Waves
Measured by meters/cycle
What is wavelength?
Homes are usually wired this way
What is a parallel circuit?
Protons and neutrons make up this part of the atom.
What is the nucleus?
The chemical bond formed when two atoms SHARE electrons
What is a covalent bond?
A material through which electrons do NOT flow easily
What is an insulator?
This occurs when a wave changes its speed as it passes through a different medium/material
What is refraction?
This tool measures the amount of current (only in series circuits)
What is an ammeter?
Atoms of the same element that have different numbers of neutrons
What is an isotope?
One element replaces a similar element in a compound
What is Single Replacement?
The force or push that causes electric charges to move
What is voltage difference?
An echo is an example of this sound wave behavior.
What is reflection?
TRUE or FALSE - Increasing the temperature of the wire will increase the resistance of the wire.
TRUE
The smallest known particles that make up protons and neutrons
What is a quark?
This states: Matter can neither be created nor destroyed, it can only change forms.
What is the Law of Conservation of Mass?
Electric charges always flow from _____ areas to _____ areas
Negative to Positive
This type of wave requires a medium to travel through
What is a mechanical wave?
This contains a piece of metal that MELTS if it gets too hot in order to open the circuit and stop the flow of electricity
What is a fuse?
An element with 5 protons, 6 neutrons and 8 electrons has an atomic number of ____________.
What is 5?
When 1 reactant breaks down into 2 or more products.
What is Decomposition?
Providing a path that allows electric charges to travel directly into the Earth rather than traveling through a building.
What is grounding?
What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10m?
What is 250 m/s?
In a series circuit, if you add 2 more light bulbs, but keep the same single battery, what will happen to the brightness of the light from the bulbs?
The light from the bulbs gets dimmer.
An element with 5 protons, 6 neutrons and 8 electrons has a mass number of _________.
What is 11?
These 2 elements are always products of combustion
What are Carbon Dioxide (CO2) and Water (H2O)?
What is the voltage difference that flows through a copper wire if a current of 0.75 amps is flowing through it? The resistance of the wire is 10 ohms.
V = 7.5 V