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Friday, 23 February 2018

A Full Investigation- Putting it all Together




In this investigation, you are to record the relationship between the height a ball is dropped from, and the height of the ball's first bounce.

Equipment: 

Meter ruler- tennis ball ( or another appropriate ball)
                                           retort stand- boss head and clamp.

Aim: Make a brief statement of the purpose of your investigation

Hypothesis: Make a prediction of what you expect to observe during your investigation.
 -If you dropped the ball the ball will bounce back and it will bounce half high/way.

Method: Give a step-by-step description of how your experiment is to be carried out.
 - grab the ball
 - Throw/ drop it.
 - measure it ( measurements must be made carefully to make sure all factors, except the independent variable, are the same.
 - write your observations.(When recording observations you should record only those that support your hypothesis.
 -  make results or make a graph.

Key Variables

Dependent:
-the hight of the bounce


Independent:
- where you dropped the ball from.

Control: 
-how much put a force on it or some person.

Results:
The first bounce is around 53cm we drop the height is a 100cm.
The second bounce is 26cm we drop the height is 50cm.
The third bounce is 15cm we drop the height is 30cm.
The fourth bounce is a 43cm we drop the height is 80cm.

Conclusion: each time we dropped the ball it bounces around half way.



1 comment:

  1. A really well structured investigation Alliah, well done! Maybe next time you can drop the ball from higher than 100cm? But otherwise really good job on your first science investigation!

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