Name ____________

Science Review: Electrical Energy

1. What is the definition of energy?

2. What is static electricity?

3. There are 2 kinds of electrical charge, what are they?

Electrons have a ___________ charge. Protons have a _____________

charge.

4. Draw a circuit.

5. A circuit is __________________________________________________

____________________________________________________________________________

6. What do you need to make a circuit?

1.

2.

3.

7. What is the difference between an open circuit and a closed circuit? Will electricity flow through both types of circuits?

8. What are insulators and conductors? Give two examples of each.

9. Magnets have 2 poles – north and south. What would you expect these magnets to do?

N S

N S

10. What is a magnetic field?

11. 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. The tiny part of an atom that has a positive charge is called a (n) _____________.

4. _______________ are materials that will allow electricity to flow through

them. An ____________ prevents the flow of electricity.

5. 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 b. Thomas Edison

3. Moving electrical charge c. solar power

4. Scientist who invented the d. circuit

lightbulb

e. energy

5. Pathway for electricity to

flow through