Name ____________
Electrons
have a ___________ charge. Protons have a _____________
charge.
3. A circuit is
__________________________________________________
____________________________________________________________________________
4. What do you
need to make a circuit?
1.
2.
3.
5. What is the
difference between an open circuit and a closed circuit? Will electricity flow
through both types of circuits?
6. What are insulators and conductors? Give two examples of each.
7. Magnets have 2 poles – north and south. What would you expect these magnets to do?
|
N S |
N S |
8. In general, what kinds of materials are attracted to magnets? List some examples of objects that would be attracted to magnets and some that would not be attracted to magnets.
Fill in the blank.
Magnetic poles circuit electron proton same static Opposite conductors closed insulator different
1. If two objects push away from each other, then they both have the__________ type of charge.
2. _____________ _________ are the area of a magnet where the attraction is the strongest.
3. _______________ are materials that will allow electricity to flow through
them. An ____________ prevents the flow of electricity.
4. A circuit that has no breaks or places where the current can’t flow is called a(n) ________________ circuit.
Matching
1.This type of energy comes a. current electricity
from the sun
b. Thomas Edison
2. The ability to do work
c. solar power
3. Moving
electrical charge
d. circuit
4. Scientist who
invented the
lightbulb e. energy
5. Pathway for
electricity to
flow through