force
acceleration
what is increasing speed, decreasing speed, or changing direction
magnet
hat is anything that will attract iron and materials that contain iron
wave
what is a disturbance involving the transfer of energy from place to place
mass
what is the amount of matter in an object
space shuttle``
what is the spacecraft that is used to carry a crew into and back from space
force
what is a push or a pull
DC
What is direct current
medium
what are the medium through which a wave travels
solar system
what consist of the sun, planets, their moons, and other objects
space probe`
what is the spacecraft that carries scientific instruments that collect data but no crew
friction
what is the force surfaces exert on each other
AC
What is alternating current
mechinical waves, transverse waves, longitudinal waves
what are the three types of waves
sun
what is the largest planet in the solar system
crust
sliding friction, static friction, rolling friction, fluid friction
what are the three types of friction
generator
what is a device that transforms mechanical energy into electrical energy
crest
what is the high point of a wave
wavelength
what is the distance the crest of one wave and the crest of the next wave
epicenter
what is the point on the surface directly above the focus of an earthquake
gravity
what is a force that pulls objects toward each other.
transformer
What is two coils of insulated wire wrapped around an iron core.
trough
what is the low point of a wave
telescope
what is the instrument that we use to see far off stars and planets
erosion
what is the process by which natural forces move weathered rock and soil from one place to another