Sound Waves
What 3 states of matter can sound waves travel through?
Solid, Liquid, Gas
What are the 3 parts of the human ear?
Outer ear, middle ear, inner ear
What type of electromagnetic wave has the lowest energy?
radio waves
What is one example of a light source?
light bulb, fire, Sun
What is the colored part of the eye?
Iris
What state of matter do sound waves travel through the fastest?
Solids
What is the job of the outer ear?
Collect sound waves
How fast does light travel in a vacuum?
300,000 km/s
What is a reflecting surface that forms an image by regular reflection?
Mirror
What are the 2 types of cells found in the retina?
Rod and Cone Cells
What type of objects produce sound waves?
Vibrating Objects
What is the thin membrane that stretches across the ear canal called?
ear drum
Which type of UV-C wave is the most dangerous?
UV-C
What type of material does not allow light through?
Opaque
What is the layer of special light-sensitive cells that are located in the back of the eye called?
Retina
The speed of a sound wave in a material increases as the ______________________ of the material increases.
temperature
What is the name of the 3 tiny bones in the inner ear?
hammer, anvil, stirrup
What type of electromagnetic wave can the eyes detect?
Light
What are the 2 types of reflection?
Regular & Diffuse
What controls the size of the pupil?
the Iris
What type of wave is a sound wave?
Longitudinal
What is the small fluid-filled chamber in the inner ear?
cochlea
Name the electromagnetic waves in order from least amount of energy to greatest amount of energy.
Radio, Microwaves, Infrared, Light, UV, X-ray, Gamma rays
What type of mirror has a flat, reflecting surface that forms an image that looks like a photograph?
Plane Mirror
What part of the eye enables the eye to form a sharp image of nearby and distant objects?
Lens