Atoms
Atoms 2
Forces of Nature
Magnetic Forces
Electric Forces
Images
100
Atoms are
the smallest unit of matter
100
Gain of electrons =
negative charge
100
_________ _________ the attractive and repulsive forces between two poles.
Magnetic Forces
100
All matter is made of _________.
atoms
100
Electric charge is made up of ________ and _________.
protons, electrons
100
atom
200
Atoms contain
protons, neutrons, electrons
200
Loss of electrons =
positive charge
200
__________ _________ occur when ions create attractive and repulsive forces.
Electric Forces
200
Negatively charged ________ spin around atoms.
electrons
200
When ________ flow in a circuit, a ________ is produced.
electrons, current
200
#2 is an 
electron
300
Protons have a _________ charge.
Electrons have a _________ charge.
Neutrons are _________.
positive
negative
neutral
300
A charged atom is an ____.
ion
300
_____________ a force combining both electric and magnetic forces.
Electromagnetism
300
When ________ all spin in the ________ direction, they create an invisible force known as _________.
electrons, same, magnetism
300
Unlike a permanent magnet, the strength of an electromagnet is easily changed by
changing the amount of electric current or voltage that flows through it or adding more wire coils
300
#3 is 
a neutron
400
If the number of protons and electrons is the same, the atom is ___________.
neutral
400
Why is this atom a positive ion?
Because it has 7 protons and 6 electrons
400
Does the diagram represent a magnetic force or electric force?
magnetic force
400
The power of a magnet is known as the _________ ________ of that magnet.
magnetic force
400
Unlike a permanent magnet, the strength of an electromagnet is easily changed by
changing the amount of electric current or voltage that flows through it or adding more wire coils
400
#4 is
a proton
500
Atoms tend to gain and lose __________ easily.
electrons
500
If an atom has a positive, it will be attracted and bond to an atom with a ________ charge because _________ __________.
Negative
opposites attract
500
Does the diagram represent a magnetic force or electric force?
electric force
500
Magnets have two _______, north and south.
poles
500
In a circuit the ________ gives energy to _______ and pushes them around a circuit from the _______ terminal to the ________ terminal of the cell.
battery, electrons, negative, positive
500
The electric field is _________ if it moves outward from the charge and _________
if it moves toward the charge.
positive, negative