CAPT Lab

Unsatisfactory Problem Statement

• How does the angle affect or the height affect the ground level that the skateboarder can go or whether when it is moved higher, will they go higher?

Marginal Problem Statement

• The purpose of experiment 1 is to see how the elevation affects how far a skateboarder will travel up a ramp. The independent variable is the angle of the elevation ramp. The dependent variable is how far the skateboarder goes.

Excellent Problem Statement

• Experiment 1 – This experiment was to determine how the angle of the elevation ramp affects the height above ground a skateboarder can reach. The independent variable is the angle of the elevation ramp and the dependent variable is the height above ground level reached by the skateboarder.

Excellent Problem Statement

• The purpose of experiment 2 was to determine if the mass of the skateboarder affects the height the skateboarder reaches on the elevation ramp. The independent variable is the mass of the skateboarder. The dependent variable is the height above ground reached by the skateboarder on the elevation ramp.

Unsatisfactory Procedure

• First were going to get the material ssuch as the list above and also fill up the bottle with 42.85 ml of water. Second were going to use wooden blocks to build up the ramp. Third we are also going to take a ruler to measure the ramp to make sure it is set up right with each of the cardboard ramps. Fourth we would then put the cup up on the ramp at an angle.

Unsatisfactory Procedure Continued

• Fifth we would place the bottle at the starting ramp and let it roll down the ramp and see how much the bottle elevated. Next repeat process at different angles to see how the data changes.

Marginal Procedure

1. Tape cardboard ramp to table.

2. Place blocks under both sides of the ramp for support and adjust to reach the elevation measure you want. (5 degrees)

3. Measure the elevation and record.

4. Place a plastic cup at the beginning of the elevation ramp.

Marginal Procedure Continued

5. Roll empty bottle down starting ramp, it will move the other cup at the opposite end. Count the number of blocks it elevated.

6. Do this three times but adjust the elevation each time.

Proficient Procedure

1. Gather Materials.

2. Fill the plastic bottle with water and weigh the mass of it. Record the mass.

3. Use the wood blocks to make a starting ramp and an elevation ramp by placing the blocks at different angles and putting a piece of cardboard on top.

Proficient Procedure - Continued

4. Place plastic cup at the bottom of the elevation ramp. Place the plastic bottle at the top of the starting ramp to hit the cup. The water bottle will push the cup up the elevation ramp and where it stops is the height above ground the skateboarder reaches.

5. Move the blocks to create angles of the elevation ramp using the protractor. Start at 10 degrees and raise it at intervals of 10 degrees until 50 degrees is reached. (10,20,30,40,50)

6. Run the test and record the results.

Excellent - Procedure

1. Set up apparatus as shown.

2. Fill the plastic bottle with 35 ml of water and cap.

3. Measure the angle of the elevation ramp with the protractor provided. It should be 8 degrees. Measure the start ramp, it should be 15 degrees.

Excellent - Procedure

4. Position the plastic bottle at the top of the start ramp and let it roll down the starting ramp so that it pushes the plastic cup up the elevation ramp. Record the height and repeat the experiment 2 more times. Calculate the average distance the cup traveled and record.

Excellent - Procedure5. Remove 10 ml of water from the plastic

bottle leaving 25 ml of water. 6. Repeat step 4.7. Remove 10 ml of water from the plastic

cup leaving 15 ml.8. Repeat step 4.9. Remove 10 ml of water from the plastic

cup leaving 5 ml.10. Repeat step 4.

Unsatisfactory - Conclusion

• The results change each time you move the starting ramp or the elevation ramp just really changes the measurements of how far the cup moves. The bottle represented the skater.

Marginal Conclusion

• My results for experiment 1 show that the higher the elevation the less height the skateboarder goes up the ramp. For 5 degrees the skateboarder went up 24 blocks. For 20 degrees it was 23 blocks and for 30 degrees it was 13 blocks. I am confident in this experiment because we did it with 3 different angles and recorded the data.

Proficient Conclusion

• The angle of the elevation ramp does not affect how high above the ground the skateboarder will go. The height above ground remains pretty much the same. When the angle was 10 degrees the skateboarder went 4 cm. When it was 20 degrees it was 4 cm, 30 degrees it was 4 cm, and 40 degrees it was 4 cm. At 50 degrees the angle was too steep to get accurate results.

Excellent ConclusionThe angle of the elevation ramp does not change

the height above ground to any great extent. At the lower angle, 5 degrees, the cup traveled to 3 cm above ground. At the highest angle, it traveled to 3.6 cm. My validity is reasonably high. Each angle had 3 trials and the average was taken. Every attempt was made to position the equipment correctly. The plastic cup did slide backward making an exact measurement very difficult. We could improve the experiment by checking additional angles of the elevation ramp.