12. What type of material should the wires be made of in order for electricity to flow through it?
Electrical Conductors (metals)
Bonus 1: True or false: All circuits need a power supply.
True
19. How can this kid affect the motion of the wagon?
He can push or pull it.
10. Once the cellphone is on, name 3 energy transfers that happen within the phone.
Electrical to Sound, Electrical to Light, Electrical to Mechanical (vibration), Electrical to Thermal
13. In this circuit, will the bulb turn on?
no, the yarn is an insulator
2. A change in energy from one form to another.
E- Energy transformation
6. A three-dimensional representation of a person or thing or a proposed structure, typically on a smaller scale than the original
A- Model
7. The energy an object has due to its motion
G- Mechanical energy
4. Energy that is stored in matter and that can be released by a chemical reaction
D- Chemical energy
1. What is needed to do or cause a change?
F- Energy
8. What energy transfer is happening for the solar panel to get energy?
Solar energy to electrical energy
16. What can we replace yarn with to make this circuit work?
An electrically conductive wire. (metal)
15. What material is causing this circuit to not work?
Yarn is not a conductor
5. Energy that can travel and be seen by the human eye
B- Light energy
11. Look at the following circuit and answer the questions. How many bulbs will light up in this circuit? _______________ Does this circuit work? _____________. If not, why does it not work? ___________________________________________
None will light up. This circuit does not work. The wires are not hooked up to both battery terminals.
22. What must be done to turn on the green bulb and the bell?
Switch 1 must be closed
9. What energy transfer is happening at B, in order for the phone to get charged?
Electrical Energy to Chemical Energy
14. In this circuit, is the switch open or closed?
Closed
21. A pull or push force is required to move the wagon. The wheels rotating are an example of what type of energy?
Mechanical Energy
20. In order to increase the speed that this kid can move the wagon, what must he do?
He can pull or push with more force, or decrease the friction by moving the wagon on a smoother surface
17. Which energy transformation caused the bread to toast?
Electrical to thermal (heat)
23. What must be done to turn on the 2 blue bulbs?
Switches 2 and 3 should be closed
18. Which energy caused the bread to pop up after it has been toasted?
Electrical to Mechanical
3. A flow of electrical charge through a conductor.
C- Electrical energy
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