Electric Forces
A material such as glass, plastic, or wood that cannot transfer electrons easily
Electric Insulator
Chemical reactions that absorb thermal energy.
Endothermic reactions.
Substances that are produced by the chemical reaction.
Products.
A circuit with a high voltage sources transforms _________ electric energy to other energy forms than a circuit with a low voltage.
More.
An electric circuit with only one path for an electric current to flow.
Series circuit.
Tall buildings have these built to protect them from lightening, and direct the energy into the ground.
Grounding rods (grounding)
The minimum amount of energy needed to start a chemical reaction.
Activation energy.
One compound breaks down and forms two or more substances.
Decomposition.
A measure of how difficult it is for an electrical current to flow through a material.
Electrical resistance.
What is the purpose of a GFCI device?
Protects you from electric shock when an outlet is near a water source.
Electrons flow from an object with a greater concentration of electrons to an object with less electrons, until both object are of equal electron concentration.
Conduction
Enzymes in our stomach that break down proteins and foods are an example of _____________________, that speed up the process chemical reactions.
Catalyst
Chemical reaction where one element replaces one element in a compound.
Single-replacement.
The number for a single coulomb.
6 quintillion (6 x 10^18)
The wiring in this school is an example of what kind of circuit?
Parallel circuit.
How two negatively charged particles interact.
Repel each other.
Why does increasing the pressure of a gas increase the rate of the chemical reaction?
Adding pressure forces the particles closer together, causing them to collide into each other more.
What is the Law of Conservation of Mass?
The total mass of the reactants before the chemical reaction will be the same as the total mass of the products after the chemical reaction.
According to Ohm's law, with an equal or same current the voltage is greater across the device with ________________?
Greater resistance.
The amount of current in a circuit depends on what?
The number of devices in a circuit.
The ___________ between two objects directly affects the strength of the electrical force between them.
Distance.
Why does a larger surface area of an object increase the reaction rate of a chemical reaction?
There are more particles on the surface of the solid being affected by the chemical reaction.
How do we know when an equation is balanced?
When all elements in an equation have the same number of elements on either side of the arrow.
Using Ohm's Law, find the current of the equation using the measurements below.
Resistance = 64Ω
Voltage = 8.0V
.125A
How many people in America die of surprise electric shock every year?
500