Energy and Electromagnetic Radiation

Flashcards about different forms of energy. Describing electromagnetic radiation, technological advances using radiation, and potential adverse affects.

Energy

The measurable ability to do work.

Chemical Energy

Energy stored in the bonds of atoms.

Electrical Energy

Energy from the movement of electrons.

Stored Mechanical Energy

Energy from the movement of objects to return to their original state.

Nuclear Energy

Energy that holds the nucleus of an atom together.

Thermal Energy

Heat energy.

Gravitational/Potential Energy

Energy stored in an object's height.

Motion/Kinetic Energy

Energy from the movement of molecules.

Radiant Energy

Energy that comes in waves.

Electromagnetic Radiation

Energy traveling in waves through space that radiate from energy sources.

Photons

Energy particles with energy and movement, but no mass or electrical charge.

Speed of Light

The speed at which all photons travel.

Electromagnetic Spectrum

All possible forms of electromagnetic radiation.

Luminol

A chemical used to find traces of blood that reacts with iron to give off visible light.

Infrared Photography

Creates images by sensing temperature differences, often used to find hidden evidence.

X-rays, Infrared, and UV Radiation (in art forgery)

Used to uncover art forgery by showing brush strokes, pigments, and underlying paintings.

Magnetic Resonance Imaging (MRI)

Uses radio waves and magnets to create images of tissues; unhealthy tissues look different from healthy ones.

X-ray Imaging

Used for diagnosing conditions like broken bones and cavities in teeth.

Blue Light Cancer Detection

Cancerous tissue looks dark under blue light of ultraviolet radiation, while normal tissue glows.

Remote Sensing

Using satellites to gather information about Earth using different types of electromagnetic radiation.

Weather Satellites

Use reflected visible light and infrared radiation to obtain weather information.

Lisa Satellite

Measures visible light and infrared radiation to map Earth's land surface.

Hubble Space Telescope

Orbits Earth and uses mirrors to collect and focus visible light, as well as sensing UV and infrared.

Focus (light)

To bring light to a point of clear image.

Very Large Array

The largest radio telescope on Earth, consisting of 27 receivers.

Visible Light Range

Ranges from 400nm to 800nm.

Ionizing Radiation

Waves that can detach electrons from atoms, creating an ion.

Non-ionizing Radiation

Electromagnetic radiation that does not have enough energy to detach electrons from atoms.

Ultraviolet (UV) Rays

Example of ionizing radiation that can cause cancer.

Infrared

Electromagnetic radiation sensed as heat.

Radio Waves

Used in MRI to create images of tissues.

Gamma Rays

A type of electromagnetic radiation used to view the universe.

X-Ray

A type of electromagnetic radiation used to view the universe.

Microwave

A type of electromagnetic radiation used to view the universe.

Potential Energy

Also known as Gravitational Energy

Kinetic Energy

Also known as Motion Energy

Violet

Highest energy in the visible light spectrum.

Red

Lowest energy in the visible light spectrum.

High Frequency

Short wavelength

Low Frequency

Long wavelength