These are the two fundamental rules at the base of all electrical phenomena. (The simplest thing you should know)
What is opposite charges attract and like charges repel?
100
. A repelling force occurs between two charged objects when
The charges of the two objects are alike
100
This person was the first to discover that lightning and electricity in the laboratory were the same phenomenon.
Who is Benjamin Franklin?
100
9 x 10^9 Nm^2/C^2
Why is this number significant?
What is Coulombs Law
100
What is the magnitude of the electric force between a proton and an electron that are 0.04 m apart? The charge on a proton is 1.6 x 10-19 C and the charge on an electron is -1.6 x 10-19 C.
1.44 x 10 ^-25
200
Objects that have as many protons as electrons. What is the charge?
What are neutral objects?
200
The process in which there must be a touch or a spark from the object doing the charging to the object being charged. (Type of charge transfer)
What is charge by conduction?
200
These types of things allow easy transfer of charge through them
Conductors
200
Two charges are separated by 5 cm. If the strength of one charge is tripled while the distance stays the same, by what factor will the electric force be changed?
What is 3 times greater
200
Draw the field lines between a positive and a negative charge.
(Will Look at Pictures)
300
The only charge that can move in a solid material.
What are electrons?
300
The process by which the object responsible for electrifying does not transfer any charge to the object being electrified, but polarizes it from a distance
What is charge by induction?
300
The Van De Graaf machine when turned on gained a _______________ charge.
What is a negative charge
300
A 5 C charge is placed in an electric field and feels a force of 20 N. What is the electric field strength acting on the charge?
What is 4 N/C
300
The magnitude of the electric force is proportional to this.
What is the product of the charges and the distance between them.
400
The two factors that affect the force between two electric charges.
What are the amount of charge and the distance between them?
400
The volt is a unit for the measure of
Potential Difference
400
Electric forces are strongest when the charges are _____.
What is closest together
400
Of the three types of particles that make up an atom, this one does NOT feel the electric force.
What is the neutron?
400
Charge A and charge B are 2 cm apart and repel each other with a force of 12 N. If charge A and B were separated so that they were twice as far apart (4 cm), what would be the new force between them?
3 N
500
An object is said to be charged if it lost or gained these particles.
What are electrons?
500
Two oppositely charged particles are held in place near each other. When the particles are released, they will most likely ______.
Accelerate towards each other (Attract)
500
A difference between electric force and force of gravity is that electric force includes ____.
What are repulsive forces
500
In an electric field, 0.90 joules of work is required to bring 0.45 coulombs of charge from point A to point B. What is the electric potential difference between points A and B?
2 V
500
In a field diagram (Field lines), the strength of the electric field is given by this.
What is the density of the field lines? (The amount of lines drawn)