Energy
The power of the sun is stored in fossil fuels! But in what form?
Chemical energy. You have to break those bonds (usually with fire) in order to release the energy.
What is wavelength?
The distance between two waves. Usually measured from the top of one wave to the top of another.
The frequency of a sound wave determines its ________
PITCH
Is energy created or destroyed? Explain! What's that called?
Nahhhhhhh, it's just transferred into different forms of energy. The the law of conservation of energy.
We're probably looking at some kinetic, gravitational, and potential... up to you to explain!
What in the heck is a surface wave?
The combination of transverse and longitudinal waves. You should be able to explain how it forms.
It's all about the medium that the waves are traveling through!
Transverse waves make the medium move perpendicular to the direction of the wave,
while longitudinal make the medium move parallel to the direction of the wave.
I can transfer heat in a few different ways. What are they? Make sure you can explain at least one thoroughly.
Conduction, Convection, Radiation. Be able to explain one well!
I push push push on an object, but it doesn't move! Have I done any work?
Nope! Work requires: force on an object, but it also requires that the object MOVE in the direction of that force.
What are factors that affect the speed of sound? Explain a bit, would you?
Elasticity/Stiffness, Density, and Temperature.
These are all aspects of the medium that sound travels through. Be sure to review the meaning of each!
What is the result when two waves interfere?
Ooooops this doesn't belong in this category!
What kind of mirror makes an upside down image?
CONCAVE OF COURSE
How do you calculate "power"?
Power = work / time.
Explain the Doppler Effect?
It has to do with pitch changing, depending on location of the object making the sound. Look it up! Make sure you can explain it.
You should definitely know the different parts of a wave.
You know, like frequency, amplitude, stuff like that!
Be able to thoroughly explain how your balloon-powered car demonstrates Newton's 3 Laws of Motion. What are the three laws, and how do they apply?
1. An object at rest will stay at rest until acted on by a force, and an object in motion will continue forever until acted on by other forces.
2.Force equals mass times acceleration, meaning a greater force causes greater acceleration
3. For every action, there's an equal and opposite reaction, describing interaction forces between bodies.
How would I calculate frequency? If a wave has a wavelength of 10 cm, and the wave is moving at 30 cm/second, what's my frequency?
Well, frequency is how many full waves pass by a point in a specific amount of time (usually a second). So, I'd probably count the number of waves (using the wavelengths). Frequency is measured in Herz (Hz).
3 Hz!
Waves can bounce off of stuff, or pass through (bent or otherwise altered). What's that called?
Bouncing off is reflection.
Passing through (but being altered) is refraction.
Make sure you know diffraction too!