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Unit 8
¡¡¡¡¡ELECTROSTATICS!!!!!
30
Physics
7th Grade
01/03/2013

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Cards

Term
What is electrostatics?
Definition
Electricity at rest
Term
What are atoms made of?
Definition
- Protons
- Electrons
- Neutrons
Term
What are the charges of particles?
Definition
P= +
E= -
N= 0
Term
Like charges ______.
Definition
repeal
Term
Different charges _______.
Definition
attract
Term
What is the force created by charge interactions called?
Definition
Electric forces
Term
What is stronger, the gravitational force or the electric force?
Definition
Electric force, DuhH ...|_
Term
Positive/negative refers to the _________________.
Definition
electrical charge
Term
Most atoms have ______________.
Definition
Neutral charge
Term
What do you call charged particle?
Definition
Ion
Term
When do you get an ion?
Definition
When electrons are added/subtracted
Term
Review Glass-Silk Example
Definition
¡¡¡¡¡I said to do it!!!!! ...|_ ¿¿¿¿¿Que tu no DO IT?????
Term
What is the equation for force?
Definition

      q1q2

F=K --------

     d

Term
What is represented by the q1 and the q2 in the equation for force?
Definition
Charges of the particles 1 & 2
Term
What is represented by k in the equation for force?
Definition
23
9x10
Term
What is the unit of charge?
Definition
Coulomb(C)
1C=6.25 billion billion
Term
Materials that give away electrons easily are called __________.
Definition
Conductors
Term
Materials where the elecrtons are tightly bound are called __________.
Definition
insulators
Term
What do you call materials that can behave like both conductors and insulators?
Definition
semi-conductors
Term
What are two ways that charging can occur?
Definition
1. Friction
2. Induction
Term
What happens in charging by friction?
Definition
Electrons "rub off"
Term
What happens in charging by induction?
Definition
Material is charged with no contact
Term
What is an electric field?
Definition
The space around any electrically charged body is filled with the electric field
Term

ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ

αβγδεζηθικλμνξοπρστυφχψω

Definition
Greek alphabet…Greek alphabet…Greek alphabet…
Term
 What is electric potential energy?
Definition
The energy a partical posseses due to its position in the electric field
Term
What is electric potential?
Definition
The amount of electric potential energy in a partical p;er unit of charge
Term
What is the unit of electric potential?
Definition
Volt (V)
Term

What does electric potential tell us?

 

Definition
 How much work can be done on a particle per unit of charge
Term
What is a device for storing EPE?
Definition
a capacitor 
Term
Are capacitors dangerous?
Definition
DuH  …L
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