Physics Quiz

Electromagnetic spectrum, sources of light, angles, plane mirrors

What is the order of the Electromagnetic Spectrum?

Raging Martins Invaded Venus Using X-ray Guns

What are Radio Waves?

electromagnetic waves with the longest wavelengths and lowest frequencies

Examples of Radio Waves?

radio, TV signals, cell phones

What is Microwaves?

electromagnetic waves with shorter wavelengths and higher frequencies than radio waves

Examples of Microwaves?

microwave oven, telecommunications, airfryer

What is Infrared Light?

electromagnetic waves with shorter wavelengths and higher frequencies than microwaves

Examples of Infrared Light?

remote control, lasers, heat detection, keeps food warm, physical therapy

What is Visible Light?

the part of the electromagnetic spectrum that consists of waves detectable by the human eye

Examples of Visible Light?

human vision, rainbows, visible lasers

What is Ultraviolet Light (UV)?

electromagnetic waves with shorter wavelengths and higher frequency than visible light

Examples of Ultraviolet Light (UV)?

burns skin, increases risk of skin cancer, tanning bed, increases production of vitamin D, “black” lights

What is X-rays?

electromagnetic waves with very short wavelengths and high frequencies but less than gamma rays

Examples of X-rays?

medical imaging, security equipment

What is Gamma Rays?

the highest-energy electromagnetic waves with the shortest wavelengths and highest frequencies

Examples of Gamma Rays?

cancer treatment, product of some nuclear energy

What is Luminous?

objects that create their own light

Examples of Luminous Objects?

fire, skin, candles, flashlight

What is Non-luminous?

objects that reflect light only and do not produce light

Examples of Non-luminous Objects?

tree, book, table

What is Incandescence?

light is produced when an object becomes extremely hot, most of the energy is released as it is inefficient

Examples of Incandescence?

incandescent light bulb

What is Light from Electric Discharge?

light is produced from high voltage electricity

Examples of Light from Electric Discharge?

lightning, neon lights

What is Phosphorescence?

materials absorb radiation and store some of the energy that re-emits over time

Examples of Phosphorescence?

glow in the dark stickers, wrist watches

What is Fluorescence?

energy is absorbed and immediately re-emitted as a different wavelength

Examples of Fluoresence?

fluorescent dyes in detergent, highlighter ink

What is Chemiluminescence?

light is produced from a chemical reaction while mixing two chemicals that are originally separate

Examples of Chemiluminescence?

glow sticks

What is Bioluminescence?

light is produced by a chemical reaction in living organisms

Examples of Bioluminescence?

fireflies, jellyfish, fungi

What is Triboluminescence?

light is produced by friction or crushing

Examples of Triboluminescence?

crushing sugar cutes, biting wintergreen candy

What is Light Emitting Dioxide (LED)

light is produced when an electric current flows through semi-conductors

What do LEDs not use?

a filament, produce less heat, and more energy efficient than incandescent bulbs

Examples of Light Emitting Dioxide?

LED bulbs, christmas lights

How do Rainbows form?

when sunlight and rain are present together, as light passes through water droplet it bends (refraction), and separates white light into all colours of the rainbow

How do we see colour?

objects absorb some colours of light and reflect others