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Motion and Force
7th grade Holt science
Question | Answer |
---|---|
Distance divided by time | Speed |
Speed and direction of an object | Velocity |
An object that appears to stay in place | Reference Point |
Combination of all forces on an object | Net force |
A push or pull | Force |
Kinetic | moving |
Static | not moving |
when the net force on an object is not 0 N, causes motion | unbalanced force |
a force that opposes motion between 2 surfaces | friction |
a decrease in velocity | deceleration |
when the forces on an object produce a net force of 0 N, doesn't cause motion | balanced force |
an objects change in position relative to a reference point | motion |
rate at which velocity changes | acceleration |
the unit for measuring force | Newton |