# Phy107 - Essay Example

Summary
Wave velocity is the product of the wavelength and wave frequency. The wavelength is the distance between two points on a wave with the same phase, such as between crests or between troughs. When a wave passes through a material, or medium, how often the medium vibrates is referred to as the wave frequency…

## Extract of sample "Phy107"

Download file to see previous pages A blackbody emits infrared wavelengths at room temperature. As the temperature increases, the blackbody starts to emit visible light, starting from red to orange, yellow to white and blue with increasing temperature. When the blackbody turns white, it is already emitting ultraviolet radiation.
Stefan's Law states that the total energy radiated by a blackbody per unit surface area is directly proportional to the fourth power of its absolute temperature. This means that as temperature increases, the wavelength of the radiation emitted decreases.
Doppler Effect, or Doppler shift, happens when an observer is moving relative to the wave source - there is a change in the frequency of the wave perceived by the observer. This means that when we are approaching the wave source, we perceive a higher frequency. When we are receding from the wave source, we perceive a lower frequency.
Spectroscopy refers to the dispersion of an object's light into its component colors. By analyzing the light emitted by an object, the physical properties of that object such as temperature, mass, luminosity and composition can be inferred by an astronomer.
Continuous spectrum, as opposed to discrete spectrum, refers to energy at all wavelengths. It is emitted by warm objects. The spectrum of light with missing frequencies is called absorption spectrum. ...
Continuous spectrum, as opposed to discrete spectrum, refers to energy at all wavelengths. It is emitted by warm objects. The spectrum of light with missing frequencies is called absorption spectrum. The missing frequencies correspond to wavelengths of light that were absorbed.

3. Explain how a beam of light passing through a diffuse cloud may give rise to both absorption and emission spectra.

Suppose that a beam of light passes through a gas, some of the frequencies of the light will be absorbed by the gas. The rest of the frequencies will be able to pass through. When these surviving frequencies are dispersed through a prism, they will show a spectrum with gaps on it. The visible spectrum will correspond to the emission spectrum while the dark bands will correspond to the absorption spectrum.

4. List three properties of a star that can be determined from observations of its spectrum.

a. Total energy that the star radiates
b. Luminosity
c. Surface temperature

CHAPTER 5

1. List three advantages of reflecting telescopes over refractors.

a. Refractors tend to be heavier overall than reflecting telescopes because of their longer solid tubes and require a larger housing and a more massive mount.
b. Reflectors don't disperse color as most refractors are to one degree or another.
c. In a refractor the lens can only be supported along the edge so that the path is clear for light to come through unobstructed.

2. How does Earth's atmosphere affect what is seen through an optical telescope

The Earth's atmosphere is constantly moving, and different layers bend the light from a star in different directions, blurring our view from the ground.

3. What are the advantages of a CCD over a photograph

Cite this document
• APA
• MLA
• CHICAGO
(“Phy107 Essay Example | Topics and Well Written Essays - 750 words”, n.d.)
Phy107 Essay Example | Topics and Well Written Essays - 750 words. Retrieved from https://studentshare.org/miscellaneous/1509873-phy107
(Phy107 Essay Example | Topics and Well Written Essays - 750 Words)
Phy107 Essay Example | Topics and Well Written Essays - 750 Words. https://studentshare.org/miscellaneous/1509873-phy107.
“Phy107 Essay Example | Topics and Well Written Essays - 750 Words”, n.d. https://studentshare.org/miscellaneous/1509873-phy107.
Click to create a comment or rate a document

## CHECK THESE SAMPLES OF Phy107

### Social,cultural,and political influences in the delivery of healthcare services

...? Analyzing the social, cultural, and political influences in the delivery of healthcare services as pertains to quality improvement and risk management to the healthcare organization and patients served. Student Name Institution A Situational Analysis The state of the American health care system is among the three top issues that the American public would want policymakers to address. Its importance increases as economic insecurity continues to grow. The most frequently cited problems are gaps in coverage, the quality of care that patients receive and the high cost of insurance. Over 45 million Americans do not have health insurance because of high coverage cost, availability of employer coverage, individual priorities and health market... Analyzing...
13 Pages(3250 words)Research Paper

### Hispanic American Paper

...? Running head: Hispanic American paper Outline Introduction The Hispanic Ancestry The Relationship of Interviewees within the "Distributive System" in the United States Discrimination and Stereotypes and how they impact upon their Social Interaction My Experience in Relating to Members of the Hispanic Americans Introduction Hispanic Americans are either inhabitants of one of the Spanish America countries or citizens or residents in the United States from a Hispanic ancestry. The federal government coined the term in the 1970’s to refer to the persons referred to above. Hispanics constitutes people from many countries and ethnic groups such as Mexican, Puerto Rican and Cuban. They therefore represent different experiences in terms of social...
6 Pages(1500 words)Case Study

### Recruitment Process. Talent Management. People Equity

...? Week 4 Discussions Scenario From the provided scenario, it is viewed that in the organization previous recruitment process has created a considerable damage in morale as well as culture which needs to be rectified. It is apparent that existing employees cannot uphold ethical culture and productivity has also become quite less. Therefore, as a recruiter it is a responsibility to hire those employees who can maintain an ethical culture along with ensuring augmented productivity of the organization. During interview process, it is necessary to judge an individual through various perspectives in terms of qualification, enthusiasm about the given job, whether he/ she can adjust with organizational rules and regulations and the capability... Week 4...
5 Pages(1250 words)Essay

### Sport mgmt

... Sport Management Starting an entertainment business requires passion and a strong interest in the field. Having been in a band once, the speaker possessed just that: a passion for music. When he first decided to start an entertainment company, he experienced some issues which later acted as opportunities for driving his business forward. The speaker’s entertainment company named Rocky Mountain Entertainment now promotes concerts occurring in the several theatres that are part of the company. The company not only carries out the promotional activities but also involves other facets of marketing the event including buying events, producing them and selling its tickets. In general, one of the most critical tasks of starting a business... Sport Management ...
3 Pages(750 words)Essay

### Outline Chapters

...Table of Contents Table of Contents Chapter 2 Introduction to Career Information, Career Counseling and Career Development 2 1Chapter Outline and Ideas in Focus 2 1.1.1 Main Idea – Career Development 2 1.1.2 Secondary Ideas – Vocational Guidance and Career Development 3 1.1.3 Secondary Ideas – Need for the Career Development Services 3 Chapter 2 4 Trait – and – Factor and Developmental Theories of Career Choice and Development and Their Applications 4 2.1Chapter Outline and Ideas in Focus 4 2.1.1 Main Ideas - Trait – and – Factor and Development Theories 4 2.1.2 Secondary Ideas - Value – Based Theories 5 Chapter 3 6 Learning Theory –Based, Postmodern, Socioeconomic, and Decision Making Theories and their Applications 6 3.1Chapter Outline... of Contents ...
3 Pages(750 words)Essay

### Case study on Cafe Co

...Case study on Cafe Co Part 1. Storey (1989) in his treatise marked two ways of treating human resources within an organisation. The two ways are depicted in the form of ‘hard’ and ‘soft’ model of treating human resources. In the ‘hard’ model the human resources or staffs are taken to be the key pivots which would help the organisation in gaining significant competitive advantage over its competitors. Thus this model requires the managers to effectively recruit, train and develop such individuals to help the company meet its desired objective. However, the ‘soft’ model of human resource management takes into consideration the human factor related to such. The model prescribes that people must not be only seen as factors which would help... study on Cafe ...
18 Pages(4500 words)Case Study

### According to the existing material, to write a report to the management team to address the strategic issues facing the company as it embarks on expansion including international expansion

5 Pages(1250 words)Essay

### The Importance of Managing Change in the Air Transport Industry

...﻿Change Management Change is an inherent aspect in the air transport industry as employees are forced to change their job roles and places of work regularly (Kotter, 2010: 15). This paper concentrates of Su who has been hired on an Accelerated Graduate Management Development Programme. This programme requires recruits to change their job roles annually but in most instances they work at the Heathrow Airport during the five years programme. Su is presently working in the Heathrow Airport but was needed to work in Edinburgh for eight months. Later, she will be posted back to the Heathrow Airport. It can be observed that dealing with such change can be challenging for Su and the organisation. The paper suggests the steps that should be taken... Management ...
6 Pages(1500 words)Essay

### Assignment

...Crooks chapter 6 Answer: Improvisation offers a number of advantage. With improvisation, a teacher is able to adapt her lesson plan according to theinput she derives from her students. Often a lesson plan may be too fast or too boring for the students. In this case, improvisation is best. However, improvisation is not recommended for all teachers. It is suited for those teachers who are experienced and have the ability to handle and control class discipline. Richards and Lockhart chapter 6 There is conflict in the principles bulleted on pages 118-119. The writer first says that students should first study a grammar rule before practicing it. Then in the very next point, he says that students should practice before studying a grammar rule... chapter 6...
2 Pages(500 words)Assignment

### The History of advertising and Brand Promotion

1 Pages(250 words)Assignment
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

## Let us find you another Essay on topic Phy107 for FREE!

This Website is owned and operated by Studentshare Ltd (HE364715) , having its registered office at Aglantzias , 21, COMPLEX 21B, Floor 2, Flat/Office 1, Aglantzia , Cyprus.
• FAQ
• Blog
• New Essays
• Essays
• Miscellaneous