Example+procedure+and+data+table

**These are some examples to look at to help you get started. I am not saying that any of these are good or bad, just examples of student work from the past.**
=__**EXAMPLE 1**__= Procedure: 1. start the experiment- using one washer at 90 degree pullback, time number of seconds it takes for 10 swings 2. stop timer at peak of the tenth swing 3. decrease string length by 10 cm; repeat 4. decrease string length by 10 cm; repeat 5. record data in table

1st Test Average-17 2nd Test Average-15.7 3rd Test Average-14.5
 * 1st Test || 17 sec. || 15.6 sec. || 14.7 sec. ||
 * 2nd Test || 17.1 sec. || 15.7 sec. || 14.5 sec. ||
 * 3rd Test || 17 sec. || 15.9 sec. || 14.4 sec. ||
 * || 60 cm || 50 cm || 40 cm ||

=__**EXAMPLE 2**__= __ **Length Trial** __ : This procedure's manipulated variable is the length of the string.

1) Use a big washer (42g) for each of these trials.

2) First, test this experiment with a 30 centimeter long string, from the end of the loop in the washer to the end of the string.

3) Drop washer at 90 degrees and time how many swings in 20 seconds two times for accurate results.

4) For the second trial, use a 50 centimeter long string.

5) Use a 70 centimeter long string for the last trial.

__ **LENGTH TRIAL** __

= = =**__EXAMPLE 3__**= Procedure:
 * trial #2 || 30 centimeters || 50 centimeters || 70 centimeters ||
 * 1 || 17 swings || 13 swings || 11 swings ||
 * 2 || 17 swings || 13 swings || 11 swings ||
 * 3 || 17 swings || 13 swings || 11 swings ||
 * average || 17 || 17 || 17 ||

1.) Weigh mass number one...

2.) Measure the string at 50 cm...

3.) Hang it on a stable surface...

4.) Drop it at a 90 degree angle (do not throw it or thrust it forward)...

5.) Time how many seconds it takes for it to do twenty swings...

6.) Read step 7!!

7.) Repeat step 4 and 5, four times...

8.) Add on however many cm. and repeat steps 3,4,5...


 * length of string || weight of mass || degrees that it is dropped || trail 1 || trail 2 || trail 3 || trail 4 || Averages ||
 * 4 cm || 48.5 g || 90 degrees || 11.710 sec. || 11.659 sec. || 11.781 sec. || 11.642 sec. || 11.698 sec. ||
 * 10 cm || 48.5 g || 90 degrees || 15.612 sec. || 15.968 sec. || 15.739 sec. || 15.426 sec. || 15.68625 sec. ||
 * 20 cm || 48.5 g || 90 degrees || 21.304 sec. || 21.264 sec. || 21.391 sec. || 21.400 sec. || 31.98175 sec. ||
 * 30 cm || 48.5 g || 90 degrees || 25.486 sec. || 25.101 sec. || 25.394 sec. || 25.592 sec. || 27.7585 sec. ||
 * 40 cm || 48.5 g || 90 degrees || 28.339 sec. || 28.436 sec. || 28.685 sec. || 28.427 sec. || 28.47175 sec. ||
 * 50 cm || 48.5 g || 90 degrees || 32.632 sec. || 31.602 sec. || 32.438 sec. || 32.351 sec. || 32.25575 sec. ||

=__**EXAMPLE 4**__=

1st test: does string length matter?

1st test Manipulating variable- string length responding variable- number of swings in 20 seconds control- weight(1-43.25/ 2-86.5), angle of pull back, time Conclusion: We have concluded that that the shorter the length of the string means that the greater number of swings. The average for the shorter string was 14 swings in twenty seconds. The other two were on average of 10.83 which is a lot less. Procedure: 1.) Weigh weights 2.) Length of string (mark by using markers) 3.) Hang the string on the door 4.)Make sure we are timing with timer for 20 seconds with phone 5.) Pull string taut at 90 degrees 6.) Drop weight dont push

Swings in 20 seconds
 * 80 cm || trial 1: 10 swings || trial 2:10 swings || trial 3:10 swings ||
 * 60 cm || trial 1: 12 swings || trial 2:12 swings || trial 3:11 swings ||
 * 40 cm || trial 1: 14 swings || rial 2: 14 swings || trial 3:14 swings ||
 * Length || Trial 1 || Trial 2 || Trial 3 ||