Phet photo electric answer guide

 

 

 

NSET 110

 

 Photoelectric Effect PhET Lab

 

Name: ___________________________________________________

 

Open the Photoelectric Effect PhET Simulation. **Before adjusting anything answer the questions below**

 

1) Before you begin, what do will happen to …

 

a) the metal surface when light strikes it

 

b) the light the intensity slider is moved

 

2) Do you think all intensities of light will liberate electrons? Explain.

 

3) Do you think all wavelengths of light will liberate electrons? Explain.

 

Part 1 – Intro to Photoelectric Effect   

 

1) What can you change in the simulation?

 

2) Select a metal to study. Develop a procedure for determining the characteristics of the light necessary to liberate electrons from the metal. Write your procedure and your conclusions below.

 

3) Based on your chosen metal answer the following questions

 

a) At what wavelengths was it first possible to remove electrons?

 

b) What wavelengths were most effective?

 

c) What does intensity change?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Part II – Finding a Model for the Photoelectric Effect

 

4) Describe the three graphs you can view in the simulations by filling in the table below.

 

Graph

Relationship

Explanation (using physics terms)

Current vs. Battery Voltage

 

 

Current vs. Light Intensity

 

 

Electron Energy vs. Light Frequency

 

 

 

5) Propose a mathematical equation for the photoelectric effect using the terms we have discussed in class (work function, incident light, max E of ejected electrons). Use the simulation to verify your model and make a graph of the maximum electron energy vs. the light frequency.

 

Selected metal: ___________________

 

light wavelength (nm)

light frequency (Hz)

electron stopping voltage (V)

Ejected Electron KE (eV)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Place your order
(550 words)

Approximate price: $22

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:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
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

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more