Coulomb's Law
Coulombic Force is the same thing as electrostatic force. This force is caused by:
(a) Charge, (b) mass, (c) both, (d) neither
(a) charge
Draw field lines around one positive charge.
See board.
(arrows pointing away)
( Negatively / Positively ) charged Electrons are ( attracted to / repelled by ) ( Negatively / Positively ) charged Protons.
negatively
attracted to
positively
Potential Energy is the amount of _________ Energy an object could ________ if a ____________ force is allowed to act on it.
Kinetic
Gain
Non-contact
positively
fiction
The electrostatic force on an object will get stronger if the amount of charge ( decreases / increases ) or if the distance between the charges ( decreases / increases ).
increases
decreases
Draw field lines around a negative charge.
See board
(arrows pointing toward)
What type of force causes Electric Potential Energy to be converted into Electric Kinetic Energy?
Electrostatic
or
Coulombic
When opposite charges are pulled apart, their PE ( decreases / increases ).
increases
Your sweater becomes negatively charged when you rub your notebook on it. This means electrons moved from the ( sweater / notebook ) to the ( sweater / notebook ) due to ( conduction / polarization / friction ).
notebook
sweeter
friction
What is the electrostatic force between a 30 C charge and a -8 C charge 0.2 meters away?
- 5.4 x 10-5 N
Draw a negative charge above a positive charge. Leave a few inches of space between them. Then draw the field lines between and around them.
See board
The electrostatic force on an object will get weaker if the amount of charge ( decreases / increases ) or if the distance between the charges ( decreases / increases ).
decreases
increases
When opposite charges are pushed together, their PE ( decreases / increases ).
decreases
When a neutral sweater and neutral notebook are charged by friction, they will ( attract / repel ) since they become ( same / oppositely ) charged.
attract
oppositely
2 charges have 6 N of electrostatic force between them. If more friction causes the charge on one of them to become 3 times more, what would be the new amount of force?
18 N
Draw a negative charge above another negative charge. Leave a few inches of space between them. Then draw the field lines between and around them.
see board
Electric Field Lines show the direction that any added ( negative / positive ) charge would be pushed in any location.
positive
When 2 electrons are pulled apart, their PE ( decreases / increases ).
decreases
When a negatively charged sweater and a neutral bracelet are placed in contact, they will ( attract / repel ) since they become ( same / oppositely ) charged during conduction.
repel
same
2 charges have 6 N of electrostatic force between them. If they are pulled to a new distance 3 times further apart, what would be the new amount of force?
0.67 N
The distance between arrows ( decreases / increases ) as you move further away from a charge because ...
the amount of force gets weaker, and the density of arrows shows the strength of force
What type of force causes Electric Kinetic Energy to be converted into Thermal Kinetic Energy?
Friction
When 2 electrons are pushed together, their PE ( decreases / increases ).
increases
A neutral sock is polarized by a positively charged sweater. They will then ( attract / repel ) due to ... Describe what happens to the charges and why.
attract
electrons in the sock are move to the side of the sock closest to the sweater