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Energy & Heat Review Flashcards | StudBud
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Energy & Heat Review
Energy & Heat Review
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1
What is the transfer of energy from the sun to earth called?
Convection
Conduction
Radiation
Insulation
2
Heating water to create steam is an example of what type of energy?
Mechanical
Thermal
Sound
Chemical
3
How is radiation different from conduction?
Radiation moves heat from colder to warmerobjects
Conduction doesn't need matter to move through
Radiation doesn't need matter to move through
Radiation needs matter to move through
4
Which one of these substances has a low specific heat?
Wood
Styrofoam
Air
Metal
5
How do you change a gas to a liquid?
Remove heat
Add heat
6
Who replicates experiments?
Your lab partner
No one
Another scientist
You
7
When the kinetic energy of the molecules increases, what also happens?
temperature increases
thermal energy and temperature increases
thermal energy decreases
thermal energy also increases
8
Scientific knowledge...
kept secret so no one steals ideas
once proven, it's never disproven
constantly tested and retested
never changes
9
You put gas in your car so you can drive home. That's chemical into _______?
chemical
nuclear
light
mechanical
10
Which choice lists the states of matter in order from fastest moving to slowest moving?
liquid, solid, gas
gas, liquid, solid
gas, solid, liquid
solid, liquid, gas
11
"Close that door! You're letting all the cold air out!" Wha't wrong with this?
Cold air moves in, not out
The fridge is removing heat from inside
The frigde is absorbing cold air
Cold doesn't move, heat does
12
What direction does heat flow?
Both ways
From cooler to warmer objects
From warmer to cooler
13
How do you change a solid into a liquid?
Remove heat
Add heat
14
How long will heat flow between objects of different temperatures?
until the first object is a hot as the first
forever
until they are close, but not the same temp
until they are both the same temperature
15
What is temperatue actually a measue of?
how cold something is
how hot something is
how heat moves
the kinetic energy of the particles
16
The pendulum will have the most potential energy
in between the top and bottom of its swing
at the top of its swing
at the bottom of its swing
17
Why isn't all the beginning energy available in the end?
It's reused
It's changed into heat & sound
It's destroyed
It's changed into mechancial & sound
18
How many independent variables should you have in an experiment?
3
2
4
1
19
How is this radiator transferring heat to the cat?
Radiation
Convection
Insulation
Conduction
20
Energy due to motion
kinetic
thermal
nuclear
potential
21
What temperature will the mixed water be?
33 degrees
66 degrees
20 degrees
26 degrees
22
the variable that is changed in an experiment
controlled
constants
independent
dependet
23
Burning coal is an example of what type of energy?
Sound
Nuclear
Mechanical
Chemical
