AP Physics 2 - Electric Charge and Electric Field

0.0(0)
Studied by 5 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/25

flashcard set

Earn XP

Description and Tags

Physics

Electric Charge, Field, & Potential

Last updated 7:13 PM on 9/22/22
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai

No analytics yet

Send a link to your students to track their progress

26 Terms

1
New cards
Electric Charge
fundamental property of matter, positive and negative, protons and electrons
2
New cards
Static electricity
an object became charged as a result of rubbing
The accumulation of excess electric charge on an object
3
New cards
law of conservation of electric charge
no net electric charge can be created or destroyed
4
New cards
two types of charge
positive and negative
unlike charges attract
like charges repel
5
New cards
Ion
atom that loses or gains electrons
6
New cards
Polar
charge is not distributed equally but is neautral
Having a pair of equal and opposite charges.
7
New cards
Conductor
material that allows charge to move easily e.g.metal
8
New cards
Insulator
materials that restrict flow of charge
9
New cards
Semiconductor
category between conductors and insulators
10
New cards
Electroscope
device used to detect charge
11
New cards
Electrometers
more modern device used to detect charge
12
New cards
Coulomb
(C) SI unit of charge
13
New cards
Coulomb's Law
F=kQ1Q2/r^2 (k=8.988x10^9Nm^2/C^2)
14
New cards
elementary charge
the smallest unit of electric charge that is possible in ordinary matter.
e=1.602x10^-19C
15
New cards
Permittivity of free space
ε₀(Permittivity of free space)= 8.85x10^-12 C^2/Nm^2
16
New cards
Point Charges
charge which spatial size negligible compared to other distances
17
New cards
Field
extends outward from a charge in all directions
18
New cards
test charge
a charge so small that the force it exerts does not significantly alter the distribution of those other charge that creates the field
19
New cards
Electric Field
E=F/q (force per unit charge)
20
New cards
the magnitude of the electric field a distance r from a point charge Q is
E=kQ/r^2
21
New cards
Superposition Principle
net force on any one charge will be vector sum of forces due to each of the other
22
New cards
Electric Field Lines
indicate the direction of the force due to the given field on a positive test charge (show direction of the field)
23
New cards
electric dipole
electric field lines due to two equal charges of opposite sign
24
New cards
Between two closely spaced oppositely charged, parallel plates
E=constant
25
New cards
gravitational field
The influence that a massive body extends into the space around itself, producing a force on another massive body, It is measured in newtons per kilogram (*N/kg*).
26
New cards
Electrostatics
study of interaction between electric charges that are not moving