10/6 Rubber Band Lab
Introduction: The purpose of the introduction is to define important words and explain important concepts that helped to build the hypothesis. Presents the question and presents the hypothesis.
Example:
Energy is never created or destroyed it just changes forms. Energy is the ability to do work. Work is moving an object a distance in the direction of force.
There are 2 main types of energy. Kinetic energy and Potential Energy. Kinetic energy is moving energy and potential energy is stored energy.
There are 2 types of potential energy: gravitational potential and elastic potential.
Items that have elastic potential are things like elastic bands, balloons even skin. All of these items have elastic potential because they can be stretched out and then return to their original position.
But stretching things out requires energy. When a stretched out rubber band is released the elastic potential energy is changed into kinetic energy.
The question for this research is if a rubber band is stretched out more will it travel farther when it returns to its original position? The hypothesis for this experiment is if a rubber band is stretched out more, it will travel farther when it is released because of the relationship between elastic potential energy and kineticenergy.
A hypothesis is a prediction based on facts.
Hypothesis follow this form:
If I do something
ThenSomething will happen
Because Of something I know
The Independent variable: The distance the rubber band is stretched. (independent variable is the tested variable, it’s the variable that changes in the test).
The Dependent Variable: The distance the rubber band travels when it is released. ( dependent variable is the observed variable, it’s the results you are looking for)
Constants: How the rubber band is shot, same rubber band, wind or obstacles, shooting straight, how the lengths are measured, height, temperature
Materials and Methods- A description of exactly how you did your experiment goes here.
The independent variable was the stretched length of the rubber band and the dependent variable was the distance the rubber band traveled when it was released. The materials used were….
Data chart
Independent variable: length of rubber band / Dependent Variable: Distance the band travels.Results- your graph goes here.
Analysis
The hypothesis was if a rubber band is stretched out farther then it will fly further.
The results showed that the further the rubber band was stretched out the further it flew. (unless it didn’t)
Based on the evidence the hypothesis was supported. (unless it wasn’t because your evidence was different)
Discussion
1. The question was…
2. The results showed that…
3. Based on the evidence the hypothesis was…
4. The answer to the question is….
5. It can be inferred that these results occurred because…
6. These results help to prove the relationship between….
7. A real world application of this knowledge is….
8. Problems that occurred during this experiment….
9. If this experiment were to be conducted again we would…
10. New Questions we have about this is…..
11. Future experiments could….