Kinemtics Flashcards
(19 cards)
What is distance (d) and it’s equation?
Total distance travelled in any direction (has no direction)
Total distance= d1+d2…
What is position (d^—>)?
Distance and direction travelled
What is displacement and its equation?
Distance and direction travelled from where you started
Displacement= d2—>d1–>
Scalar quantity
A quantity that has no direction
Vector Quantity
Quantity with both magnitude and direction
Examples of a scalar quantity?
Distance;
Speed
Examples of vector quantities
Position; Displacement; Velocity; Acceleration; FKE formulas
Instantaneous Speed?
Speed of an object at a particular instant in time
Constant speed?
Instantaneous speed for a period of time
Average Speed?
Total distance travelled divided by total time in elapsed; average speed travelled
Vave= d/^t
What is speed?
Measure of change of distance overtime
Velocity?
Measure of change in position over time; with a direction
Constant Velocity?
Travelling at a constant speed in 1 direction
Average Velocity?
Vector quantity; displacement overtime
Vave—>= ^d—>/^t
How can you determine average velocity on a time graph between two points?
Draw a straight line connecting both points and calculate its slope
Positive slope on linear time graph means object is coming towards starting. True or False?
False. Moving seats from starting point is positive
What is acceleration?
Rate of change in velocity
FKE are vector quantities. True or false?
True, no arrows needed.
Most answers are required in what units?
m;
s;
m/s;
m/s2
