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How might using a pizza stone instead of a pan affect how a pizza cooks faster?
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
Thermal energy is a measure of total kinetic energy
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
A student wants to raise the temperature of 200 g of water from 25 °C to 50 °C by adding a hot piece of iron metal. Which of these properties of the iron will the student need to know to carry out the experiment?
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
A hot potato at 80 ºC is placed in a bowl of soup at 40 ºC. The surrounding room is at 20 ºC. Which correctly describes the directions of thermal energy transfer?
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
On a sunny day, the sidewalk and the street are both warmer than the atmosphere because they have more________________.
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
What is thermal energy?
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
Four objects are all made of iron. Which has the most total thermal energy?
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
Which of these is a measure of the average kinetic energy of the molecules of a material?
true
the total kinetic energy in an object
heat
potato to soup, and soup to room
temperature
a nail at 100 °C
the stone transfers energy slowly, so the crust cooks evenly
mass and volume
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