Electromagnetic Force

Introduction

Welcome Scientists!

We are going to understand more a how electricity and magnets work together! Will begin by looking at how energy is transfered and conserved. We will be continuing our scientific language by using our covered vocabulary (force, energy, kinetic etc.). We will also be creating visuals to represent the force of magnetism

Scientists, it is your job to understand how everything connects! Complete each task by reading the material, accessing your resources, and answering the questions that follow. After you're done you will be ready for your evaluation.

Autobots Rollout!

Task

Task 1

Use this link to answer the questions beloce

BBC Electricity and Magnetism http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/m agnets_electric_effects/activity.shtml

Questions:

1. Why is an iron core needed in an electromagnet?

2. How are electromagnets different to either temporary or permanent magnets?

3. What happens when you add more coils to the wire in an electromagnet? What else can you do to increase the magnetic field of an electromagnet?

Task 2

https://www.fossweb.com/delegate/ssi-wdf-ucm-webContent/Contribution%20Folders/FOSS/multimedia_2E/MagElec_MM_2E/activities/electromagnet_html5/index.html

This is an interactive simulation of an electromagnet. Your goal is to test the different factors that can change the strength of the magnet (i.e. how many fillings it can pick up). For each factor that you test you must decide on a standard to compare it against. This means that all other factors must remain the same while you test only one of them.

1. What is the effect of changing the....

a. Type of Wire:

b. Thickness of the wire:

c. AC or DC powersupply

d. Voltage:

e. Number of Winds in the wire:

2. Can you make the electromagnet pick up all of the iron fillings? What conditions did you need?

Task 3

In your science lab book draw 3 diagrams for the devices below!

Describe how an electric bell works

http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electri city_forces/magnets_electric_effects/revise5.shtml

How does a loudspeaker work?

http://electronics.howstuffworks.com/speaker6.htm http://www.explainthatstuff.com/loudspeakers.html

How is a magnet used inside of a simple AC generator?

http://www.pbs.org/wgbh/amex/edison/sfeature/acdc_insideacgenerator.html

Evaluation

Nice you made it through!

Your final task is take this short practice quiz before our graded quiz on Friday. Share your results with me and make any corrections to your work if you need to!

quizizz.com/join/quiz/5cd1ce3f73de2a001bacb0e3/start

Best

-Ms. Blair

Teacher Page

The following WebQuest was designed for my class to learn about the significance of the moon. The standards that were utilized for this site are as follows:

• MS-PS2-3. Ask questions about data to determine the factors that affect the strength of electric and magnetic forces.

• MS-PS3-5. Construct, use, and present arguments to support the claim that when the motion energy of an object changes, energy is transferred to or from the object.

This site is intended to be used at home as an assignment. The hope is that children will utilize and see the advantage of technology inside and outside of the classroom while still learning.