Electromagnetic Waves and Types of Waves

A wave refers to a periodic disturbance or oscillation that moves away from a source and carries energy.

False (B)

<p>An electromagnetic wave is defined as a wave that can transmit its energy through a vacuum (i.e., empty space).</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum.</p> Signup and view all the answers

<p>A trough</p> Signup and view all the answers

<p>Amplitude</p> Signup and view all the answers

<p>Wavelength</p> Signup and view all the answers

<p>Frequency</p> Signup and view all the answers

<p>v = fλ</p> Signup and view all the answers

<p>The electromagnetic spectrum describes all the kinds of light, including those the human eye cannot see.</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Radio waves</p> Signup and view all the answers

<p>Visible light (A)</p> Signup and view all the answers

<p>Radio waves = kilometers to meters Microwaves = millimeters to micrometers Infrared radiation = micrometers to nanometers Visible light = nanometers to nanometers Ultraviolet radiation = nanometers to nanometers X-rays = nanometers to picometers Gamma rays = picometers to less than 10 to the power of -13 meters</p> Signup and view all the answers

A periodic disturbance or oscillation that moves away from a source and carries energy.

Waves that can transmit energy through a vacuum, like empty space.

Waves that require a medium to transmit energy, meaning they can't travel through empty space.

The lowest point of a wave.

The maximum displacement of particles from their rest position during a wave's oscillation.

The distance between two successive crests or troughs of a wave.

The distance between the crest and trough of a wave.

The undisturbed position of particles in a medium before a wave passes through.

The maximum displacement of particles from their rest position during one complete oscillation.

The distance between two successive points that are in phase on a wave, like two crests or troughs.

The number of oscillations or cycles a wave completes per unit time.

The speed at which a wave propagates through a medium, calculated by multiplying frequency and wavelength.

The entire range of electromagnetic radiation, including all types of light, visible and invisible.

Electromagnetic radiation that is visible to the human eye. It's a small part of the electromagnetic spectrum.

Electromagnetic radiation with wavelengths longer than visible light. Used in communication and heating.

Electromagnetic radiation with wavelengths shorter than visible light but longer than infrared. Used in ovens and radar.

Electromagnetic radiation with wavelengths shorter than visible light but longer than visible light. We feel it as heat.

Electromagnetic radiation with wavelengths shorter than visible light. Can cause sunburn and damage skin.

Electromagnetic radiation with very short wavelengths, highly penetrating. Used in medical imaging.

Electromagnetic radiation with the shortest wavelengths and highest energy. Emitted by radioactive substances.

Electromagnetic waves are produced by the vibration of charged particles. All light waves are examples of electromagnetic waves.

All electromagnetic radiation travels at the speed of light, approximately 186,000 miles (300,000 kilometers) per second.

The electromagnetic spectrum describes all types of electromagnetic radiation. It includes radio waves, microwaves, infrared radiation, visible light, ultraviolet rays, X-rays, and gamma rays.

The higher the frequency the higher the energy.

The higher the frequency the shorter the wavelength.

The lower the frequency the longer the wavelength.

It is a mechanical wave that transmits energy through a medium by compressions and rarefactions.

It is a region of high pressure in a sound wave

It is a region of low pressure in a sound wave.