1. Electricity and Magnetism
Chapter 5

2. Static Electricity
The build up of electrons( negative charge) on objects
Protons-positive charge
Electrons-negative charge

3. Negatively Charged
An object has a negative charge when it has more electrons than protons
An object that is positively charged has more protons than electrons

5. Static Electricity & Balloons
Electrons are transferred
from your hair to the balloon
Now the balloon has
a ____________ charge

7. Charge Induction
The rearrangement of charges

8. Static Electric Discharge
Occurs when “extra” electrons in a negatively-charged object “jump” through the air into another object

9. Magnetism
Magnet: a piece of metal that can attract, or pull, other metals
Magnetism: the force that magnets use to pull other metals

10. Magnetic materials: materials that are attracted to magnets
Non-magnetic materials: materials that are not attracted to magnets

12. Electroscope

15. Magnetic Field
The region in which a magnet’s “pull” can be felt by magnetic materials

18. Induced magnetism: the type of magnetism that magnetic materials have when they are in contact with a magnet

19. Activity
In how many paperclips can you create an induced magnetism?

21. Electric Field
The region in which the push or a pull of an electron or a proton can be felt by other particles

22. Electric Field between a proton & an electron

23. Electric Field between 2 protons

24. Electric Field between 2 electrons

25. Electric Current
Flow of millions of electrons through an electric wire
Electrons flow towards positive charge

26. Electrical Potential Difference
The difference in charge between two materials
For example, one material may be positive & the other negative. There is a difference in their charges.

27. Measuring Electricity
Coulomb
Ampere
Volt
Watt

28. Coulomb Coulomb: equals the charge of six quintillion electrons
Named after Charles Coulomb

29. Ampere Ampere: a unit that tells us how many
electrons are going past a certain point
every second
1 ampere= 1 Coulomb per second
Named after Andre Ampere

30. Volt
Measures the strength of the “push” that a generator or battery gives to an electric current
Named after Alessandro Volta

31. Watt Measures how much electrical power an appliance uses
Named after James Watt

33. Circuit
Path for electrons to travel

34. 2 types of circuit
Series
parallel