Catapult report
Richard Geng
SPH4U
A catapult could launch a object through to make a projectile motion. Make the
object went through a parabola in the air. In this catapult project we make a catapult
and launch a marshmallow to the target of the floor. U
Adeel Subhani
SPH3U-05
Mr. Wong
May 15, 2015
The Force of Friction on a Car
PURPOSE:
To verify if the gravitational potential energy at a certain
height is equal to the kinetic energy at the base
HYPOTHESIS:
The total potential gravitational potential ene
6 m/s
tan 56
4 m/s
Chapter 3
14. given: v 1 4 m/s [E]
v 2 6 m/s [E]
a) Maximum velocity occurs when v2 6 m/s
[E]; v total 10 m/s [E].
v total 7.2 m/s
v total 7.2 m/s [E56S]
Minimum velocity occurs when v 2 6 m/s
[W]; v total 2 m/s [W].
(i)
v
total
v
1 4
Lab Reports
There are five assessment criteria which are used to assess your lab reports.
$
$
$
$
$
planning (a)
planning (b)
data collection
data analysis
conclusion and evaluation
Pl (a)
Pl (b)
DC
DA
Ev
Planning (a)
ASPECTS
Levels
Defining the prob
Friday, October 18, 2013
8:38 AM
unit 1 Page 1
unit 1 Page 2
unit 1 Page 3
unit 1 Page 4
unit 1 Page 5
unit 1 Page 6
unit 1 Page 7
unit 1 Page 8
unit 1 Page 9
e) total displacement,
Chapter 2
14. a) A: speeding up eastbound; B: constant
speed of 25 m/s eastbound; C: slowing
down eastbound; D: speeding up westbound; E: constant speed of 75 m/s
westbound; F: speeding up westbound
b) instantaneous speed, v:
at 60
Graphical Analysis
To determine if the motion of an object is uniform
or non-uniform we plot a displacement-time graph
for the motion.
)d (m[E])
0
12
24
36
48
60
t (s)
0
1.3
2.6
3.9
5.2
6.5
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
To determine the significance
Analysis of Velocity-Time Graphs
A displacement-time graph for an object which undergoes uniform motion has the following appearance.
The velocity for this objects motion is found by taking the slope of the line. Plot the corresponding
velocity-time graph
PART 3 Solutions to End-of-chapter Problems
100 cm
1 in
1 ft
b) 553 m
1m
2.54 cm
12 in
1810 ft
Chapter 1
60 s
15. a) 20 min 1200 s
1 min
60 min
1 km
60 s
19. a) 14.7 m/s
1h
1000 m
1 min
52.9 km/h
60 min
b) 6.5 h 390 min
1h
24 h
c) 0.6 day 14.4 h
1 day