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10 terms

scince vocab quiz Zigler

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gravity
a force of attraction between objects that is due to their masses
friction
a force that opposes motion between two surfaces that are touching
trajectory
the curve described be a projectile, rocket, or the like in its flight
speed
the rate at which an object moves; it depends on the distance traveled and the time taken to travel the distance
velocity
the speed of an object in a particular direction
motion
an objects change in position over time when comparied to a reference point
potential energy
the energy of positoin or shape
kinetic energy
the energy of motion; this energy depends on its speed and mass
acceleration
the rate at which velocity changes; an object accelerates if its speed changes; if its direction changes or if both its speed and direction changes
centripital force
...the force, acting upon a body moving along a curved path, that is directed toward the center of curvature of the path and constrains the body to the path.