# Motors and Generators - Robo-works.net

Electronics - Devices

Oct 7, 2013 (4 years and 8 months ago)

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ROBO EDUCATORS ELECTRONICS

Introduction to Electromagnetism/Generators/Motors

Note to the teacher: This organizer is designed to teach how electronic current can be used to generate a magnetic field
which is used in generators, motors, and solenoids. The

“Introduction to Electromagnetism/Generators/Motors” lessons are
intended to teach:

What is an LED Wiring techniques

Electromagnetism

Polarity

Electronic control using fuses and circuit breakers

What is a DC motor

What is a solenoid

Conservation of energ
y

What is EMF

How to calculate the value of amperage, voltage, and resistance in a series circuit

Mathematical concepts

Basic algebra
-

Ohm’s law, problem solving

Scientific concepts

Conservation of energy, magnetism, magnetic fields, polarity

Termin
ology: Electro Motive Force (EMF), Electromagnet, fuse, circuit breaker, compass

Lesson 6

Lesson 7

Lesson 8

Lesson 9

Lesson 10

Lesson

LEDs/Resistances

Wiring/connectors

Introduce current

Reinforce Ohm’s Law,

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magnetism and
electricity

charge to
motion/motion to
charge

magnetic field of
a moving charge

Review magnetism

Generating a
n electric
current

Fuses/circuit breakers

Right Hand Rule

Teacher demo

Teacher demo

Management/

Material Resources

Develop a PowerPoint
or other presentation
that shows multiple
solutions

PowerPoint of a
variety of wiring
solutions

PowerPoint of Diodes
and sample exercise

Battery

Wire

Strong magnet

Iron filings

Compass

Battery

Wire

Strong magnet

Two motors

PowerPoint demonstrat
ing
fuses/circuit breakers

Styrofoam cup

Paperclips

Small permanent
magnets

#28 enameled wire

1.5 volt battery

Teacher sheet for Electric
Motor

Soda straw

Small nail

#28 enam
eled wire

Compass

Handouts/Activities

Sketch schematic

Calculate voltage
drops and amperage.

Complete teacher
assigned lab with
varying resistance.

Build an
electromagnet

Magnetism

Magnetic
Observations

Electricity and
magnetism

Electricity and
magnetism2

Fuse activity
-

build a
circuit using a variety
of components

Robotics Educators
motor project

NASA Instruction to
build Electric Motor

Robotics Educators
Solenoid project

Lab Demo

Connect red LED

Burn out LED to
demonstrate the need
for current control

Electromagnet, motor
action with a wire,
magnetic fields

Two motors
demonstrating
generator

Teacher built working
demo of motor

Teacher built working
demo of solenoid

Assignments/Home
work

Complete teacher
assigned lab.

Complete teacher
assigned worksheet.

Develop a
PowerPoint
presentation or o
ther
presentation on how
motors work

Assessment/Notebo
ok Materials

Take notes

Sketch schematics

Complete handouts

Complete all teacher
Take notes

Sketch schematics

Complete handouts

Complete all teacher
Take notes

Sketch sc
hematics

Complete handouts

Complete all teacher
Take notes

Sketch schematics

Complete handouts

Complete all teacher
Take notes

Sketch schematics

Complete handouts

Complete all teacher
assigned labs

assigned labs

assigned labs

assigned labs

assigned labs

Extension Activity

Change
the LED color
and redo the lab.

Plot the curve of the
diode barrier

Right hand rule

Show with compass
and wire

Parallel/
Combination

Research examples of
where solenoids are
used

Math/Science/Other

National Standards

1)

LED’s

--

Intel Innovation
in education

w/ video clip

http://www.intel.com/education/design/session04/activity4.htm

Additional Intel activities located on the same page include: Basic Electrical Concep
ts, Turn it on/off (series/parallel circuits), and short circuits.

Technology Standards #13
Students will develop abilities to assess the impact of products and systems and
#16

Students will develop an
understanding of and be able to select and use energy

and power technologies.

Electronics Index

--

excellent site with all of the electronics basics. Links to pages with graphics and animations include: Components, Batteries

and LED’s, Switches,
Diodes
, Capacitors, Resistors,
Transistors

and much more.

http://www.technologystudent.com/elec1/elecex.htm

Technology Standard #16

Students will develop an understanding of and be able to select and use energy and power technologies.

Electromag
net Motor:
(NSTA 1b, 1e, 3d, 6a

NCTM 6c)

http://media.nasaexplores.com/lessons/01
-
027/9
-
12_1.pdf

Objective: Students will illustrate Faraday’s Law by constructing an electromagnet
motor.

9a) Teacher sheets: 50 minutes

http://nasaexplores.com/show_912_teacher_st.php?id=021231111008

9b) Student sheets: background, procedure, hands
-
on, evaluation

http://nasaexplores.com/show_912_student_st.php?id=021231111008

Properties of Magnetism:
(NSTA 1b, 1e, 3d, 6a)

http://media.nasaexplores.com/lessons/01
-
027/9
-
12_1.pdf

Objective: Students will design an experiment to determine the polarity of a magnet, display magnetic fields, and model indu
ced magnetism.

8a) Teacher sheets: 50 minutes
http://nasaexplores.com/show_912_teacher_st.php?id=021230160210

8b) Student sheets: Intro level, worksheets, questions

http://nasaexplores.com/show_912_student_st.php?id=021230160210

File Structure:
www.nasaexplores.com

--

National Standards
---

Science
--

2) Science as Inquiry

9
-
12 Targets

Abilities necessary
to
do scientific inquiry
http://nasaexplores.com/standards/sci_s2ea.php?standards=S2Ea

6)

Magnetic Observations:
(NSTA 2a, 3d)

http://media.nasaexplores.com/lessons/01
-
055/9
-
12_1.pdf

Objective: To determine the properties of magnets and their effects on objects.

11a) Teacher sheets: 50 minutes

http://nasaexplores.com/show_912_teacher_st.php?id=02127124015

11b) Student sheets: terminology, procedure, hands
-
on, evaluation

http://nasaexplores.com/show_912_student_st.php?id=02127124015

12)
Electricity and Magnetism:
(NSTA

2a, 3d)

http://media.nasaexplores.com/lessons/01
-
055/9
-
12_2.pdf

Objective: To construct an electrodynamic demonstrator unit (EDU) and observe and understand that a wire with electri
city flowing through it
can be made to move in the presence of a magnet.

12a) Teacher sheets: 50 minutes

http://nasaexplores.com/show_912_teacher_st.php?id=021217130221

12b)
Student sheets: History, graphics, experiment

http://nasaexplores.com/show_912_student_st.php?id=021217130221