Other
PHYS 111A Centripetal Force of Simple Pendulum Lab Report
- Module
- Institution
This is a comprehensive and detailed lab report on;Centripetal Force of Simple Pendulum.
[Show more]
Seller
Follow
anyiamgeorge19
Reviews received
Content preview
Physics - Online Lab: Centripetal Force of Simple PendulumOBJECTIVE
The objective of this experiment is to investigate the centripetal force exerted on a pendulum bob
using real data from a centripetal force apparatus (force sensor and smart gate) and compare it to
the centripetal force obtained from the speed of the pendulum. We will also explore the
oscillations of a simple pendulum using simulation software.
EQUIPMENT USED:
● Real Centripetal Force data
● Scientific Calculator
● PhET Pendulum Simulation Software
THEORY
Newton’s second law of motion is:FNet = ΣF = m a , with FNet as the net force, a as the
acceleration, and the m as the mass. The second law of motion ultimately states that in the scenario where
a net external force FNet acts on the mass m of an object, there will be a resultant acceleration a that is
directly proportional to the net force. The acceleration’s magnitude is inversely proportional to the mass
and the overall direction of the acceleration ends up being in the same direction as the net force, as this is
a vector. This formula can be used for a simple oscillating pendulum moving in the vertical direction.
When taking Newton’s second law of motion in regards to the radial direction, the formula
mv 2
becomes ΣFr = Fc = . ΣFr is the net force about the radial direction, Fc is the centripetal
r
force, v is the speed and r is the radius. So to find the centripetal force at the lowest central position will
mv 2
be found from the formula: Fc = T − mg = , Fc is the centripetal force, T is the tension, m
r
is the mass, v is the speed, r is the radius(length) and g is the acceleration due to gravity. Some important
observation to gain from this is that the mass affects the time period, and with no friction, the mass will
have no effect.
, Physics - Online Lab: Centripetal Force of Simple Pendulum
DIAGRAMS
The tension faces toward
the center while the weight
faces the opposite direction.
Due to the tension being
larger
(Ftension > Fweight ), the
Fnet points to the center.
The period of a simple oscillating pendulum was 2.0113s with the length as 0.99m, the mass of
0.20kg, the gravity of 9.81 m/s2, and the friction is set as none.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller anyiamgeorge19. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.19. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71184 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now