Card Set Information
What happens to electrically neutral objects when they gain or lose electrons?
They become charged
What is the loss of unbalanced electric charge by an object?
Materials through which electric charges move easily through are called?
Materials through which electric charge cannot move easily are called?
What are 3 examples of electric insulators?
Some of the best conductors of electric charge are ?
An electrical charge is surround by an ??
Scientists know that there is an ___________________ region around charged ojects that apply an electric force.
What is the force an electric field applies to another charged object?
2 negative objects ??
repel each other away
2 positive objects ??
repel each other away
A positive object and a negative object ??
Attract each other
What is the loss of an unbalanced electric charge?
What is a material in which electric charges connot easily move?
What is a material in which electric charges easily move?
What is the force that two electrically charged objects apply to each other?
What is the invisible region around a charged object where an electric force is applied?
An electric current that only flows in one direction is a ?
An electric current that frequently changes direction ia an ?
Sources of energy can come from what 4 things?
3. Solar cells
4. Fuel cells
Energy transformations occur when current flows through a circuit that has ?
Electric resistance is a measure of how ?? it is for a current to pass through a material.
Material with ??? electrical resistance transform more electric eneergy into other types of energy, such as a ???
Most conducotrs in a circuit are in the form of ??
What are the 2 types of electric circuits? How many paths do each have?
not sure I got this right, hard to read your handwriting
2. parallel -- two
What is the amount of energy used to move a
coulamb(what is this?) of electrons through the circuit?
The circuit could also contain a ?? which transforms electric energy into?
A machine that transforms mechanical energy to electrical energy
A measure of how difficult it is for an electric current to flow in a material
Some magnetic materials such and iron and steel are grouped in