Show:
What Charge?
Inside an Atom
Scientific Laws
Forces
Experiments with Electricity
100
What particle inside an atom has a neutral (no) charge?
a neutron
100
Name two particles of atoms?
[any 2]: protons, neutrons, electrons
100
The Law of Electric Charges says that opposites ___.
attract
100
The size of an electric force is determined by the amount of each _____.
charge
100
Charging by wiping electrons from one object to another uses: F __ __ __ __ __ __ N
friction
200
A proton has what charge?
positive
200
Where in the diagram are electrons located?
in clouds outside the nucleus
200
If a student rubs wool across two balloons so that each balloon gains electrons, the two balloons will:
repel
200
What are the two types of electric charge?
positive and negative
200
A Volt meter measures the amount of __ of an object.
electric charge
300
What particle has a negative charge (electricity)?
electron
300
Where are neutrons and protons located?
inside the nucleus of an atom
300
According to what Law do like charges repel?
The Law of Electric Charges
300
What is the force between charged objects
electric force
300
Materials through which charges move easily are called:
conductors
400
If an object gains electrons it will have what charge?
negative
400
A normal atom has the same number of what two particles?
protons and electrons
400
What does the Law of Electric Charges say?
Like charges repel; opposite charges attract.
400
Where is an electric field located?
around a charged object
400
The thing we change in an experiment is always called the:
variable OR independent variable
500
If an object loses electrons it will have what charge?
positive
500
What charge does each particle of an atom have?
protons: positive electrons: negative neutrons: neutral
500
If one balloon is rubbed with wool so that it gains electrons; and the other balloon is put into water so that it loses electrons, the two balloons will:
attract
500
What is electricity?
moving electrons
500
Materials through which charges cannot move easily are called?
insulators