Physics Flashcards
(23 cards)
What are the two frames of reference
Cartesian and cardinal
What is motion
A change in position relative to something else
What is frame of reference
A system of coordinates that has a fixed origin
What is displacement
Distance in a given direction
What is a scalar
A quantity that has magnitude but no direction
What is a vector
A quantity that has both magnitude and direction
What are some examples of scalars quantities
Speed,mass,volume, distance area
What are some examples of vector quantities
Velocity, displacement, acceleration, momentum, pressure
What is delta
A greek letter that stands as change in
What is resultant vector
The sun of two or more vectors
What is velocity
Speed in a particular direction
What is average velocity
Displacement of the object divided by the time interval
What equals The slope of the line (rise divided by run)
Average velocity
Whats the formula of average velocity
Displacement final—displacement initial
———————————————
Time final—time initial
What is instantaneous velocity
Momentary velocity at one point in time
A curved line graph shows what
Instantaneous velocity
A straight line graph shows what
Average velocity
Is this average or instantaneous/ how fast must you bike to get there in half an hour
Average
Is this average or instantaneous/what is the fastest she can run?
Instantaneous
Is this average or instantaneous/how fast did he run the first 5 miles if the marathon
Average
Is this average or instantaneous/what is the minimum speed of takeoff
Instantaneous
What is one-dimensional motion?
Motion along a straight line
What is acceleration
Change in velocity over time
