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16 questions
Total amount of thermal energy in an object depends on
temperature and number of particles
temperature
the object's specific heat
the number of particles
Which is NOT a heat transfer by radiation?
A bottle sitting in the sun that gets warm
Sitting beside of a campfire and feeling the heat
A pot of water heating over a hot stove
A person sunbathing
A fireplace is heating an entire house through
radiation
conduction
convection
Aluminum changes temperature at a slower pace than lead. Aluminum has a higher
temperature
conduction rate
thermal energy
specific heat
Roller coasters have gaps in the tracks so they can expand in hot weather due to
thermal expansion
specific heat
mood swings
thermal conductivity
Warming a marshmallow OVER a campfire is an example of
radiation
convection
conduction
global warming
When a gas or liquid heat up, what happens?
molecules are closer together, become less dense, and rise
molecules are spread out, become less dense, and rise
molecules are closer together, become denser, and rise
The rising and falling of air due to uneven heating of the Earth's surface is called
convection
radiation
conduction
does not happen
Mr. Salyer has a two-story house. In the winter, he uses his downstairs heating unit because the arm air
contracts, rises, and heats the house through conduction
expands, sinks, and heats the house through convection
expands, rises, and heats the house through convection
When a stethoscope touches your skin, what happens?
heat travels from the stethoscope to your skin
no energy is transferred
the stethoscope warms up due to humidity
heat travels from your warm body to the stethoscope
Compared to the Pacific Ocean, a cup of hot tea has
more thermal energy and a higher temperature
less thermal energy and a higher temperature
more thermal energy and a lower temperature
If two substances have the same AVERAGE kinetic energy, then
they have equal thermal energy
they have the same temperature
they have the same specific heat
Which is NOT a good insulator?
metal
plastic
wood
cloth
Thermal expansion is
a measure of the kinetic energy
all the energy of all the particles
the increase in volume of a substance due to an increase in temperature
The amount of energy needed to change 1 kg of a substance by 1 degree celsius is its
thermal energy
specific heat
temperature
ALL the energy of all the particles in a substance is a measure of its
temperature
insulator
specific heat
thermal energy
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