric current when spin near solenoid

3

magnets allow the electrical energy to flow to the load

4

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?

1

potential energy

2

mechanical kinetic energy

3

electrical energy

4

chemical energy

16

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Let's play a game to prepare for Wednesday's Quiz!

17

​See
you tomorrow

Great Job Today!

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Generators

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