Show:
Waves
Wave Properties
Wave Behavior
Sound and Hearing
Miscellaneous
100
What is a wave?
What is a rhythmic disturbance that carries energy
100
The distance from crest to crest or trough to trough?
What is wavelength
100
The bending of light waves around a barrier?
What is diffraction
100
The part of the ear that helps us keep our balance
What is the semicircular canal
100
If a baseball is pitched east at a speed of 40km/h. The batter hits the ball west at a speed of 40km/h. Did it accelerate? Why or why not?
What is yes because it changed direction.
200
Waves that use matter to transfer energy?
What is mechanical waves
200
This color has the longest wavelength and the lowest frequency?
What is red.
200
A disturbance that travels through a medium as a longitudinal or compressional wave is called ________
What is sound.
200
The pathway that we hear sound is
The outer ear, ear canal, middle ear, inner ear, cochlea
200
What is the formula for acceleration?
What is final speed - initial speed/ time
300
A wave who's energy causes the matter in the medium to move up and down at right angles?
What is transverse waves
300
Why do you see lightning before you hear thunder?
What is light travels faster than sound
300
Which behavior of light allows magnifying glasses and contact lenses to bend light?
What is refraction
300
Describe the cochlea. Which part of the ear is the cochlea located?
What is snail like shell filled with fluid. It contans over 30,000 hair cells. The cochlea is located in the inner ear.
300
State Newton's 1st and 3rd Law of Motion.
What is an object at rest stays at rest unless an unbalanced force acts on it. For every action there is an equal bu opposite reaction.
400
What are electromagnetic waves?
What is a wave that does not require a medium to transfer energy
400

Name 4 types of electromagnetic waves.

What is Radio waves, Infared waves, microwaves, Xrays, Gamma rays, ultraviolet waves, visible light waves

400
State the definition for reflection, refraction, diffraction, and absorption. (Key words)
What is bounce back, bends when it goes from one medium t another, bends around a barrier, disappear
400

State the steps that allows you to hear

What is vibration of the eardrum?

400
What is the net force on an object with 10 N of force going west and 5 N of force going east?
What is 5 N west or left.
500
Name an electromagnetic wave with low energy and then name an electromagnetic wave with high energy?
What is a radio wave has low energy and a gamma rays have high energy
500
What is the amplitude measured from? What does the amplitutde tell us about a sound?
What is crest to rest position or trough to rest position. Amplitude tells us how loud a sound is.
500
What happens when light waves go from one medium to another in refraction?
What is changes speed
500
State the steps that allow you to hear a sound. Describe what each organ does.
What is outer ear ( satellite), middle ear ( eardrum, ASH) inner ear( cochlea), nerve cells to the brain
500
Name all six simple machines. Give an example of each one. Explain how at least one of the simple machines make work easier.
What is wedge. pulley, screw, inclined plane, wheel and axle, lever.