The Pros And Cons Of Waves

A sound wave is a disturbance that repeats regularly in space and time and that transmits energy from one place to another with no transfer of matter. In Activity 2 on page 8 we had to model sound waves using an instrument. In our class we used a flute as the example and when the person blew into it, sound waves were produced. As they blew and changed the volume and pitch the sound waves changed. A sound wave is created when something vibrates. When something vibrates, longitudinal waves are created which we can hear. A longitudinal wave is a wave that transfers energy through compressions and rarefactions in the material that the wave travels which are all parts of a sound wave. In Activity 2 it states in some parts of the wave, the air molecules

Cooking in a microwave uses less energy. Toasting bread in a toaster is cheaper than using the grill.

The interesting question is how waves can become meaningful sounds. First off we must know that sound is a wave. It is impossible for sound to be a particle or atom because if it was a particle the two different sounds would eventually collide and if sound was an atom one sound would deflect another and neither one of these situations ever happens. A characteristic of sound is that different sounds pass through one another, for example, a sound and its echo. Therefore, it is safe to conclude that sound is a form of wave. Sound is molecules vibrating back and forth creating what we call a longitudinal wave. However, very few times do we consider sound as flow of power yet that is exactly what it is. It is a power that flows through the air steadily. The speed at which it travels depends on the temperature and the

In longitudinal waves the object doesn’t exactly follow the waves fully instead the object moves in a back and forth motion while the waves continues to move forward through the object. While in transverse waves the object doesn’t follow the waves as well and just moves up and down in the same position.

This answer is wrong because the wave propagates, not the medium. If the particles in the pulse travelled from one place to another then this would not be a wave. It would be translational or circular motion, but not oscillatory motion.

There is no doubt about the benefits of mobile phones. Mobile phones have so many advantages but there have some disadvantages too. It has become a vital element for every person but nowadays it has also becoming an addiction to the young generation. If we talking about Bangladesh, nine out of ten young people in the town area, have own a mobile phone. They use it in various purposes. Their attraction of mobile phone is increasing day by day. Medical science says that the radiation of mobile phone is too bad for human health.

Wave interactions include reflection, refraction, diffraction, and interference. Wave interactions occur when a wave hits something and it either reflects, refracts, diffracts, or there is an interference. Many different types of waves can be involved in wave interactions including sound, light, surface, etc.

The Microfridge, Is a devised electronic circuitry that shuts off power to the refrigerator whenever the microwave oven is switched on and pulls less than 20 amps of current, is a 1+1>2 device which can offer those who are in concern of using electronic appliances safely like college students and retailers a safer, more convenient and inexpensive combination of microwave and fridge.

Sound is a wave, and a wave can be remembered as a medium, carrying energy from one point to another. The sound wave has a resemblance of a slinky in its nature, for many reasons. The disturbance goes from one place to another, carried by the medium. Typically, the medium will carry energy through the air, although it could be any substance like water and steel. There is an original source of the wave; anything from someone’s vibrating vocal chords, or a tuning fork. Then, the sound is transported through the medium through particle-to-particle interaction. If the sound wave is moving through the

What is a sound wave? A sound wave is produced by a mechanical vibration, such as a tuning fork. The vibrating object causes the surrounding medium, such as air, to vibrate as well.The wave travels through the medium to a detector, like your ear, and it is heard.As with any type of wave, a sound wave is also described by it's wavelength, amplitude, period, and frequency.

Furthermore the group also mentioned that, even though the frequency for non-ionizing radiation is less dangerous, it is still possible to have side effects that may affect to our personal lives. There was a class where at the end we had a very brief discussion about radiation from electronics and the topic of cell phones/smart phones was brought up by few students when they were asked about their opinion or personal experience. Some side effects they mentioned from using their cell phones/smart phones constantly were having problems falling asleep along with minor headaches.

radiation (the kind used in X-rays) is known to cause cancer at high doses, the risks of

One of the most life changing technological innovations is the microwave oven. Invented by accident in 1946 by Dr. Percy LeBaron Spencer, the microwave oven was originally received poorly like many other new forms of technology. Fears that the microwave radiation would escape during use, or that it would ruin the art of cooking were some of the worries that many people had when this technology was released (Gallawa, 2007). Through years of refinement however, the microwave oven has become commonplace in kitchens across the globe. While fears of people giving up traditional cooking methods proved to be unfounded, microwaves have proven to be a valuable tool used by everyone from young kids to master chefs. In addition, an entire new food service industry was created based on the ability to quickly prepare food. Frozen foods and microwave popcorn are just a couple of the items we

Furthermore, Mobile phones are harmful to user’s health so they can affect their learning ways. Researchers have been found that mobile phones produce waves that are harmful to heart, internal and reproductive organs. Also, radiation from mobile phones can damage brain cell. (http://hubpages.com/hub/Effects-of-cell-phone--mobile-phone-use-on-our-brain-and-memory). For example, mobile phones can be implicated in brain tumours as a result of electromagnetic fields or radiation. (Raju, 2009, p.5) In http://hubpages.com/hub/Effects-of-cell-phone--mobile-phone-use-on-our-brain-and-memory,

phone creates an "electro magnetic field (EMF)" when it is connecting to the local antenna. This EMF radiation can range from "1.55 SAR (specific absorption rate of radio frequency