To get reminders
from me…
Answers to the Chapter 1 assignment
are on my website under AP Physics
Diary
Fill in the
table below:
Position (yd)
0
10
20
30
40
50
Time (s)
Fill in the
table below:
Position (yd)
Time (s)
0
0
10
6.35
20
12.34
30
18.61
40
24.81
50
30.05
p-t graphs
• If you calculate the slope
(ΔX/Δt) you get the
average velocity.
• If the slope is constant,
the velocity is constant.
• For an increasing or
decreasing slope, you can
calculate the slope of the
line tangent to the curve
to get the instantaneous
velocity.
v-t graphs
• If you calculate the slope
(Δv/Δt) you get the average
acceleration.
• If the slope is constant, the
acceleration is constant.
• For an increasing or
decreasing slope, you can
calculate the slope of the line
tangent to the curve to get
the instantaneous
acceleration.
• If you calculate the area
under the line (Δv x Δt) you
get the displacement (ΔX)
Copy these table onto page ___.
Copy these tables onto page ___.
Graph trials A-D together:
Trial A: Student walks at a constant velocity from the
0 yard to the 50 yard line.
Trial B: Student walks at a constant velocity but faster
than trial one from the 0 yard to the 50 yard line.
Trial C: Student jogs at a constant velocity from the 0
yard to the 50 yard line.
Trial D: Student starts at 50 yard line and walks at a
constant velocity toward the 0 yard line.
Graph trials E-F together:
Trial E: Student starts out walking for 20 yards, then
quickens the pace to a jog for 20 yards, and then to a
full out run for 20 yards.
Trial F: Student runs for 20 yards, then slows to a jog
for 20 yards, and then walks for 20 yards.
Table for each trial should have position and time recorded
for EVERY 10 YARDS.
For trials A-D (Time should be on the X-axis!!!):
• Graph trials A-D on a position-time graph.
• Calculate the slope for trials A thru D from the p-t graph.
• Graph velocity vs time for trials A-D on a velocity-time
graph. Again, time should be on the X-axis.
• Calculate the slope for trials A-D from the v-t graph.
• Graph acceleration vs time for trials A thru D on an
acceleration-time graph.
For trials E-F(Time should be on the X-axis!!!):
• Graph trials E-F on a position-time graph.
• Calculate the slope of each line segment to get a picture of
what the velocities were for each trial.
• Graph the velocities on a velocity-time graph
• If the velocities were to increase at a constant rate, what
would the acceleration-time graph look like?