Download TITLE OF LEARNING OBJECT What are the physics

SUBJECT
SCIENCE
TITLE OF LEARNING
OBJECT
GRADE
11th GRADE
LEARNING UNIT
HOW ARE WE TRANSFORMING OUR PLANET?
What are the physics theories needed for constructing a Maglev train?
CURRICULAR AXIS
Our physical environment
STANDARD
To explain the forces between bodies as interactions determined by electric charge and
COMPETENCIES
mass.
LEARNING OBJECTIVES
1. To interpret and establish the relationships between electric and magnetic
phenomena.
2. To create graphic representations of the manifestations of electric and magnetic
fields.
3. To describe electromagnetic phenomena and their relationships to other physical
phenomena.
SKILLS/ KNOWLEDGE
LEARNING FLOW
Sk 1: To establish the relationships between Newton's law of universal gravitation
and Coulomb's law.
Sk 2: To establish the relationships between magnetic field, electric field, and the
force affecting charged particles in movement and at rest.
Sk 3: To represent electric and magnetic fields through field lines.
Sk 4: To explain how electric current is generated from a variable magnetic field.
Sk 5: To explain the relationship between gravitational field and electric field.
Introduction
Objectives. The teacher introduces the objectives and establishes additional ones if
needed.
Development
ASSESSMENT
GUIDELINE
Stage
Introduction
Learning flow
Introduction
Development Development
Activity 1. Electric forces (Skill: 1 y 2).
Activity 2. Magnetism (Skill: 3, 4 y 5).
Abstract
Homework
Evaluation
Glossary
Vocabulary box
Bibliography
The student will calculate the force attracting or repelling two objects, and establish the
relationship between electricity and magnetism.
Teaching/Learning Activities
Recommended
Resources
The teacher will present the Maglev train as an example in
order to explain concepts of electricity, magnetism and the Interactive
relationship between the two.
resources
Animation
Sk 1: To establish the relationships between Newton's law of
universal gravitation and Coulomb's law.
Sk 2: To explain the relationship between gravitational field and
electric field.
Electric forces
PThe teacher will introduce the subject matter by showing
the formula for Newton's law of universal gravitation. Within
this context, an analogy to the force of attraction between
two electrically charged particles will be made.
Learning activity
Interactive
resources
Animation
Fill in the missing words in the following sentences:
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Coulomb's law establishes a proportion to the ______ between
charges.
The electric force is much stronger than the ________ force.
The coulomb (C) is a unit of measure that determines the
number of _________ charging an object.
Interactive
resources
Using Coulomb's law, calculate the forces present on the Image and text
following charges and indicate whether they are attractive or
repulsive:
𝑞1 = 3𝜇𝐶 𝑞2 = −8𝜇𝐶
𝑟 =2m
Answer: -0,054 N attractive.
𝑞1 = 60𝜇𝐶 𝑞2 = 36𝜇𝐶
𝑑 =30mm
Answer: 7000 N Repulsive.
Student material
Remember that…
Due to the fact that there are no naturally occurring elements with Interactive
resources
the charge 1C, we always use fractions, i.e.:
Ludic infographic
micro-coulomb= 𝜇𝐶 = 1𝐶 × 10−6
nano-coulomb=nC= 1𝐶 × 10−9
pico-coulomb=pC=1 𝐶 × 10−12
Sk 3: To represent electric and magnetic fields through field lines.
Sk 4: To explain how electric current is generated from a variable
Interactive
magnetic field.
resources
Sk 5: To explain the relationships between gravitational field and
electric field.
Animation
Magnetism
The teacher will show that there other forces such as magnetism at
work in nature, through examples such as Earth constituting a giant Interactive
magnet. The concepts of electric and magnetic fields will also be resources
explained. The concepts should be connected, giving way to
electromagnetism. The concept of electromagnets will be defined, Image and text
and finally the Maglev train will be discussed.
Learning activity
Match the following concepts:
(1)
m
Magnetis
(1) Force generated by the movement of
electrically charged particles.
(2)
Electroma (2) A device generated by electric current.
gnet
(3)
Electric
field
Abstract
Abstract
(3) Area determined by the influence of
electric forces.
An infographic will be used to summarize the relevant information Interactive
regarding electricity, magnetism, and the electric and magnetic resources
fields.
Assignment/
homework
Task
Annexed in this file.
Infographic
The homework will be presented to the students.
Resource
Watch the following video and answer the subsequent questions:
Student material
[Evans Electric]. (10/02/2008). WORLDS FASTEST TRAINS MAGLEV
"capable"
of
3,500
km/h [Embedded
video].
https://www.youtube.com/watch?v=aIwbrZ4knpg
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Evaluation
What are the advantages of Maglev trains compared to other
types of trains?
How is magnetic force harnessed for the movement of the train?
What are the disadvantages of the Maglev system?
The students will be encouraged to take the evaluation in the Interactive
Learning Object
resources
Evaluation
Answer the following multi choice questions:
1. Coulomb's law states that the electric force between charged
particles is inversely proportional to:
A. The charge of the particles.
B. The mass of the particles.
C. The distance between the particles.
Evaluation
D. The square of the distance between the particles.
2. Two spheres with equal charge repel one another when separated
by distance a. When the distance between them doubles, the
force is reduced to:
A.
B.
C.
D.
1
1
1
1
/
/
/
/
4
6
9
12
Indicate true or false for the following statements:
3. There are magnets with only one pole. ( )
4. An electric charge generates an electric field. ( )
5. In magnetism, equal poles do not repel, as opposed to the case of
equally charged electric charges. ( )
Fill in the missing words:
6. An ____________ is a ________ generated by inducing electric
________ through a wire coil.
a. field-magnet-current
b. magnet-current -electromagnet
c. electromagnet-magnet-current
d. field-electromagnet-current
Glossary

Electric field: a vector field that associates to each point in Resource
space the Coulomb force experienced by a unit electric charge.
text
Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Electric_field

Magnetic field: the magnetic effect of electric currents and
magnetic materials.
Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Magnetic_field

Electromagnetism: a branch of physics which involves the study
of the electromagnetic force, a type of physical interaction that
occurs between electrically charged particles.
Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Electromagnetism
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Levitation: the process by which an object is held aloft, without
mechanical support, in a stable position.
Retrieved on 24/06/2016 from https://en.wikipedia.org/wiki/Levitation
Vocabulary
box
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Maglev: a type of high-speed train that runs on magnets
supported by a magnetic field generated around the track : from
mag (netic) lev (itation).
Compass: an instrument for determining directions, as by means
of a freely rotating magnetized needle that indicates magnetic
north.
Coil: a conductor, as a copper wire, wound up in a spiral or other
form.
Junkyard: a yard for the collection, storage, and resale of junk.
Harness: to bring under conditions for effective use; gain control
over for a particular end.
Retrieved on 25/06/2016 from http://www.dictionary.com
Bibliography
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Annexed 1. Abstract
Hewitt, P. (2004). Física Conceptual . México : Pearson
Educación.
Lewis, T. (2015). What is Magnetism? Liivescience. Retrieved
from: http://www.livescience.com/38059-magnetism.html
(S.a). (s.a). Electric Field Lines. Physics Clasroom. Retrieved
from: http://www.physicsclassroom.com/class/estatics/Lesson4/Electric-Field-Lines