Wednesday, 28 November 2012

Ohm's Law P8

Today we're going to start working on the electricity assignment for physics.  Complete the following on paper, then hand it in with a plastic pocket:

  1. Draw a circuit diagram with the parts listed on the assignment sheet. Use the symbols as shown on this page.
  2. Use some photos from the shared area to show how different circuits are made (copy and paste these into a word document).
  3. Write down the equation from this interactive, then use it to solve the first 3 questions that follow. Write the working out as well as the answers.
Make sure you name all your sheets and keep them in the plastic pocket you are given.

Tuesday, 20 November 2012

Ohm's Law

Today we're going to get ready for teh next assignment which we'll complete in class next week. Answer the following in yoru books:
  1. What is resistance in a circuit?
  2. Copy Ohm's Law into your books, including the units.
  3. What are 2 things that affect the current in a circuit? (Use the image above)
  4. Draw the symbols for a battery, light bulb, ammeter and voltmeter
  5. What do series and parallel circuits mean?
  6. How do ammeters get connected to a circuit?
  7. Show what a voltmeter connected to a circuit should look like using circuit symbols (use the link above):
  8. What is the unit for resistance?
  9. How could you calculate the resistance in a circuit?
  10. Try this activity, or try and complete the one from last week!

Tuesday, 13 November 2012

Electricity

The next assignment will be on electricity. Answer these questions in your books:
  1. What particles move to create electricity?
  2. Are electrons positive or negative?
  3. What is static electricity?
  4. Watch this video. How can static electricity be dangerous?
  5. Watch this animation. What does current measure?
  6. What does voltage measure? Use the link above.
  7. List three ways that electricity can be generated:
  8. What are some problems associated with using fossil fueals like coal to produce electricity? Use the link above:
  9. Try this activity.  What charges attract each other? What charges repel each other?
  10. If you have time, try and build a city using less fossil fuels.