# Alcantara, Janna Althea J. 10 St. Francis Xavier (SCIENCE CPT)

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Effects of Electromagnetic Waves SCIENCE CPT

Effects of Electromagnetic Waves SCIENCE CPT

Effects of

Electromagnetic

Waves

SCIENCE CPT

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Topic

To control the effects of electromagnetic waves. Present a scientific basis on how to control EMW radiations through demonstration of project

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What is an Electromagnetic Wave (EMW)? DEFINITION Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.

Electromagnetic waves or EM waves are waves that are created as a result of

vibrations between an electric field and a magnetic field. In other words, EM waves

are composed of oscillating magnetic and electric fields.

DEFINITION

What is an ilectromagnetic Wavc (EMW)? DEFINITION )magnetic waves or EM waves are waves that are created as a

What is an

Electromagnetic Wave

(EMW)?

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Electric Oscillation Wavelength Propagat'311

Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. They are hence known as ‘electromagnetic’ waves. The electric field and magnetic field of an electromagnetic wave are perpendicular (at right angles) to each other. They are also perpendicular to the direction of the EM wave.They are deflected neither by the electric field, nor by the magnetic field.

Description

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Used for the transmission of Electromagnetic Waves The transmission of electrical energy by wires, the broadcasting of radio signals, and the phenomenon of visible light are all examples of the propagation of electromagnetic energy. Electromagnetic energy travels in the form of a wave. Electromagnetic radiation can be expressed in terms of energy, wavelength, or frequency. Wavelength Amplitude Crest Referrence Line Trough D If 1 second, freq = 1 Hz Amplitude Time

Wavelengt Amplitude Crest Referrence Line Trough If 1 second, freq = 1 Hz Amplitude Time

Wavelength Amplitude Crest Referrence Line Trough If 1 second, freq = 1 Hz Amplitude Time

Used for the transmission of Electromagnetic Waves

The transmission of electrical energy by wires, the broadcasting of radio signals, and the phenomenon of visible light are all examples of the propagation of electromagnetic energy. Electromagnetic energy travels in the form of a wave. Electromagnetic radiation can be expressed in terms of energy, wavelength, or frequency.

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The Electromagnetic Spectrum

Microwave radiation will cook your popcorn in just a few minutes, but is also used by astronomers to learn about the structure of nearby galaxies

MICROWAVE

Night vision goggles pick up the infrared light emitted by our skin and objects with heat. In space, infrared light helps us map the dust between stars.

INFRARED

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Visible Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible

Visible

Visible

Our eyes detect visible light. Fireflies, light bulbs, and stars all emit visible light.

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Ultraviolet radiation is emitted by the Sun and are the reason skin tans and burns. "Hot" objects in space emit UV radiation as well.

ULTRAVIOLET

A dentist uses X-rays to image your teeth, and airport security uses them to see through your bag. Hot gases in the Universe also emit X-rays.

X-RAY

Doctors use gamma-ray imaging to see inside your body. The biggest gamma-ray generator of all is the Universe.

GAMMA RAY

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The Electromagnetic Spectrum DEFINITION DESCRIPTION The Electromagnetic The electromagnetic Spectrum. The spectrum is a continuum electromagnetic (EM) of all electromagnetic spectrum is the range of waves arranged according all types of EM radiation. to frequency and Radiation is energy that wavelength. The sun, travels and spreads out as earth, and other bodies - the visible light it goes radiate electromagnetic that comes from a lamp in energy of varying your house and the radio wavelengths. The waves that come from a spectrum of waves is radio station are two divided into sections types of electromagnetic based on wavelength radiation.

The Electrq Spectr

The Electromagnetic Spectrum

The Electromagnetic Spectrum. The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.

DEFINITION

The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths. The spectrum of waves is divided into sections based on wavelength

DESCRIPTION

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EMW Blocking Activity

Prepare the following materials: devices, wrappers(Cotton clothing, Aluminum foil, Plastic wrapper or any plastic that can wrap, Wax paper or any paper, Rubber glove)

STEP 1

Start the Activity

STEP 2

Conclusion

STEP 3

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Cellphone COTTON CLOTHING non blocker ALUMINUM FOIL partial blocker PLASTIC WRAPPER non blocker BOND PAPER non blocker RUBBER GLOVE non blocker Timeline of activities

ctivities

Timeline of activities

non blocker

COTTON CLOTHING

partial blocker

ALUMINUM FOIL

non blocker

PLASTIC WRAPPER

non blocker

BOND PAPER

non blocker

RUBBER GLOVE

Cellphone

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Timeline of activities

partial blocker

COTTON CLOTHING

non blocker

ALUMINUM FOIL

non blocker

PLASTIC WRAPPER

non blocker

BOND PAPER

non blocker

RUBBER GLOVE

TV remote control

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Conclusion If the source of the sounds is from the phone the partial blocker is an aluminum foil because it can shield to block loud noises and sound vibrations, as for the non blockers are cotton clothing, paper, rubber gloves because the sound vibration can pass through these. As for the remote control the partial blockers are cotton clothing this can block the magnetic wave from the remote control, as for the non blockers are plastic wrapper, paper, rubber gloves because the magnetic waves can pass through these things easily.

Conclusion

Conclusion

If the source of the sounds is from the phone the partial blocker is an aluminum foil because it can shield to block loud noises and sound vibrations, as for the non blockers are cotton clothing, paper, rubber gloves because the sound vibration can pass through these. As for the remote control the partial blockers are cotton clothing this can block the magnetic wave from the remote control, as for the non blockers are plastic wrapper, paper, rubber gloves because the magnetic waves can pass through these things easily.

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" Science is the key to our future, and if you don't believe in science, then you're holding everybody back"

~Bill Nye

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THANK YOU! CREATED BY: ALCANTARA, JANNA ALTHEA J. 10 ST. FRANCIS XAVIER

CREATED BY: CREATED BY: CREATED BY:

ALCANTARA, JANNA ALTHEA J. ALCANTARA, JANNA ALTHEA J. ALCANTARA, JANNA ALTHEA J.

10 ST. FRANCIS XAVIER 10 ST. FRANCIS XAVIER 10 ST. FRANCIS XAVIER

ANK YO

THANK YOU!