Waves
What is wavelength?
The distance between two consecutive points in phase on a wave. (Crest to Crest/ Trough to Trough)
Which two layers of Earth are responsible for generating Earth's magnetic field?
Outer & inner Core
What is a solid state of matter?
A definite shape and volume.
What type of energy is the sun?
Light Energy
What tool is used to measure temperature?
A thermometer.
Explain the Doppler effect.
What are Earth's three main (compositional) layers?
Crust, Mantle, Core
What happens to the particles in a gas?
The particles are far apart and move freely.
What is kinetic energy?
The energy of motion.
What is the freezing point of water in Celsius?
0°C.
Explain Reflection, Refraction, and absorption
Refraction changes light's direction when it moves between mediums.
Reflection occurs when light bounces off a surface, like a lake reflecting mountains.
Absorption happens when a material (such as trees or rocks or dark colors) soaks up light and doesn't reflect or transmit it.
The layers of the Earth are composed of different materials that are separated by their _________________.
densities
What is the main characteristic of liquids?
It has a definite volume but takes the shape of its container.
What is Potential Energy?
Stored energy waiting to be used.
How does temperature affect the state of matter?
As temperature increases, matter may change state from solid to liquid or liquid to gas.
What is frequency?
The number of waves that pass a point in one second.
Why is it important to repeat an experiment?
To verify results and improve accuracy.
What is evaporation?
The transition from liquid to gas.
What is the Law of Conservation?
Energy cannot be created or destroyed, only transformed.
This is the average kinetic energy of the particles in a substance.
Temperature.
Explain wave speed.
The speed at which a wave travels through a medium.
In an experiment, what is the variable that you change called?
An independent variable
What is sublimation?
The process where a solid turns directly into a gas.
Energy that comes from the movement of electrons is called?
Electrical Energy.
What temperature scale is most commonly used in the United States?
Fahrenheit.