Question | Answer |
What is a closed circuit? | a continuous, closed path for electricity to flow through |
What does repel mean? | push away |
What does repel have to do with static electricity? | This happens when you have two statically charged items which have the same charges. |
What is the difference between an open and closed circuit? | An open circuit will not work because there is a gap in the transfer, possibly from an open switch. A closed circuit has no gaps and will work. |
Who invented the light bulb? | Thomas Edison |
List some conductors. | nail, wire, foil, paperclip |
What is the difference between conductors and insulators? | Conductors will allow the flow of energy to go through them; insulators stop the flow of energy. |
What does attract mean? | come together |
What does attract have to do with static electricity? | When two items are statically charged and they have opposite charges, they will be attracted to each other. |
Why might a flashlight not work? | There may be a gap. There might not be a strong enough source. There could be an insulator in the path or same charges could be connected. |
What labels do you need on a circuit? | bulb (receiver), battery (source), wire (transfer), and switch |
What does it mean if a circuit is open? | There is not a path for the electricity to flow. The switch could be up (open). |
What is the term for the tiny, horizontal wire inside a light bulb? | filament |
What are the scientific terms for the positive, negative and neutral charges? | protons (+), neutrons (0), electrons (-) |
What causes something to have a static charge? | Static charges result from two objects exchanging charges; resulting in an even amount of protons (positive charges) and electrons (negative charges). |
In a circuit, what is the scientific term for the wire? | transfer |
In a circuit, what is the scientific term for the light bulb? | receiver |
In a circuit, what is the scientific term for the battery? | source |
What are the steps of the scientific method? | 1. Ask a question 2. State your hypothesis 3. Identify control/variables 4. Test your hypothesis 5. Collect & record data 6. Interpret data 7. Draw a conclusion 8. Go Further |
What might happen if we added 2 more batteries to the simple circuits we created? Explain why this might happen. | The bulb might burn out because there is more electricity being sent to the bulb than it can handle. |
Would a light bulb work if both wires are connected to the positive side of the batter? Why or why not? | No- the bulb is not receiving a negative charge. |
Which of these items would be the best conductor in a circuit: foil, a large nail, or a pencil? | a large nail because it is a stronger (more solid piece of metal) |
Explain 2 things you should be careful of to keep yourself safe around electricity. | Do not combine liquids/water and electricity; do not touch open wires; do not touch the metal of a working circuit; do not put metal into a working circuit. |
How could you make a battery last longer? | Put it in the freezer or turn battery-operated items off when finished. |
What are the charges of each of the three atoms? | protons are positive; electrons are negative; neutrons are neutral/no charge |
What are the 2 key words to use when writing a strong hypothesis? | if, then |
A continuous path for the flow of electricity is called what? | circuit |
Name 5 things which use electricity. | lamps, blow dryers, pencil sharpeners, phones, TVs |