# Picket fence free fall lab

Picket Fence Free Fall

We say an object is in free fall when the only force acting on it is the earth’s gravitational force.

No other forces can be acting; in particular, air resistance must be either absent or so small as to

be ignored. When the object in free fall is near the surface of the earth, the gravitational force on

it is nearly constant. As a result, an object in free fall accelerates downward at a constant rate.

This acceleration is usually represented with the symbol g.

Physics students measure the acceleration due to gravity using a wide variety of timing methods.

In this experiment, you will have the advantage of using a very precise timer connected to the

calculator and a Photogate. The Photogate has a beam of infrared light that travels from one side

to the other. It can detect whenever this beam is blocked. You will drop a piece of clear plastic

with evenly spaced black bars on it, called a Picket Fence. As the Picket Fence passes through

the Photogate, the LabPro or CBL 2 interface will measure the time from the leading edge of one

bar blocking the beam until the leading edge of the next bar blocks the beam. This timing

continues as all eight bars pass through the Photogate. From these measured times, the program

will calculate the velocities and accelerations for this motion and graphs will be plotted.

Picket

fence

Figure 1

OBJECTIVE

• Measure the acceleration of a freely falling body (g) to better than 0.5% precision using a

Picket Fence and a Photogate.

MATERIALS

LabPro or CBL 2 interface Vernier Photogate

TI Graphing Calculator Picket Fence

DataGate program clamp or ring stand to secure Photogate

Modified from and reported with permission

Vernier Software & Technology

Experiment 5

5 – 2 Physics with Calculators

PRELIMINARY QUESTIONS

1. Inspect your Picket Fence. You will be dropping it through a Photogate to measure g. The

distance, measured from one edge of a black band to the same edge of the next band, is

5.0 cm. What additional information will you need to determine the average speed of the

Picket Fence as it moves through the Photogate?

2. If an object is moving with constant acceleration

Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
Paper format
• 275 words per page
• 12 pt Arial/Times New Roman
• Double line spacing
• Any citation style (APA, MLA, Chicago/Turabian, Harvard)

# Our guarantees

We value our customers and so we ensure that what we do is 100% original..
At Custom Writing, we believe in exemplary services that are fully geared toward customer satisfaction. That is why we don’t shy away from giving you the following guarantees;

### Money-back guarantee

Trusting us with your work is the best decision you have made, our pleasure lies in seeing you satisfied at 100%. If in the rear chance it happens that you are not satisfied, then know that we will equally not be satisfied. But worry not, our 30 days- Money back guarantee is all you need and that is what we promise you..

### Zero-plagiarism guarantee

We utilize profoundly equipped and gifted writers who produce unique papers liberated from any form of plagiarism. To guarantee this, we run all papers finished by our scholars through a Plagiarism checker to ensure uniqueness and originality. In any case, on the off chance that you have vulnerabilities about the originality or falsification of any paper we have finished and conveyed to you, please get in touch with us straight away. We will quickly investigate, and if the paper is seen as counterfeited, we will take suitable actions including but not limited to, revising the paper for free and in extreme cases we will activate the money back guarantee.

### Free-revision policy

We have an obligation deliver great and specially composed assignments. Our revision strategy endeavors to ensure total client satisfaction, comfort, and a genuine feelings of serenity. We make minor updates and corrections to the underlying request as part of our continuous assistance. However, revisions should just incorporate changes and alterations that were not effectively met, in the underlying request and that are inside the rules as per the current request structure..

Our client's Data is an Integral part of our business but clearly, we are not in the business of offering our clients' very own data to others. We realize that you care how your online data is utilized and shared, we equally value your trust that we will do so cautiously and sensibly. We Promise to ensure the security of your own data during transmission by utilizing encryption conventions and programming. Likewise assist us with securing your information by not sharing your passwords and usernames.

### Fair-cooperation guarantee

In submitting a request with us, you consent to the services we give. We will strive to take the necessary steps to convey a far reaching paper according to your prerequisites. Equally we depend on your cooperation to guarantee that we convey on this order.

## Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
\$26
The price is based on these factors: