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WorksheetsHeat transfer (1)
Total questions: 40
Worksheet time: 28mins
What happens when a cold drink sits in a hot room?
It remains cold
It gets warmer
It starts boiling
It starts to freeze
When two things are the same temperature:
They have the same number of molecules
Their molecules stop moving
Their molecules move at the same average speed
Heat transfer between the two things stops
When you heat a pot on a stove, the handle gets warm. Which type of heat transfer is responsible?
Conduction
Radiation
Convection
All of the above
Thermoses work because they minimize which kinds of heart transfer?
Conduction and convection
Conduction and radiation
Convection and radiation
Conduction, convection, and radiation
Heat from the Sun reaches Earth through which type of heat transfer?
Conduction
Radiation
Convection
All of the above
Convection currents occur:
Only in liquids
When a dense substance is warmer than a less dense substance
In both liquids and gases
Weakly in solids
All of the following are examples of convection currents, excerpt:
Warm air rising in a house
Cold water sinking to the bottom of the lake
Water flowing through pipes
Steam from hot soup rising into the air
Which most often occurs when a pot of water boils?
Condensation
freezing
melting
evaporation
Which best explains why a wooden spoon can be used to stir hot soup on the stove?
Wood is a good conductor of heat and transfers energy to the spoon.
Wood is a poor conductor of heat and transfers energy to the spoon.
Wood is a good conductor of heat and does not allow the transfer of energy to the spoon.
Wood is a poor conductor of heat and does not allow the transfer of energy to the spoon.
Which shows an example of convection?
Jose cooks an egg in a pot of boiling water.
Clara burns her hand by touching a light bulb.
Lucy wraps herself in an electric blanket to keep warm.
Ben holds the end of a metal rod in a fire to cook hot dogs.
Which is an example of radiated heat for cooking?
cooking a pot of soup
scrambling eggs on the stove
grilling hot dogs over a campfire
frying hamburgers in a frying pan
Which substance will conduct the least amount of heat?
glass
copper
plastic
aluminum
Which is an example of radiation?
boiling a pot of noodles for dinner
getting hot from lying in the sun
feeling warm while taking a shower
burning yourself after touching a hot plate
Why does an ice cube melt when dropped into hot liquid?
The liquid absorbs heat from the ice.
Heat from the liquid transfers to the ice.
Heat from the ice transfers to the liquid.
Cold from the ice transfers into the liquid.
Which is the best example of conduction?
boiling a pot of water
feeling heat from a fireplace
a hot air balloon rising and falling
touching a hot handle and getting burned
Which best describes the transfer of heat due to the movement of gases and liquids?
radiation
convection
evaporation
condensation
Which is an example of heat being transferred by conduction?
a furnace heating the air in a school
an ice cube melting in a person's hand
a pot of water on a stove boiling
the sun heating water in a swimming pool
Which best explains why metal is a good material to make frying pans?
Metal is a good conductor of heat and transfers heat from the stove to the food.
Metal is a good conductor of heat and does not transfer heat from the stove to the food.
Metal is a poor conductor of heat and transfers heat from the stove to the food.
Metal is a poor conductor of heat and does not transfer heat from the stove to the food.
How does heat energy from the Sun reach Earth?
radiation
solar wind
conduction
convection
Which would most likely turn gas into a liquid?
cooling
boiling
warming
freezing
Sarah is stirring her hot chocolate with a metal spoon, and she notices that the spoon is getting hot. This is most likely caused by which type of heat?
conduction
convection
radiation
insulation
Ice cubes are placed in a glass of water that is at room temperature. Which statement best describes the temperature of the water after 10 minutes?
The temperature decreases because some of the water's heat is lost to the ice.
The temperature decreases because some of the ice's heat is lost to the water.
The temperature increases because some of the coolness of the water is absorbed by the ice.
The temperature increases because some of the coolness of the ice is absorbed by the water.
What is the concept in which two objects in contact with each other transfer heat until they are equal?
thermal equilibrium
thermal energy
thermal equality
thermal heat
