Show:
Work and Simple Machines
Sound
Waves
Motion and
Momentum
Force and Newton's Laws
100
A knife is an example of this.
What is a wedge?
100
How is sound produced?
Vibration
100
they are rhythmic disturbances that carry energy without matter
What are waves
100
Velocity is speed and ____________________________________________________________________________________________________________________________________________________________________________________________________
What is Direction?
100
What is the unit of force?
Newtons (N)
200
It is a device that makes doing work easier.
What is a machine?
200
What are some examples of medical uses of sound waves?
ultrasound for kidney stones and ultrasound for medical imaging
200
This is the measure of one waves crest to the next
What is wavelength
200
distance divided by time = this
What is speed
200
Force=mass x acceleration
What is Newton's 2nd law?
300
This is how much a simple machine multiplies your force.
What is mechanical advantage?
300
If a sound is 20 decibels higher than another, how many times louder is that sounds?
100 times louder
300
What kind of waves do not require a medium?
electromagnetic waves
300
vf-vi/t = this
What is acceleration
300
the force that is always there that slows everything down.
What is friction?
400
What is a wheel barrow?
a second class lever
400
What is the least amount of decibels that can cause hearing damage?
85 dB
400
What is the relationship of wavelength and frequency
inverse relationship
400
how difficult it is to stop an object is _____________________
What is momentum?
400
if you are falling from the top of the Eiffel tower you are gaining speed but this is slowing your acceleration down.
What is air resistance?
500
What kind of lever is like a baseball bat?
3rd class lever
500
echoes are an example of these
What are reflected sound waves?
500
Who is your favorite teacher?
Mrs. Hurd, no just kidding its Mr. Ariail!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
500
What is the relationship between mass and inertia
more mass=more inertia (direct)
500
"every action has an equal and opposite reaction."
What is Newton's 3rd law?