Sound 1
How high or low a sound appears
What is pitch?
A sound with a frequency below human hearing (<20 Hz)
What is infrasound?
Scientific models used to describe light
What are: wave, stream of particles?
Curved transparent object that refracts light
What is lens?
Increase apparent size of an object via mirrors/lenses
What is magnification?
The rate sound waves transmit energy through a given area (how loud or soft sound is)
What is intensity?
A sound with a frequency above human hearing (>20,000 Hz)
What is ultrasound?
Why light intensity decreases as distance from a lamp increases
What is: light spreads out over a wider area?
Virtual image caused by light refracting in the atmosphere
What is mirage?
Transparent object with flat surfaces (at least one angled) that refract light
What is prism?
What is solid?
Sound waves travel slowest through this type of medium
What is: gas?
Part of electromagnetic spectrum that is felt as warmth
Converging lenses ________ an image
What is magnify?
Process of separating white light into its individual component (color) waves
What is dispersion?
A sound with a high frequency will sound like this
What is high-pitched?
A low intensity sound will sound like this
What is: soft?
Model used to describe how light bends around a doorway
What is wave model?
Color of light if you add additive primary colors
What is white?
This type of lens is used to magnify an image
What is converging (convex)?
Describe the Doppler Effect
What is: pitch changes as source of sound moves relative to observer (observer in front of sound = high pitch)?
How the human ear hears (general)
What is: vibrations in air sensed, vibration is amplified in ear, signal transmitted to brain?
X-rays have a relatively short wavelength - relate this to the wave's energy
What is high energy?
How prisms work
What is: light refracted - light enters prism but different wavelengths of each colored light = different speeds so colors separate?
Why light waves refract as they pass between mediums
What is speed of light changes in each medium?