Electricity 1
Materials that allow electricity to move through it easily
Conductor
Materials that do not allow electricity to move through them easily
Insulator
When an object gains electrons, it becomes___________.
Negatively charged.
The flow of electrons is called
Electric current
Besides a plug in, give an example of an energy source
Battery
Plastic, glass, and rubber are good examples of
Insulators
Like charges will
repel
Most of the objects that we see around us are electrically ________.
Neutral
Copper is an example of _______.
A conductor.
All matter is made up of?
Atoms
The two types of electric charges are:
Positive charge and Negative charge.
When electric current flows along a closed path it forms a ______.
closed electric circuit.
What part of an atom can move from one atom to another?
Electrons.
What is the purpose of a switch?
The switch opens and closes the circuit.
When an object loses electrons it becomes ______________.
Positively charged.
What do we have inside the nucleus of an atom?
Protons and neutrons.
more coils of wire around a nail or metal rod.
The nucleus of an atom is negatively charged.
True or False?
False.
Plugging in your television would transform electrical energy to ___________ and ____________ energy.
radiant (light) and sound energy
Objects with opposite charges ____.
Attract.
To make an electromagnet, you need a wire, nail, and a ___________.
battery
What is the difference between an open circuit and a closed circuit?
Closed - electrons can flow and the circuit is working
Open - electrons cannot flow and the circuit is not working
When an object has an unequal number of +ve and -ve charges it is said to have _______.
Static electricity.
What happens when two objects rub against each other?
They gain or lose electrons.
True or False, turning on a fan is an example of transforming electrical energy to radiant energy.
False, it is electrical --> mechanical