AP Physics 1 Unit 1 Kinematics: Review

exactly what the title says stoopid

What does a straight horizontal line on a velocity vs. time graph signify?

A constant velocity (velocity stays the same number)

What are position time graphs used for?

To find the displacement and slope of an object over time.

What does a diagonal straight slope mean on a position time graph?

That there is constant velocity

What does a slightly curved slope mean on a position time graph?

Contsant acceleration

What does a deeper curved slope mean on a position time graph?

Increasing Acceleration

What does the area under the curve on a position time graph mean?

nothing.

What does a negative slope on a position vs time graph mean?

Motion in the negative direction

What does a positive slope on a position time graph mean?

Motion in the positive direction

What is slope equal to on a velocity vs time graph?

Acceleration

what does a diagonal straight slope mean on a velocity vs time graph?

Constant Acceleration

What does a slight curve on a velocity vs time graph mean?

Increasing Acceleration

What is the area under the curve equal to on a velocity vs time graph?

The displacement

What does a positive slope represent on a velocity vs. time graph?

Positive Acceleration

What does a negative slope represent on a velocity vs. time graph?

Negative Acceleration

What does the slope mean on an acceleration vs. time graph?

nothing.

What does a straight line on y = 0 mean when it comes to an acceleration vs. time graph?

Constant velocity

What does a straight horizontal line not on 0 mean when it comes to an acceleration vs time graph?

Constant Acceleration

What does a straight diagonal line mean on an acceleration vs. time graph?

Increasing acceleration

How do you calculate slope on a motion graph?

Rise/run or change in x/ change in y

velocity formula

velocity = displacement/time

change in x/change in t = velocity

time formula

time = distance/speed

change in _ formula

Δt = tf - t0

Δx = xf - x0

Final Velocity Equation:

Vx = Vxo + at

Average Speed Equation

average speed = total distance / total time

Average Velocity Equation

Vavg = Δx/Δt

Vavg = (Vi+Vf)/2 for constant acceleration

Acceleration formula

a=vf-vi/t

What is velocity?

the speed of an object in a certain direction

What is acceleration

how fast velocity increases or decreases

You know time and acceleration, but want velocity. Which formula should you use?

What does x mean on formula?

x means position or final position

What does x0 mean on formula sheet?

The initial position

When should you use v = v0 + at

when you are not given position or displacement

What is the formula you should use when you want displacement or position and you know time?

x = x0 + vx0t+1/2 (a)(t)^2

Reads: final position = initial position + (how far you go if you kept your initial speed) + (extra distance because you're accelerating).

What is upward velocity and downwards acceleration?

Antiparallel

How do you find instantaneous velocity on a position time graph?

Its the slope of the line on the position time graph

slope of position time graph:

velocity

slope of velocity time graph?

acceleration

area under velocity time graph?

displacement