Class
7:
Friday, 2/6/25Warm Up:
How can you start a fire with a 9 Volt Battery and some steel?
Today:
- Return Quizzes
- Test review
- Continue Circuit Notes and pHet activity PDF Version Filled-in Notes Video from 2023 class
- Current and Circuits, part 2 (PDF) VIDEO1 VIDEO 2
Until Next Class: Test over the material on the 3 quizzes. If you want, you can drop the three quiz scores.
Class
6:
Wednesday, 2/4/25Warm Up:
How does an electric fence work?
Today:
- Return Quizzes
- Quiz -- Electric field
- Test review?
- The new thing -- electric current and circuits
- Circuit Notes and pHet activity PDF Version Filled-in Notes Video from 2023 class
Until Next Class: Test next Tuesday over the material on the 3 quizzes. If you want, you can replace the three quiz scores with your test score.
Class
5:
Monday, 2/2/25Warm Up:
There is a "pith ball" hanging next to the Van de Graaff generator. The pith ball is foam that is covered with a conductive, metallic paint. What do you think will happen when the Vand de Graaff generator builds up a strong negative charge? Why?
Today:
- Quiz -- Conductors and Insulators
- Notes: Electric Charge. Video in the playlist.
- Practice Questions on p. 13-14
- Unit 5 Handout: Electric Charge (PDF)
Until Next Class: Last quiz of the unit -- like p. 13-14 in the handout
Class
4:
Thursday, 1/29/25Warm Up:
What do you think will happen if we make John Travoltage rub his foot on the floor and then hold his hand by the doorknob? Why?Today:
- Return Quizzes
- Finish Notes: Conductors and Insulators. Everybody tries the electrophorus. Does the electrophorus have to be touching the foam in order to work? Video is int he playlist.
- Shock yourself, repeatedly, with the electrophorus. Explain what's happening to the charges and what the net charge of the plate is.
- Practice Questions : p.11-12
- Learn about Electric Fields
- Unit 5 Handout: Electric Charge (PDF)
Until Next Class: Quiz next class, like pages 11-12
Class
3:
Tuesday, 1/27/25Warm Up:
How does a Van de Graaff Generator Work?Today:
- Quiz 1: Electric Charges
- Notes: Conductors and Insulators
- Unit 5 Handout: Electric Charge (PDF)
Until Next Class: None
Class
2:
Friday, 1/23/25Warm Up:
Which of the following can we say with certainty? Why?
A) The balloons have the same net charge
B) The cat and the foam "peanuts" have opposite net charges.
C) Both A and B are correct.
D) None of these answers is (are) correct.
Today:
- Finish Clear Tape Activity
- Complete Review on P. 9-10
- Unit 5 Handout: Electric Charge (PDF)
Until Next Class: Quiz -- like p.9-10 of handout
Class
1:
Wednesday, 1/21/25Warm Up:
When you rub a balloon on your hair, why does the balloon then stick to the wall?
Today:
- Look at midterm exams.
- New Unit -- Electric Charges
- Take notes (see video on class playlist)
- Start Clear Tape Activity
- Unit 5 Handout: Electric Charge (PDF)
Until Next Class: Quiz