Matter
Anything that has mass and takes up space
What is matter?
The speed and direction of a speeding object
What is velocity?
The distance between 2 crests or troughs
What is wavelength?
An attractive force between two masses by which a planet or other body draws objects toward its center.
What is Gravity?
The hypothesis that the continents slowly move across the Earth surface
What is continental drift?
A small particle that is the building block of matter
What is an atom?
A measure of the change in velocity during a period of time
What is acceleration
The number of waves that pass by a point each second
What is Frequency?
Huge collections of gas, dust and stars held together by gravity
What are galaxies?
The preserved remains or traces of an organism that lived in the past
What are fossils?
The subatomic particles and their charges.
What are positive protons, neutral neutrons, and negative electrons?
Example: A rocket engine pushes hot gas downward and the gas pushes the rocket upward
What is Newton's Third law of Motion?
Waves in which the particles move up and down
What are Transverse waves?
A spherical object that orbits the Sun but does not have more mass than objects in nearby orbits.
What is a dwarf planet?
The force in the mantle that drives plate motion
What are convection currents?
A mixture in which the substances are not evenly mixed/fully combined
What is a heterogenous mixture?
Example: When a car stops suddenly, the passengers lurch forward.
What is Newton's First law of Motion?
Example: Hearing the echo of fans cheering in a gym
What is Reflection?
The apparent surface of a star where light energy radiates into space.
What is the photosphere?
The point beneath the Earth surface, we're rock first brakes under the stress and causes an earthquake
What is the focus?
The difference between an element and a compound
What are elements made of only 1 type of atom compared to compounds made of two or more elements that are chemically combined
Example: A grocery cart with more items is harder to accelerate than an empty cart.
What is Newton's Second Law of Motion?
The change in direction of a wave when it changes speed as it travels from one material(medium) to another.
What is Refraction?
Occurs when light from an object moving away from an observer is stretched, shifting its wavelength to the redder end of the spectrum. Indicates that galaxies are moving away from us.
What is Redshift?
Vibrations that travel through earth, carrying the energy released during an earthquake
What are seismic waves?