Show:
Electromagnetic Spectrum
Heat and Heat Flow
Sound
Law of Conservation of Energy
Miscellaneous
100
How is the electromagnetic spectrum organized?
by wavelength
100
What is the definition of temperature
average kinetic energy of the atoms and molecules
100
What does a sound wave need to travel?
a medium / material / matter
100
Define the law of conservation of energy.
Energy can not be created or destroyed but can be changed from one form into another.
100
What is thermal energy?
The total kinetic energy of all the atoms in a substance.
200
Name the parts of the electromagnetic spectrum in order.
radio waves, microwaves, infrared radiation, visible light, ultraviolet, x-rays, gamma rays
200
What is heat?
the thermal energy transfered between objects that are at different temperatures
200
Changing the ___________ changes the volume of a sound wave. Changing the ___________ changes the pitch of a sound wave.
amplitude / frequency
200
Explain the energy transformation of a rock rolling down a hill.
Potential to kinetic
200
Draw and lable the following parts of a wave: crest, trough, and wavelength.
teacher will judge
300
Which part of the electromagnetic spectrum has a wavelength the size of a football field?
radio waves
300
What will happen if two objects at different temperatures come into contact?
Heat will flow from the warmer object to the cooler object.
300
Rank the 3 common states of matter from the one that conducts sound the fastest to the one that conducts sound the slowest.
solid, liquid, gas
300
Explain the energy transfer and conversion from the sun to an apple tree producing an apple to you eating the apple and then you run a race.
nuclear to electromagnetic to chemical to kinetic
400
Name the 3 main uses of ultraviolet light.
sterilize, detect forgery, get a sun tan,
400
The specific heat of water is 4184 J/kg*C. The specific heat of lead is 128 J/kg*C. The specific heat of glassis 837 J/kg*C. The specific heat of copper is 387 J/kg*C. These materials were all left outside on a 100 degree F day for 1 hour. Rank them from coolest to hottest at the end of that hour.
lead copper glass water
400
When you are outside, can you hear far away sounds better on a cold day or a hot day? Why?
A hot day. The hotter the air, the more kinetic energy the atoms have (the faster it's moving) so it will conduct the sound wave faster.
400
Explain the energy transfer in a car the drives uphill and then stops at the top.
chemical to kinetic to potential
400
Explain using the properties of light, why you are cooler when you wear a light colored shirt when you play outside in the summer.
A light colored shirt will reflect more light and therefore absorb less heat energy. A darker colored shirt will absorb more light and therefore absorb more heat energy.
500
Part 1: What produces all types of electromagnetic energy? Part 2: How does this energy travel?
Part1: the sun Part 2: radiation
500
What are the three temperature scales
Fahrenheit, Celsius and Kelvin
500
Michelle’s noticed that different sized tuning forks created different sounds. What caused the tuning forks to create different sounds?
The frequency of the sound wave changed with the length of the tuning fork.