Magnetism & Electricity Review Sheet
Study Tips:
- Read all the science materials in your folder when you take it home the weekend before the test.
- Review the website and check out the links for additional information
- Answer the questions below. If you do all this, you'll do great on the exam!
- Draw and label the basic parts of an atom and make sure that you show the electrical charge of those parts of the atom that are charged.
- You should be able to look at the periodic table and tell me what the atomic number of an element means. If I ask you to look up an atomic number, you should be able to tell me what element it is (or vice versa).
- What is the difference between an element and a molecule?
- List the types of objects, elements and alloys that are and are not attracted to magnets.
- What do we mean by the North and South poles of a magnet? Which poles attract each other and which poles repel each other?
- What is electricity?
- What are the two main forms of electricity? Can you give examples of each?
- Can you describe how electrons flow with these two types of electricity?
- What charges attract each other? What charges repel each other?
- Draw and label a simple, safe circuit. What makes it safe? Make sure you show the direction of electron flow.
- What is an open circuit? What is a closed circuit?
- Name, draw and label the two basic kinds of circuits. Describe how these two kinds of circuits are similar and how they are different? (Remember what is important about the orientation and voltage of the power source in the parallel circuit) Guaranteed to be on the test!
- How is the Lazy River like a circuit?
- Which circuit allows you to have one light off and one light on when it is attached to a power source?
- Which type of circuit allows you to increase the voltage?
- In what type of circuit is it important to have the power sources be the same voltage?
- Is the direction of the power source important in either of the two types of circuits? Why?
- What does it mean that a bulb is 'burned out'? Why do some strings of Christmas lights all go out at the same time when one bulb is burned out, while some strings of Christmas lights all stay on except the burned out bulb?
- Can you list a few different kinds of loads?
- How is the electricity we use in our homes made? Where is it made?
- What are the parts of a generator and how does it work?
- How does a turbine help generate electricity? What are the different ways to turn a turbine? Which ways cause air pollution? Which ways are more environmentally friendly?
- What is a conductor and how does it work? Can you list things that make good conductors of electricity? What materials are not good conductors of electricity?
- What is an organic form of electricity? Can you give some examples?
- Why do an organism's cells make good conductors?
- Name the type of cell that conducts electricity from your brain to you muscle?
- True or False? You should take shelter under a tree during a lightning storm. It is safe to dry your hair with a hair dryer while you are soaking in the bathtub.
- WHY is a frayed cord unsafe? Can you explain this in terms of good and bad conductors?
- What should you do when an electrical storm approaches?
- What are some important points to remember about electrical safety?