Static Electricity and Friction
Charges and Electrons
Conductors and Insulators
Currents
Circuits
100
How can an object be given an electric charge?
By rubbing it on something else
100
How can an object become charged?
When electrons are rubbed from one object to another
100
What is a conductor?
Material that conducts electricity Ex: metals
100
What makes a bigger current flow?
Bigger voltage
100
Which are the two types of circuits?
Parallel Series
200
Which forces can electrically charge object produce?
Force of attraction or repulsion
200
Which charge does the object that gains electrons have?
negative charge
200
What is an insulator?
Materials that don't conduct electricity Usually non-metals
200
What is needed for a current to flow?
A complete circuit
200
What is a voltmeter?
Used to measure the voltage of the cell
300
What is electricity?
It is the movement of electrons
300
Which charge does the object that loses electrons have?
positive charge
300
Why do metals conduct electricity?
They contain electrons which are free to move
300
What is an electric current?
It is a flow of charge
300
What makes a series circuit?
a circuit with all the components connected end to end
400
What is friction?
the action of one surface or object rubbing against another.
400
What is a coulombmeter?
a digital meter used to show whether an object has a positive or negative charge
400
How do we get charges to flow from one place to another in a circuit?
We use wires that are made of metals, which are conductors.
400
How can you calculate an electric current?
By amperes A= coolants/seconds
400
What do the arrows of a circuit diagram represent?
Currents
500
Name two examples of static electricity
lightning rubbing a balloon to your head
500
Which charges attract and which charges repel?
opposite charges attract and alike charges repel
500
Why are wires covered in plastic?
so people won't get shocked if in contact with the wire
500
How can a current become smaller?
by adding a resistor to the circuit
500
What is a cell and what is the function of a switch?
A cell is the source of battery in a circuit A switch breaks a circuit to stop the current flow
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