Waves
Thermal Energy & Matter
Waves & Energy
Energy Sources
Simple Machines
100
What kind of waves are sound waves?
Compressional/longitudinal
100
What state of matter has definite shape and definite volume?
Solid
100
What do all waves transfer?
Energy
100
What is the difference between a renewable and nonrenewable resource?
Nonrenewable resources cannot be replaced after they have been used.
100
Inclined Plane- Connects a higher level to a lower level
200
As wavelength increases, what happens to frequency?
Frequency decreases.
200
Which type of heats transfer occurs when two objects are touching?
Conduction
200
What kind of waves do NOT require a medium to travel?
Electromagnetic Waves
200
What are the three fossil fuels?
Coal, Oil, Natural gas
200
Lever- Turns around a fulcrum
300
Draw a Transverse wave and label the crest, trough, equilibrium, amplitude, and wavelength
300
What happens to particles of matter when they are heated?
The move more quickly and usually expand
300
What characteristic does the loudness of a sound depend upon?
Amplitude
300
Name 1 renewable resource and 1 nonrenewable resource.
Renewable- Solar, Hydroelectric, Wind, Biomass, Geothermal
Nonrenewable- Nuclear, Fossil Fuels
300
Screw- An inclined plane wrapped around a pole. Can hold things together.
400
Draw a longitudinal wave and label the compression, rarefaction, and wavelength
400
What is the difference between endothermic and exothermic changes?
Endothermic- Energy is gained
Exothermic- Energy is lost
400
What type of energy does electromagnetic waves carry?
Radiant Energy
400
Trees and grass is an example of what kind of energy source?
Biomass
400
Wheel & Axle- Two parts that rotate together
500
Which state of matter does sound travel fastest through?
A solid
500
Provide an example of conduction, convection, and radiation
Conduction- burning yourself when touching a hot pan
Convection- Using a heater to warm the house in the winter
Radiation- Warming up by standing near a fire
500
What changes when a waves moves from one medium to another?
Wave Speed
500
Provide two reasons why we should try to not rely on nonrenewable resources.
- Makes pollution, will run out, can be dangerous
500
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Wedge- triangular shaped and can split, lift, or hold