# Position Velocity Acceleration Flashcards

position-time, velocity-time, acceleration-time

What are the three types of graphs in Kinematics?

velocity

What does the SLOPE represent on a POSITION-TIME graph?

acceleration

What does the SLOPE represent on a VELOCITY-TIME graph?

nothing important

What does the SLOPE represent on an ACCELERATION-TIME graph?

change in velocity

What does the AREA under an ACCELERATION-TIME graph represent?

change in position (also called displacement)

What does the AREA under a VELOCITY-TIME graph represent?

nothing important

What does the AREA under a POSITION-TIME graph represent?

Nice

Here is a chart to summarize them. VERY IMPORTANT,

the origin or reference point

Position-Time Graph: x-axis represents _________.

at rest

Position-Time Graph: horizontal line away from x-axis represents__________.

constant velocity or uniform motion (zero acceleration)

Position-Time Graph: straight line with non zero slope represents__________.

acceleration or change in velocity

Position-Time Graph: curved line represents__________.

at rest since velocity is zero

Velocity-Time Graph: x-axis represents _________.

no acceleration (usually constant velocity)

Velocity-Time Graph: horizontal line away from x-axis represents__________.

acceleration

Velocity-Time Graph: straight line with non zero slope represents__________.

no acceleration (could be either constant velocity or at rest)

Acceleration-Time Graph: x-axis represents _________.

uniform acceleration

Acceleration-Time Graph horizontal line away from x-axis represents__________.

C and EF

Position-Time Graph: Where is the object at the origin?,

AB, EF

Position-Time Graph: Where is the object at rest?,

BC, DE, HI

Position-Time Graph: Where is the object heading towards the origin?

BD and FH

Position-Time Graph: Where is the object moving at a positive velocity?

FG (+) GI (-) Both sections are curved so the object is accelerating
in both. The u-shaped (partial u) piece is positive acceleration while
the *n*-shaped piece is *n*egative acceleration

Position-Time Graph: Where is the object accelerating and is it
positive or negative?

BD, ED and at the point G which is the point where the u meets the n,
so it is neither a u or and n.

Position-Time Graph: Where is the object not accelerating?,

AB (for a long time) E (for a split second)

Velocity-Time Graph: Where is the object at rest?,

The object is turning around.

Velocity-Time Graph: What happens at Point E.,

No (the negative displacement is bigger than the positive
displacement-look at the areas for displacement)

Velocity-Time Graph: If the object starts at the origin, will it make
it back?,

BC (-), DF(+)

Velocity-Time Graph: When is the object accelerating, and is it
negative or positive?

There is no way to tell. (Zero acceleration could either mean at rest
or constant velocity.)

Acceleration-Time Graph: Where is the object at rest?,

CD

Acceleration-Time Graph: Where is the object undergoing no acceleration?,

AB (-), BC (+)

Acceleration-Time Graph: Where is the object undergoing acceleration
and is it positive or negative?

Does that make sense??

This chart is basically everything summed up.,

velocity and acceleration (If they are the same sign, speeding up)
(If they are opposite signs, slowing down)

What 2 pieces of info do you need to tell if an object is speeding up
or slowing down?

Find the slope! (Don't forget rise over run to calculate actual
number and check the scale)

How do you find the velocity on a x-t graph?

BC and EF

Which intervals is the speed increasing?

Yes. There is a change in direction (so velocity changes).

When you throw a ball up in the air it stops briefly at the top (*at
rest*) but even then it is *accelerating* at 9.8 m/s/s down. If an
object is at rest, can it be accelerating? Why?

-4 m/s as the magnitude is greater and direction does not matter.

Is a velocity of -4 m/s or +1 m/s considered "greater?