Pendulum, Medical, Industrial

Slides:



Advertisements
Similar presentations
ELECTROMAGNETIC SPECTRUM
Advertisements

Waves 1 What are waves? Different types of waves carry signals to televisions and radios. Sound and light waves move all around you and enable you to hear.
Chapter 17 Mechanical Waves and Sound
Electromagnectic Spectrum
William Herschel measured the temperature of different colors of light
10.1 Light and the Electromagnetic spectrum. What is Light? A form of energy It is a range of electromagnetic radiation (a wave pattern made of electric.
Electromagnetic Waves
James T. Shipman Jerry D. Wilson Charles A. Higgins, Jr. Waves and Sound Chapter 6.
18.2 The Electromagnetic Spectrum The Waves of the Spectrum What waves are included in the electromagnetic _____________________? The electromagnetic spectrum.
The Electromagnetic Spectrum. The waves of the spectrum Herschel used a prism to separate the wavelengths present in sunlight. Herschel used a prism to.
ELECTROMAGNETIC WAVES
The Electromagnetic Spectrum
Ultrasound Medical Imaging Imaging Science Fundamentals.
Electromagnetic Waves & the Electromagnetic Spectrum.
Light Energy and the Electromagnetic Spectrum
Electromagnetic Waves (light) & the Electromagnetic Spectrum
17.2 Waves of the electromagnetic Spectrum
Electromagnetic Spectrum A) The Waves of the Spectrum 1) EM spectrum: all of the frequencies or wavelengths of electromagnetic radiation 2) The EM spectrum.
The Electromagnetic Spectrum
Light Energy and the Electromagnetic Spectrum. What is light? Light is a kind of energy. Without light energy you could not see anything!!!!!!!! Light.
The Electromagnetic Spectrum
Chapter 17 & 18 Waves.
17.4 Sound and Hearing Sound waves are longitudinal waves that travel through a medium. Many behaviors of sound can be explained by using a few properties:
Using Sound for many purposes
Waves? Chapter 17 Notes.
ELECTROMAGNETIC SPECTRUM.  Water and sound waves transfer energy from one place to another- they require a medium through which to travel. They are mechanical.
Electromagnetic Waves & the Electromagnetic Spectrum.
Electromagnetic Waves & the Electromagnetic Spectrum.
Electromagnectic Spectrum
1© Manhattan Press (H.K.) Ltd. Reflection of water waves Application of reflection Application of reflection 9.2 Reflection Phase change on reflection.
Chapter 13 Sound. Section 1 ► ► Electromagnetic waves   made by vibrating electric charges and can travel through space. ► ► Electric and magnetic.
Mechanical Waves and Sound
Electromagnetic Spectrum Radio Waves  Gamma Rays.
Section 2: Waves of the Electromagnetic Spectrum Objectives: list and compare different types of electromagnetic waves describe how the electromagnetic.
Chapter 9: Waves and Light. Lesson 1: Waves of the Electromagnetic Spectrum Key Questions: – 1. How does the Sun’s energy arrive on Earth? – 2. How do.
Chapter 3 : The Electromagnetic Spectrum
Chapter 17 - Light An electromagnetic wave is composed of electric and magnetic fields that are vibrating perpendicular to each other. An electromagnetic.
Invisible Light F How do waves move? All waves carry energy from place to place –The way the wave carries the energy depends on the kind of wave.
Electromagnectic Spectrum
Waves we can’t see…. EM Spectrum The electromagnetic spectrum is the entire range of EM waves. It is divided into regions according to the length of the.
Wireless Communication
ultraviolet radiation
Electromagnetic Waves. Electromagnetic Spectrum Double Slit Experiment tour of the EM spectrum.
Electromagnetic Waves & the Electromagnetic Spectrum.
18.2 The Electromagnetic Spectrum Finding the Electromagnetic Spectrum Today, we know that we can’t see certain electromagnetic waves. But how did we.
Types of Electromagnetic Radiation and Law of Reflection Chapter 18:2 And Chapter 19.1 page 570.
Sound and Hearing Chapter 17.4 Properties of Sound Waves Sound waves are longitudinal waves. Many behaviors of sound can be explained using a few properties-
Electromagnetic Spectrum The EM Spectrum What do a radio, heat lamp, the Sun, and an X-ray Machine have in Common? – All four transmit energy.
Electromagnetic Waves & the Electromagnetic Spectrum.
ELECTROMAGNETIC WAVES & THE ELECTROMAGNETIC SPECTRUM WAVES.
WAVES: SOUND & LIGHT Waves carry energy from one place to another © 2000 Microsoft Clip Gallery.
Electromagnetic Waves Spring REVIEW Since light has the same speed in the same material it travels at a constant speed until it enters a new material.
Electromagnetic Waves
Waves 1 What are waves? Different types of waves carry signals to televisions and radios. Sound and light waves move all around you and enable you to hear.
Good if: you can explain what is meant by ultrasound.
Waves What are waves? Different types of waves carry signals to televisions and radios. Sound and light waves move all around you and enable you to hear.
Doppler Effect.
18.2 The Electromagnetic Spectrum
17.4 Sound and Hearing.
SOUND AND LIGHT A Review.
The Electromagnetic Spectrum
William Herschel measured the temperature of different __________ of light. The temperature was lowest at the _______ end and highest at the ________ end.
II.) Electromagnetic Spectrum
Electromagnetic Waves
Electromagnetic Waves
Waves of the Electromagnet Spectrum
ELECTROMAGNETIC WAVES Radio Communication
Waves 1 What are waves? Different types of waves carry signals to televisions and radios. Sound and light waves move all around you and enable you to hear.
Electromagnetic Waves & the Electromagnetic Spectrum
Waves 1 What are waves? Different types of waves carry signals to televisions and radios. Sound and light waves move all around you and enable you to hear.
Presentation transcript:

Pendulum, Medical, Industrial Wave Applications Pendulum, Medical, Industrial

Pendulum Any mass on a string that sways back and forth due to the force of gravity. It can demonstrate the oscillatory motion that defines a wave. The energy it has is constantly being transferred between gravitational potential energy and kinetic energy.

Pendulum The period of a simple pendulum can be found using the length of the string and the constant acceleration due to gravity. 𝑝𝑒𝑟𝑖𝑜𝑑=2𝜋 𝑙𝑒𝑛𝑔𝑡ℎ 𝑎𝑐𝑐𝑒𝑙𝑒𝑟𝑎𝑡𝑖𝑜𝑛 𝑑𝑢𝑒 𝑡𝑜 𝑔𝑟𝑎𝑣𝑖𝑡𝑦 𝑇=2𝜋 𝐿 𝑔

Example Problem What is the period of a simple pendulum on Earth that is 75 cm long?

Medical Applications X-rays and ultrasounds are two common procedures that can be used to diagnose illness or injury. X-rays are a type of electromagnetic waves that have very small wavelengths. The x-rays take images of the internal structure of the body by placing a film behind the patient as the x-rays are projected onto the area of the body to be imaged. Different shading on the film indicates the different densities of the area of the body.

Medical Applications Ultrasounds are used to see the internal structure of the body. An ultrasound is a sound wave with a frequency greater than 20 kHz, which is well above the range of human hearing. The wave can penetrate the soft tissue but bounces off of higher density organs and bones. A machine reads the reflected sound waves and converts them into images. An echocardiogram is an ultrasound performed on the heart that also uses the Doppler Effect to determine the way the blood is flowing.

Industrial Applications Radios, televisions, microwave ovens, navigation, lasers, and even some cleaning techniques rely on wave behaviors to function and are essential to the operation of many industrial settings. Radios receive electromagnetic radio waves that are sent from a station. These radio waves have the longest wavelengths of any type of electromagnetic waves, so they can travel long distances. In AM radios, the amplitude is changed or “modulated.” In the FM radios, the frequency of the wave is modulated. Analog televisions also receive signals through higher frequency radio waves.

Industrial Applications Microwaves use electromagnetic waves to heat food. Waves with similar frequencies are also used in communication over short distances through Bluetooth devices. Radar uses high frequency radio waves to determine the location of an object. Radar equipment sends out a wave pulse and measures how long it takes to return to determine an object’s location. Sonar devices follow the same process, but they use sound waves instead.

Industrial Applications Lasers produce light within an extremely narrow range of wavelengths and are used in many tools to cut materials or scan barcodes. DVD and Blu-Ray players use lasers to read the tiny grooves that hold information on the surface of a disk. The light from a Blu-Ray player has a shorter wavelength of 405 nm allowing the grooves on the disk to hold more information the be smaller, so more information can be stored on the disk. Lasers can be used in multiple industrial applications such as laser cutters, laser welders, laser levels, and laser scanning, just to name a few.

Industrial Applications Ultrasonic Cleaning: Items are placed in a basket, then lowered into a machine which contains fluid (can be tap water or a specialized cleaning solution). When the machine is turned on, a transducer in the machine produces high frequency sound waves. Dirt and debris is removed from the equipment by the ultrasonic vibrations within the cleaning fluid. The equipment is then taken out of the solution and is clean. These ultrasonic cleaners can be used to clean medical instruments, tools, coins, watches, jewelry, and electronic equipment.