Directions: For this tutorial you are going to be working in a small group to review for the upcoming unit test on The Way Things Work – Electricity!  You will be answering questions together on a shared Google Doc, and as you answer those questions you will be creating a revision sheet that you will all be able to use to study from.  Make sure that you share your Google Doc revision sheet with all of your group members, as well as with me.  All group members and I need to have editing privileges on the document.

Your revision sheet should include answers to all of the questions below, as well as diagrams found online showing the different phenomena.  Make sure that you are asking questions of each other and of me as you go through this activity.  Remember, this is your study guide, so include as much detail as possible.  Also include the link to the sites from where you got the information that you are including in your revision sheet.  Good luck, and happy studying!

Revision Questions: Use the questions below to guide your revision.  You should be able to answer all of these questions thoroughly.  Make sure that each member of the group understands and can answer these questions.

1. The Atom
   1. Identify the charge and location of the three subatomic particles: protons, electrons and neutrons.
   2. Define atomic number and atomic mass, and explain how they are different.
   3. Describe metallic bonding and explain why elements that bond metallically are often good conductors.
2. Atomic Models
   1. Identify three different atomic models.
   2. Describe the evolution of atomic models.  In other words, how did atomic models change over time?
   3. Explain why it is necessary to have atomic models.
3. Electricity
   1. Define electricity.
   2. Define conductor and insulator.
   3. Describe the difference between a good conductor and a good insulator and give an example of each.
4. Static Electricity
   1. Define static electricity.
   2. Explain how to create a static charge.
   3. Explain why after rubbing a balloon on a wool sweater the balloon can stick to the wall.
5. Current Electricity
   1. Define current electricity.
   2. Explain the importance of electrons in current electricity.
   3. Explain why a lightbulb lights instantly when you flip the switch.
6. Circuits
   1. Define current, voltage and resistance.
   2. Calculate resistance of a circuit using Ohm’s Law.
   3. Explain why certain materials have more resistance than others.
   4. Explain why resistance makes a light bulb light up.
   5. Describe the uses of ammeter and voltmeters, including what both are measuring and the units of both.
   6. Describe the difference between series and parallel circuits.
   7. Draw and label circuit diagrams (using standard symbols) of series and parallel circuits including 2, 3 and 4 bulbs.
   8. Compare what happens to the amount of light produced when you add more lightbulbs to series and parallel circuits.
   9. Explain why there is a difference in amount of light produced by the bulbs in series and parallel circuits when you add more bulbs.

Useful Information: Use the tutorials, activities and presentations on the course webpage to help you create your study guide.  The following sites will be helpful as well:

1. GCSE Bitesize: Atomic Structure
2. GCSE Bitesize: Static
3. GCSE Bitesize: Electric Current
4. GCSE Bitesize: Series and Parallel Circuits