1. Do Now /20/14
1) A heat engine can do Joules of work. If 25 Joules are lost to the environment, how much heat is added to the engine?
Write this at the very top of your page, you will be creating your own C-Notes today.
4/29/2019

2. Do Now /20/14
1) A heat engine can do Joules of work. If 25 Joules are lost to the environment, how much heat is added to the engine?
450.5 Joules – 25 Joules = J added to engine.
4/29/2019

3. Divide your notes into 3 sections (notes, summary, questions)
Electrostatics Notes
Divide your notes into 3 sections (notes, summary, questions)
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4. Electricity Notes
electricity: study of the invisible forces of electric charges
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5. Electrostatics Notes
Electric charges come from tiny particles inside everything
Protons are tiny particles with a positive charge
Electrons are tiny particles with a negative charge
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6. Electrostatics Notes Two positive protons will repel (push away)
Two negative electrons will repel (push away)
A negative electron will attract a positive proton (pull closer together).
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7. GOLDEN RULE: Like charges repel (push away) and opposite charges attract (pull closer together)
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8. Like charges repel; opposite charges attract.

9. In your notes, complete the table
Particles
Electrostatic Force (write repel or attract)
Two electrons
Two protons
Two neutrons
One proton and one electron

10. How does the balloon work?
The balloon is rubbed on the hair, and picks up electrons.
The hair loses electrons.
The balloon is __________ charged, and the hair is __________ charged.
The two are attracted!!
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11. Positive vs. Negative charge
When an object has more electrons than protons, we say it is negatively charged.
When an object has less electrons than protons, we say it is positively charged.

12. Van Der Graaf Generator.
Stop Here for our Demonstrations with the Van Der Graaf Generator.
4/29/2019