Name: _________________________

Slides:



Advertisements
Similar presentations
MagnetsMagnets By: Mrs. Mason All About Magnets Magnets come in many shapes and sizes. A magnet can be made by rubbing a piece of iron or steel many.
Advertisements

By: Newton Lo Physics 420. A.K.A. The Paper Cup Phone Why do you hear things on the other end? What is sound anyways?
Lesson 5: What Makes an Electromagnet?
1.A magnet can attract magnetic material (e.g. iron, steel, cobalt or nickel) or another magnet placed near it 2.There is a magnetic field around a magnet.
Electricity How do motors work?. Motors A motor takes advantage of electromagnetism If you have two magnets the north end of one will attract the south.
ECE 201 Circuit Theory I1 Magnetic Field Permanent magnet –Electrons spinning about their own axis in a particular alignment Charges in motion –Electric.
 Know that magnetism is the force of attraction or repulsion of magnetic materials. Surrounding a magnet is a magnetic field that applies a force, a.
Electromagnets Grade 8.
2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Static Electricity Ohm’s Law and.
Electromagnetic Force
Speaker Foundations of Technology Speaker © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™
II. Uses of Magnetic Fields (p ) Electromagnet Speaker Motor
The appliance of science Lesson objectives: To explain how an electromagnet works. To discuss how a relay uses a small current to switch on a much larger.
Hosted by Mrs. Jansen Vocab 1Vocab 2 True or False Random
Question: Why are magnets so important?.
Magnetism Part 2: Magnetism From Electric Currents PHYSICAL SCIENCE.
There is a electromagnetic coil with an open centre or tube through it. There is a iron rod that is at one end of the coil. The bar also has a spring on.
Battery Paper Clip Coiled wire, resting in curve of paper clip End of wire with one side stripped of coating (not to scale) Disk Magnet Side View Front.
Magnetism from Electricity Objectives: Describe the relationship between an electric current and a magnetic field. Identify common devices that demonstrate.
Speaker: A device that converts electrical signals into sound
Electricity and Magnetism
Electromagnets Science Unit 1 Lesson 5 4 th Grade Miss Young.
FI5 Notes. FI5- What is an electromagnet? Electromagnets are magnets that have their magnetic field produced by electric current. The magnetic field disappears.
Welcome Back Scientists! Today: 1. Return Electromagnets Inquiry Scores 2. Discuss the Revision Process 3. Interactions between permanent and Electromagnets:
Chapter 6 Lesson 3 Magnetism. Magnetism is the ability of an object to push or pull on another object that has the magnetic property. Magnets have two.
And Electricity! Chapter 8 Section 2.  1820: Hans Ørsted happened to have compass close to a wire with current flowing  The compass needle deflected.
IOT POLY ENGINEERING 3 6 Dec 2011 Speaker Project.
Magnetic Fields Lab. 1/16/15 Magnet warm-up Notes – magnets NOVA video – magnetic storm.
Making an Electromagnet Mr. Ahearn What’s an Electromagnet? The basic idea behind an electromagnet is extremely simple: By running electric current.
Electromagnets D. Crowley, 2008.
What is Electromagnetism Chapter 3 Section 1 Pages
Essential Questions How do moving electric charges and magnets interact? What is the electromagnetic force? How do an electromagnet’s properties affect.
Magnetism. What is Magnetism? magnetism is the force of attraction or repulsion of magnetic materials. Surrounding a magnet is a magnetic field that applies.
Section 8.2: March 22 nd, 2011 Electric Current and Magnetism Electricity and magnetism are related. Early scientists hypothesized that the electric.
The effect of current on a magnet In 1819, Hans Christian Øersted placed a compass needle near a wire in a circuit. When a switch in the circuit was closed,
Magnetism & Electric Currents CH Electric Currents Produce Magnetic Fields A wire with a current flowing will create a magnetic field Metal filings.
Introduction to electromagnets
Electric circuits (and making speakers)
Lecture 58 – Lecture 59 Electricity and Magnetism Ozgur Unal
                                                                  Electro Magnets.
E.Q. - How are magnetism & electricity interrelated?
Magnetism & Electricity.
Magnetic Forces.
Electromagnetism.
Electromagnets.
Section 2: Electricity and Magnetism
Section 2: Electricity and Magnetism
BASIC PRINCIPLE When electricity flows in a wire a magnetic field is formed around the wire. The stronger the current the stronger the magnetic field will.
17.3 Electric Motors and Generators
Draw a diagram that shows the magnetic fields that result when like poles of two magnets are close to each other when unlike poles are close. Use lines.
Magnets and Electromagnets
There is a magnetic field around a magnet
Magnets and Electromagnets
Electromagnets How they work, and how to make them more powerful
Magnetic Field Permanent magnet Charges in motion
Investigation: Electromagnets (CPO 15.2)
The Motor effect Learning Outcomes Most students should be able to:
Electricity and Magnetism
How a Speaker Works.
Electromagnet Intro
Magnetic Field Permanent magnet Charges in motion
Magnetism.
Electromagnetism.
Magnetism from Electricity 18.2
Magnetism.
Magnetism Magnets… Produce _____________________________, invisible ______________________ that _________________ (push) or _____________________ (pull)
II. Uses of Magnetic Fields (p ) Electromagnet Speaker Motor
Why aren’t the paperclips attracted to the magnet?
Presentation transcript:

Name: _________________________ Schematic Experiment – list steps Theory Observations The speaker has a coil of wires that, when an electrical current is applied to it, it makes an _____________________ field. The speaker has a permanent _________ in it. The electromagnet is attached to a _______ __________. When powered, the electromagnet is attracted to the permanent magnet causing the paper cone to ________________. 1. Describe the sound you hear. 2. What do you do to cause the sound to happen? 3. In complete sentences, write what you learned about a speaker in a circuit.