 | Term | Definition |
| |
a force acting on an object can cause |
it to accelarate |
| |
Newton's first law of motion |
an object will remain at rest or keep moving unless a force acts on it |
| |
Inertia |
measures an object's tendency to resist changing its motion. |
| |
balanced forces |
Forces that cancel each other are called |
| |
net force |
is the combination of all the forces acting on an object |
| |
Acceleration |
is the change in velocity divided by the time needed for the change to occur |
| |
position |
Motion occurs when an object changes its |
| |
position |
The distance between an object and a reference point is the object's |
| |
calculation for speed |
v = d/t |
| |
Average speed is found by |
dividing total distance traveled by the total time |
| |
speedometer |
indicates instantaneous speed |
| |
positive |
speeds up in same direction, faster |
| |
motion |
change in position, to determine if motion has taken place you need a fixed refrence point |
| |
speed |
" rate of motion " |
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rate |
means change over time |
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not speed |
if the axis aren't m/s it is |
| |
except when a straight line |
distance and displacement are never the same |
| |
" decelaration " |
decrease in speed |
| |
velocity will change |
if either changes ( speed or direction ) then |
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