midterm-GradingTemplate-102522a

Part 1 /50
Part 2 /50
Total  %

1. Fill in the Blanks /10
2. Short answers /10
3. Foot-to-meter program /15
4. Square, Square root /15


1. Fill in the Blanks /10
- Good
A. Lever
B. Bevel
C. Bell crank
d. tensioners
e. ratchets
f. second
g. reciprocation
h. straight-line
i. idler or jockey wheel
j. belt slip

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2. Short answers /10

A. Worm Gears 
- Good
- Missing sketch: -1
- Missing some bullets: -1
* Worm gear: shaft has a screw thread
* Screw thread meshes with the toothed wheel
* Gives a very slow but powerful force to the toothed wheel

B. Simple machines
- Good
- Missing  one or more sketches: -1
- Missing one or more simple machines: -1
* Inclined Plane (or slope)
* Wedge
* Screw
* Lever
* Wheel

C. Levers of 2nd order
- Good
- Missing sketch: -1
- Missing one or more bullet points: -1
* 2nd order lever: load between fulcrum effort e.g. wheel barrel
* Known as a force multiplier

D. 3-bar
- Good
- Missing sketch: -1
- Should show where straight-line motion is

E. Springs
- Good
- Missing one or more sketches: -1
* Compression
* Extension
* Radial
* Torsion

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3. Foot-to-meter program /15

- Good 
- Comments missing, especially in beginning of program: -2
- White space, especially in-between French braces: -2
- Variable declarations e.g. using byte or int instead of float: -5
- Syntax mistakes e.g. missing semi-colons, %.2f for 2-digits display -2
- Logic error e.g. doesn't loop from 1 to 10 
- Logic error e.g. doesn't display results for 2 sec correctly: -5

4. Square, Square root /15

- Good
- Comments missing, especially in beginning of program: -2
- White space, especially in-between French braces: -2
- Variable declarations e.g. using byte or int instead of float: -5
- Syntax mistakes e.g. missing semi-colons, %.2f for 2-digits display -2
- Logic error e.g. doesn't loop from 1 to 10 
- Logic error e.g. doesn't display results for 2 sec correctly: -5