1.1-2: Static & Current Electricity
1.3: Electrical Safety
Buildings are designed to protect us during electrical storms. This video shows how buildings seemingly attract the lightning bolts.
Explain what is happening scientifically. |
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1.4: Dry and Wet Cell Batteries
1.4 Dry & Wet Cell Batteries | |
File Size: | 1243 kb |
File Type: | pptx |
Section Review
- What occurs to a balloon when it is rubbed vigorously on someone’s hair? Draw a diagram to support your answer
- Describe the Law of Electrical Charge
- Describe what would happen when someone stands on an insulated platform and touches a Van de Graaff generator? What occurs when another person reaches out to touch the person standing on the platform? Use a diagram to support your answer if necessary.
- Describe what would happen in a community if the flow of current was interrupted in a circuit (ie, a downed power line).
- What is a short circuit? What are the potential risks of a short circuit?
- In a circuit (such as those from the circuit lab) what would be the load? The wires, the battery, the bulb or the switch?
- What is potential difference? What device is used to provide the potential difference in a circuit?
- Describe the function of a fuse.
- Current deals with the flow of electrons. As such, draw a circuit with a dry cell battery and label the direction of flow. Draw a simple wet cell (such as those created in our lab) and describe the flow of electrons (from the negative electrode, through the load to the positive electrode in an electrolyte solution).
- A series of cells connected together produces a…
- What are some tips and tricks for minimizing risk when dealing with electricity? Explain how they keep you safe.
- What is electroplating? Draw and electroplating cell used to place a coat of nickel on an iron bar. If you have time, set up a lab to demonstrate this (assuming Ms C can find the materials in the disaster room… science supply closet)
- What is electromagnetic induction. Why do you think it led to modern electrical inventions?