Electricity 1
Atoms are made up of?
Electrons, protons and neutrons.
Materials that do not allow electricity to move through them easily
Insulator
When an object gains electrons, it becomes___________charged.
Negatively charged.
The flow of electrons is called
Electric Current
Give an example of an energy source
Battery
Materials that allow electricity to move through it easily
Conductor
When electric current flows along a closed path it forms an ______.
Electric circuit.
Most of the objects that we see around us are electrically ________.
Neutral
Copper is an example of _______.
A conductor.
A source, a wire, two devices and a switch form a _____________.
series circuit
The two types of electric charges are:
Positive charge and Negative charge.
Objects that have the same number of positive and negative charges are
Electrically neutral.
increases
Objects with opposite charges ____.
Attract.
When an object loses electrons it becomes ______________.
Positively charged.
Plastic, glass, and rubber are good examples of
Insulators
A source, two devices, a switch and two wires form a _____________________
parallel circuit
The nucleus of an atom is negatively charged.
True or False?
False.
Current is the number of _________ passing through a point
Electrons
__________ describes the relationship between resistance, current, and voltage
Ohm's Law
A .................................. opens and closes the electric circuit.
switch
Electrons cannot flow and the circuit is not working is an ____________
Open circuit
When an object has an imbalance number of + and - charges it is said to have _______.
Static electricity.
At constant voltage, an increase in resistance ___________ current
decreases
In a parallel circuit, total __________ will be the sum of each branch
current