Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
Velocity |
SPEED OF AN OBJECT AND THE DIRECTION OF ITS MOTION |
|
REFERENCE POINT |
MOTION OCCURS WHEN AN OBJECT CHANGES IT POSITION RELATIVE TO A REFERENCE POINT |
|
DISPLACEMENT |
INCLUDES DISTANCE OF AN OBJECT BUT ALSO DIRECTION |
|
Negative Acceleration |
slowing down |
|
Positive Acceleration |
Speeding up |
|
Speed |
Distance an object travels |
|
Velocity^ |
Distance an object is going plus direction ; cannot be a constant on a circular track |
|
Y Axis |
Distance |
|
X Axis |
Time |
|
Inertia |
tendency of an object to resist change in motion |
|
Acceleration |
Rate of change of velocity of an object |
|
Net Force |
2 or more forces combined that are acting on an object |
|
Instantaneous speed |
the speed at a given point in time |
|
SPEED GRAPH |
|
|
Friction |
force that opposes the sliding motion of 2 surfaces that are touching each other |
|
Terminal Velocity |
force of air resistance pushing up on an object is equal to the force of gravity pulling down on the object |
|
momentum |
how much force is needed to change motion of an object |
|
Microwelds |
little forces called that causes friction |
|
2 important things when discussing air resistance |
Mass & Force |
|
ACCELERATION GRAPH |
|
|
gravity depends on 2 things |
masses of 2 objects & distances b/w them |
|
Centripetal Acceleration |
Acceleration toward the center of a curved or circular path |
|
Difference between weight & mass |
Weight is a force Mass is a measure of the amount of matter an object contains |
|
Newtons 1st law |
object at rest until a force acts on it |
|
Newton's 2nd law |
acceleration of an object is directly related to its mass & the force applied |
|
Newtons 3rd law |
every action force ,there is an equal and opposite reaction force |
|
Rolling Friction |
between a rolling object and the surface it is rolling on |
|
Sliding Friction |
the friction of a sliding object |
|
Static Friction |
force you must overcome to move |