1. William, Suli, Sofia, and Mason
What is the effect of the angle of the launcher on the distance the cap travels?
LAB REPORT
William, Suli, Sofia, and Mason
WILL READS

2. Question
What is the effect of the angle of the launcher on the distance the cap travels?
SOFIA READS

3. Hypothesis
Our hypothesis is if the angle of the launcher is higher the cap will travel shorter. We think this because if the cap goes up in the air it will just drop.
SOFIA READS

4. Controlled Variables The amount of Alka-seltzer (1 tablet)
The amount of seltzer water (20 ML)
The weight of the cap
The place that the launcher is launched
The wind of the area
The size of the room
The temperature of the water
SULI READS

5. Manipulated Variable/Independent Variable
The angle of the launcher
SULI READS

6. Responding/Dependent Variable
The distance the cap travels
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7. Materials Alka-seltzer tablets Seltzer water (20 ML) Launcher
Tape measure
Fill canister plus cap
Post-its or tape to mark spots and a pen to label
Protractor
WILL READS

8. Procedure First you make sure you are in a big room with the lights.
Also you have to get all the materials: an alka-seltzer tablet, seltzer water (20 ML each time), a measuring tape, a protractor, a film canister plus cap, a launcher, paper towels, and post-its or tape to mark the spots the cap lands.
Next, you take the film canister and fill it with seltzer water (20 ML).
Then, you put the film canister in the launcher and screw it to the launcher.
You also get the alka-seltzer tablet and quickly put the cap on.
Next you get back and wait for the launch.
After the cap launches, you tape the spot it lands at (not the spot it rolls or bounces to) then you get a measuring tape and measure the distance that the cap travels
You then record your data to save your progress and screw the nail out to release the film canister to empty it. Repeat 2 more times while the angle is on 20 degrees.
Then, you switch the angle of the launcher to 30 degrees to launch again
Next you repeat steps 3-6 at least 3 times for each angle you switch it to until your whole data table is filled up with information. You will also switch the angle of the launcher. (45 degrees)
Then redo the steps.
MASON READS

9. Data Table: The distance the cap travels in cm
Manipulated Variable
Trial 1
Trial 2
Trial 3
Average/Mean
The angle of the launcher
20 degrees
268
341
450
353
30 degrees
478
397
455
443
45 degrees
543
545
555
547
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10. Graph
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11. Conclusion/Results
Our result was that the cap will travel farther if the angle was higher, that means that our hypothesis was false.
MASON READS

12. Other Questions Why did the cap take too long to launch?
Why did the cap shoot farther when the degree of the launcher was higher?
SULI READS

13. http://nces.ed.gov/nceskids/createagraph/ William Cavalier Mason Crane
Suli Lu
Sofia Schwend
SOFIA READS