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WorksheetsEnergy Unit Exam
Total questions: 35
Worksheet time: 3hrs 55mins
The transfer of energy by electromagnetic waves is called
conduction
convection
radiation
insulation
Which of the following are kinds of heat transfer.
Conduction
Convection
Radiation
All of the above
Which of the following electromagnetic waves is given off as heat?
ultraviolet light
x-rays
gamma rays
infrared rays
Which portion of the electromagnetic spectrum includes the range of light that can be detected by the human eye?
ultraviolet light
visible light
infrared light
x-rays
Which part of the electromagnetic spectrum has high enough energy to cause sunburn?
infrared light
visible light
ultraviolet light
microwaves
How does heat flow?
Always from cold to warm
Always from warm to cold
Both warm to cold & cold to warm
It depends on the temperature
What state of matter is position E.?
Solid
Liquid
Gas
The drops of water that appear on the outside of a glass of cold water on a warm day are an example of?
Sublimation: A solid turning into a gas.
Condensation: A gas changing to a liquid.
Evaporation: A liquid changing to a gas.
Deposition: A gas changing to a solid.
When a substance freezes, how much energy is released during the process?
2260 J/g
5 J/g
334 J/g
2594 J/g
How much energy is required for the process of sublimation to occur?
334 J/g
2260 J/g
2594 J/g
1600 J/g
How much energy is released during condensation?
334J/g
1902J/g
75 J/g
2260 J/g
Some 1kg of water and 1kg of diamond are heated to the same temperature. Which is true?
They both require the same amount of energy
The diamond needs around 8 times more energy
The water needs about 8 times more energy
The diamond heats up slower than the water
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
How is light interacting in the image?
It is bouncing off the surface of the water.
It is being bent.
It is being scattered.
It is being absorbed.
What is the boiling point of water on the Fahrenheit scale?
0oF
202oF
100oF
212oF
Convert 0 degree and 20 Celsius into degree Fahrenheit
32 and 76
32 and 67
32 and 78
32 and 68
What is the standard unit for temperature in the United States?
Kelvin
Fahrenheit
Celsius
Which is true about white light?
it reflects all color of light
it absorbs all color of light
it only reflects red, blue, and yellow light
What colors are being absorbed?
red, orange, yellow
green, blue, indigo, violet
Electromagnetic waves vary in ___________________________.
the speed they travel in a vacuum.
wavelength and frequency.
the way they reflect.
the orientation of their electric and magnetic fields.
The sun's energy is carried on _______________________.
Electromagnetic waves
Transverse waves
compressional waves
If you see a green leaf on a tree, that means...
Green is the color being reflected off the leaf.
Green is the color being absorbed by the leaf.
All the colors are being reflected off the leaf.
All the colors are being absorbed by the leaf.
What would heat up the fastest if left out in the sunlight on a clear, summer day?
Liquid Water
Dry Air
Lead
Granite
Why does water heat heat up and cool down VERY SLOWLY?
High Specific Heat
Low Specific Heat
It's solid
It's always cold
Which state of matter is least dense?
Solid
Liquid
Gas
Heat transfer by convection is caused by differences in what two things:
Thickness and material
Weight and electricity
Temperature and density
If a substance is a good insulator of heat energy it will ____________.
get hot very fast
cause weather patterns to shift
Be useful in insulin production
Take a long time to get hot
In conduction, heat is transferred by the ____ of molecules.
Collision
Movement
Breakage
Combination
Erica puts cold ice cream on a hot cookie for desert. Which statement BEST describes what is happening?
Heat from the hot cookie is going into the cold ice cream.
Electricity moves from the hot pie to the cold ice cream.
Cool air from the ice cream is moving to the hot cookie.
The ice cream is creating heat from hot cookie.
