HW: Start U7 Vocab cards Next Test: Quiz on 3/9 Exam 7 on ...

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HW: Start U7 Vocab cards

Next Test: Quiz on 3/9

Exam 7 on 3/28

Why it matters in LIFE:

Part of being a

functional human

being is being able to

understand what’s

happening in the world

around you!

Why it matters in THIS CLASS: Our Goal = 80%

Mastering today’s lesson (focused

participation, asking questions, etc)

is the first brick that will help us

reach our goal for this unit, and

eventually for the year

By the end of today, IWBAT…

• Understand Electrostatics

•Differentiate between

conductors and insulators

TEKS:

5(C) describe and calculate

how the magnitude of the

electrical force between two

objects depends on their

charges and the distance

between them

Topic:

Electrostatics

By the end of today, IWBAT…

•calculate electric force

between two point charges

using Coulomb’s law

WHAT IT MIGHT LOOK LIKE ON A TEST:

https://www.youtube.com/

watch?v=3FpjcOWwiI4

ATOMS

These are usually

balanced, making

the overall atom

neutral.

Atoms are made up of protons (+), neutrons

(neutral), and electrons (-)

ELECTRON’S CHARGE, e-

(Units of Coulombs (C))

e- = 1.6 x 10 -19 C

A lightning strike has

about 20 -30

Coulombs of charge!

WHAT IT MIGHT LOOK LIKE ON A TEST:

But what happens

if they become

unbalanced?

aka: excess or shortage of e-

Caused by a tiny charge imbalance

resulting in net positive or

negative charge on an object.

STATIC ELECTRICITY

STATIC ELECTRICITY

Opposites Attract!

INSULATORS VS. CONDUCTORSInsulators (non-conductors) Conductors

Charges are stuck where you put them Charges are able to move freely &

spread out

Ex: wood, rubber, glass Ex: metals, water, human body

*Semi-conductors are

somewhere in between*

VOCAB CARDS

LIGHTNING

ROUND!

EXPERIMENT 2 (10 MIN)

With your trapezoid table!

Explain the difference between conductors and

insulators when it comes to how they handle

charges.

EXIT TICKET (DOL)

What was one thing you did really well today?

Where is one area where you can improve?

ON THE BACK OF YOUR E.T.