Pendulum Final Project (Gr.10) HELP

In summary, the conversation discusses the relationship between the shape of a bob and the air resistance it experiences while swinging as a pendulum. The wider the bob, the more air resistance it will face and therefore swing fewer times in a minute due to the opposing force of gravity. The website mentioned provides further information on this concept, specifically in regards to fluid friction in gases.
  • #1
Jaci24
1
0
Does this make any sense to anyone? please email me! jacileafsfan24@aol.com
"If the shape of the bob is wider, then there will be more air resistance so it will swing fewer times in a minute because the gravity is still the same, but the air resistance will force it to slow down."
Any help would be appreciated!
 
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  • #2
Yes, it makes sense. The air surrounding the pendulum exerts a drag force on it that opposes its motion. For details check out the following site.

http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html

Use the bubble maps to take the following path:

Mechanics-->Fluids-->Fluid Friction

Then click on "Fluid friction concepts". You'll be interested in fluid friction in gases, since air is a gas.
 
  • #3


Dear Jacileafsfan24,

Thank you for reaching out for help with your pendulum final project. The statement you have provided does make sense and is a correct explanation of how the shape of the bob can impact the number of swings per minute. The wider the bob, the more surface area it has, which means it will experience more air resistance. Air resistance is a force that acts in the opposite direction of motion and can slow down the pendulum's swings. However, the force of gravity remains constant, so the pendulum will still swing back and forth, but at a slower pace due to the added force of air resistance. I hope this helps with your project. If you have any further questions, please do not hesitate to email me. Best of luck with your project!

Sincerely,
 

1. What is a pendulum and how does it work?

A pendulum is a weight suspended from a fixed point that can freely swing back and forth. It works by converting potential energy (stored energy due to its height) into kinetic energy (energy of motion) as it swings back and forth.

2. What is the purpose of a pendulum final project for Grade 10?

The purpose of the pendulum final project for Grade 10 is to apply the concepts of physics, such as motion and energy, to a real-life scenario. It also allows students to practice their experimental and data analysis skills.

3. How do you calculate the period of a pendulum?

The period of a pendulum is calculated using the equation T = 2π√(L/g), where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity. This equation is derived from the relationship between the length of a pendulum and its period.

4. What factors affect the period of a pendulum?

The period of a pendulum is affected by its length, the mass of the pendulum, and the acceleration due to gravity. Other factors that can affect the period include air resistance, the angle of release, and the amplitude of the swing.

5. How can the results of a pendulum final project be applied in real life?

The results of a pendulum final project can be applied in real life in various ways. For example, the concept of a pendulum is used in clock mechanisms to keep time. It is also used in seismographs to measure and detect earthquakes. Understanding the physics of pendulums can also help in designing and improving structures to withstand earthquakes and other natural disasters.

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