WorksheetsConduction and convection
Total questions: 10
Worksheet time: 10mins
How do molecules react when thermal energy is added to them?
They feel warmer but stay in place
They feel warmer and move slower.
They feel warmer and move faster
Molecules do not react with thermal energy only solar energy
Which of the following is an example of thermal energy transfer by conduction?
Put your fingers on a hot iron and you feel hot.
Thermal energy from a heater warming up your whole house.
Standing by a campfire and you feel hot.
How does thermal energy move?
From cooler objects to warmer objects.
From warmer objects to cooler objects
From metal objects to nonmetal objects
Very quickly in all directions
Which of the following is NOT a thermal conductor?
Iron
Copper
Steel
Glass
Which of the following is an example of convection?
A hair dryer is drying up your hair.
Boiling spaghetti noodles in water.
When a car engine turns hot after being turned on.
When a frying pan is touching a stove, what energy transfer method is happening?
Conduction
Convection
Radiation
Energy transfers from a region of _________temperature to a region of _________ temperature.
low to high
high to low
high to high
low to low
Warm air is __________ dense than cold air and rises creating convection currents.
more
less
True or False: Water and air are good thermal conductor .
True
False
What causes hot and cold water to become the same temperature once they are combined?
The thermal energy moves from cooler temperature to warmer temperature.
The thermal energy of the hot water runs out.
Thermal energy from the hot water is transferred to the cold water.
Thermal energy causes the water to boil.
