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8th science 1st semester

Across
The combination of all forces acting on an object
The number of waves that occur in an amount of time
Particles move perpendicularly to the direction the wave travels
Change in position
How far something moves in a given time
Space and all of the matter and energy in it.
A disturbance that transfers energy form one place to another
Electromagnetic radiation that is a remnant of an early stage of the universe
Location to which you compare other locations
A force of attraction between objects that is due to their masses and the distances between them.
Carries individual bits of information in separate units of time. The signal is represented by the numbers 0 and 1
An apparent shift toward longer (red) wavelengths of light in an object's spectrum
Down
Material that attracts iron
The path that a body follows as it travels around another body in space
A push or pull
Happens when the sun Earth, and the moon forma a 90-degree angle. These tides have the smallest daily tidal range.
Rate at which velocity changes
Speed in specific direction
In this wave particles move back and forth in the same direction that the wave travels
An iron core wrapped with electrical wire
A wave that requires a medium to travel
The distance from any point on a wave to an identical point on the next wave
Tides that happen when the moon is between the sun and earth and when the moon is on the opposite side of Earth. Tides that have the largest daily tidal range.
States that the universe began with a tremendous expansion 13-15 billion years ago
A measure of how far the particles in the medium move away from the rest position
The area surrounding a magnet where forces can be detected
Location of an object
A coil of wire that carries an electric current, and therefore produces a magnetic field
Tendency of an object to resist a change in motion
Daily changes in the level of ocean water