The four parts in which I had to go through this investigation was:
Part 1: Practice
Part 2: Does mass affect the swing rate of a pendulum?
Part 3:Does Arc length affect the swing rate of a pendulum?
Part 4:Does Length affect the swing rate of a pendulum.
It asks why was it necessary to do this investigation in four parts?
I just put, that it was necessary to do this investigation in four parts because each part has a variable which we have to go through to see if it will affect the swing rate of the pendulum.
More info would be appreciated, thanks :-) I posted this yesterday as well, but got no responses back, but that's alright :-)
It seems to me that you've answered your own question, but you could add that to test one certain part to see if it affected the swing rate you had to keep all other parts constant. You can't just change everything at once and expect to be able to see what affects it and what doesn't.
This was YOUR lab experiment. Your first answer is fine. Your next three answers should be based upon your findings.
Part 3 requires careful measurements up to a wide swing angle (or arc length). I hope your tried 60 degrees from vertical at least.
Thank you so much Gabrielle, thank you drwls :-)
It is necessary to do this investigation in four parts in order to systematically study the different variables and their impact on the swing rate of a pendulum. Each part focuses on a specific variable: mass, arc length, and length. By conducting the investigation in parts, you can isolate and manipulate one variable at a time, which helps to clearly identify the relationship between the variable and the swing rate.
In Part 1: Practice, you may have chosen to familiarize yourself with the experimental setup, collect baseline data, or understand how to measure the swing rate accurately. This part helps to ensure that you are prepared for the subsequent parts of the investigation.
In Part 2: Does mass affect the swing rate of a pendulum, you may have tested how different masses have an impact on the swing rate while keeping other variables, such as length and arc length, constant. By varying the mass while using the same pendulum length and arc length, you can see if mass has any influence on the swing rate.
In Part 3: Does arc length affect the swing rate of a pendulum, you may have manipulated the arc length while keeping other variables constant. By adjusting the distance the pendulum travels in its back and forth swing, you can determine if the arc length has an effect on the swing rate.
Finally, in Part 4: Does length affect the swing rate of a pendulum, you may have varied the length of the pendulum while keeping other variables constant. This allows you to observe if there is a relationship between the pendulum length and its swing rate.
By conducting the investigation in four parts, you are able to systematically examine each variable's impact on the swing rate individually, without the interference of other variables. This approach allows you to draw more reliable conclusions about the relationship between each variable and the swing rate of the pendulum.