Science Starter!
1. Obtain worksheet from teacher’s lab table.
2. Complete questions 1-3 on front of worksheet with
your 6 O’CLOCK PARTNER.
3. Attempt (use pencil!) questions 4-7 on back of
worksheet.
Key Ideas to Remember
On a “Position vs. Time” graph:
∙ Linear Line: Constant Velocity
- Positive Slope: Moving in (+) Direction (forward)
- Negative Slope: Moving in (-) Direction (backward)
- Zero Slope: Not Moving (stopped)
* Speed: Distance / Time
* Velocity: Displacement / Time
- Average Velocity: Slope between any two points
- Must include either (+) or (-)
∙ Curved Line: Acceleration
Velocity vs. Time Graphs
Describe the
motion of the
object for each
interval:
a) 0s – 4 s
b) 4s – 8s
c) 8s – 12s
Acceleration
Calculate the
acceleration
from:
a) 0s – 4 s
b) 4s – 8s
c) 8s – 12s
d) 0s – 12s
Calculate the
acceleration
from:
a) 0s – 4 s
b) 4s – 8s
c) 8s – 12s
d) 0s – 12s
Enclosed Area
Shade in shape and
find area to find
displacement.
Rectangle = BH
Triangle = ½ BH
On a “Velocity vs. Time” graph:
∙ Linear Line: Constant Acceleration
- Positive Slope: positive acceleration
- Negative Slope: negative acceleration
- Zero Slope: constant velocity
- Average Acceleration: Slope between any
two points
- Must include either (+) or (-)
∙ Area Between Line and Horizontal Axis
- Displacement
- Must include either (+) or (-)
Kinematics Equations
(1)
(2)
(3)
Solving Problems (5 points)
1 point  LIST all given variables (with units) and
IDENTIFY the unknown (?)
1 point  Select and write the appropriate the
EQUATION(S)
1 point SUBSTITUTE the given variables into the
equation
1 point  Show the MATHEMATICAL STEPS
1 point  Arrive at the correct ANSWER with
correct UNITS
14 hours
What is “14” a measurement of?
(a) distance
(b) speed
(c) time
(d) temperature
KNOW UNITS!
“x” (position): m
“v” (velocity or speed) : m/s
“a” (acceleration): m/s2
“t” (time): s
Text Examples
# 80
(1) vo = 32 m/s
v = 96 m/s
t = 8.0 s
a=?
(3) 96 = 32 + a(8)
(4) 96 – 32 = a(8)
64 = a(8)
64 / 8 = a
(2) v = vo + at
(5) a = 8 m/s2
# 81
(1) vo = 22 m/s
t = 6.8 s
a = 1.6 m/s2
v=?
(3) v = 22 + (1.6)(6.8)
(4) v = 22 + (10.88)
(5) v = 32.88 m/s
(2) v = vo + at
# 88
(1) xo = 0 m
x = 325 m
vo = 0 m/s
a = 49 m/s2
v=?
(2) v2 = vo2 + 2a (x – xo)
(3) v2 = (0)2 + 2(49)(325)
(4) v2 = 31850
(5) v = 178 m/s