List of Labs, mini-Labs and Lecture Demos (Fall 2003)
| Activity |
Topic |
Intuition
developed |
Misconceptions
addressed |
Relationships
developed |
| Lab
1 |
Position
graphs |
Understanding
graphs, motion detector |
|
|
| Lab
2 |
Velocity
graphs |
Nature
of velocity |
velocity
graph looks like motion graph, velocity always positive |
v
= dx/dt |
| Lab
3 |
Acceleration
graphs |
Nature
of acceleration |
acceleration
and velocity sort of the same thing |
a
= dv/dt |
| Video
analysis |
2-d
motion |
Motion
in X and Y independent |
Vertical
& horizontal motion influence each other |
|
| Mini-lab
1 |
Force
overview |
Measuring
forces, combining forces |
|
|
| Lab
4 |
Force
and motion |
Relationship
of force to motion |
Force
proportional to velocity |
F=ma |
| ILD
1 |
Combining
forces |
Add
forces vectorally |
Can
add magnitudes |
Fnet
= F1 + F2 + … |
| ILD
2 |
Action-reaction |
Nature
of action-reaction pairs |
Object
pulling other object exerts more force |
F12
= - F21 |
| Lab
5 |
Gravity |
Nature
of gravity |
Heavier
objects fall faster |
F
= mg |
| Lab
6 |
Contact
forces |
Normal
and tension forces |
Inanimate
objects can exert a force, normal force always up |
F(N)
perp. Surface, F(T) along rope |
| Lab
7 |
Friction |
Nature
of friction |
Friction
depends on contact area, speed |
F(f)
= mF(N) |
| Mini-lab
2 |
Impulse |
Impulse
and force |
Sticking
object delivers more force than bouncing object |
impulse
= Fdt |
| Lab
8 |
Impulse |
Impulse
and momentum |
|
Fdt
= dp |
| ILD
3 |
Conservation
of momentum |
Conservation
of momentum |
Total
momentum affected by nature of objects in collision |
total
momentum before = total momentum after |
| Mini-lab
2/ ILD 4 |
Work |
Nature
of work |
|
W
= Fdcos(theta) |
| Lab
9 |
Work
and kinetic energy |
Kinetic
energy |
work
proportional to speed |
KE
= 1/2 mv2 |
| ILD
5 |
Conservation
of energy |
Conservation
of energy |
Mechanical
energy lost |
total
energy before = total energy after |
| ILD
6 |
Springs |
Spring
force and spring potential energy |
|
F=-kx,
SPE = 1/2 kx2 |
| Lab
10 |
Rolling |
Moment
of Inertia |
Speed
of rolling object does not depend on radius or mass |
|
| Lab
11 |
Torque |
Nature
of Torque |
Only
the amount of force matters |
sum
of rFsin(theta) = 0 to balance, results in angular acceleration if not |
| ILD
7 |
Stress
and strain |
Elastic
nature of wire |
Solid
objects don't change length |
dL/L
prop to F/A, breaking point |
| (Lab
12) |
Buoyancy |
Archimedes'
principle |
no
buoyant force on solid objects |
Fb
= rgV |
|
|
|
|
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