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Sasser S8P3b
Physical Science
Term | Definition |
---|---|
inertia | the tendency of an object to resit a change in its motion |
mass | a measure of the gravitational force exerted pm an object; its value can change with the location of the object in the universe |
gravity | is the force of attraction between objects that is due to their masses |
friction | a force that opposes motion between two surfaces that are in contact |
distance | the extent or amount of space between two things, points, lines, etc .. |
balanced force | forces acting on an object that combine and form a net force of zero |
unbalanced force | force acting on an object that combine and form a net force that is not zero |
gravitational force | is a force that attracts any object with mass. |
Newton's first law of motion | the law that states that if the net force on an object is zero, the motion of the object does not change |
net force | the combination of all the forces acting on an object |
velocity | the speed of an object in a particular direction |
acceleration | the rate at which velocity changes over time; an object accelerated if its speed, direction, or both change |