WorksheetsCh. 5 Thermal Energy Test
Total questions: 50
Worksheet time: 50mins
Thermal energy is NOT transferred
from cold to hot
by convection
from hot to cold
by radiation
Conduction takes place most effectively in
solids
the Bermuda triangle
gases
a vacuum
Wood and plastic are used as handles on pots because they are
conductors
insulators
so so beautiful
noncombustible
When molecules move in the currents of fluids, thermal energy is transferred by
conduction
radiation
convection
fluition
An example of a good conductor is
glass
silver
wood
plastic
Thermal energy from the sun reaches the Earth by
convection
conduction
wind
radiation
Higher temperatures indicate __________.
slower motion of molecules
ice, ice, baby
faster motion of molecules
molecules at rest
The boiling point of water is __________.
100 K
0 degrees C
100 degrees F
100 degrees C
If you hold a paper cup containing hot cider in your hand, thermal energy...
does not flow
flows from the air to the hot cider
flows from the hot cider to your hand
WHERE IS THE HOT CHOCOLATE???
Which of the following is not a good insulator?
a pocket of air
blubber on your finger
a down jacket
copper wire
The type of heat transfer that does NOT require a medium to travel through is known as __________.
convection
radiation
conduction
magic superpowers
What type? Tomato soup boiling on the stove.
conduction
convection
radiation
What type? Sun heating the inside of a car.
conduction
convection
radiation
Which object has these energy transformations taking place?
Kinetic-->Mechanical---->Electrical
Food consumption
Lamp
Windmill
Match
Which object has these energy transformations taking place?
Solar---> Chemical--> Potential, Kinetic
Nuclear Power Plant
Photosynthesis
Geothermal Power Plant
What type? A room heated by an air vent
conduction
convection
radiation
What type? Heat from the sun going through space
conduction
convection
radiation
What type? Heated fluids rise and form currents
convection
radiation
What type? Works best with metals like silver and copper
conduction
convection
radiation
Which state of matter has the most energy?
solid
liquid
gas or plasma
they are all the same
Which state of matter has the greatest density?
solid
liquid
gas
density stays the same in all the states
What happens to temperature during a phase change?
temperature stays the same
temperature increases
temperature decreases
Which object has these energy transformations taking place?
Electric-->Thermal, Light, Kinetic, Sound
Lamp
Windmill
Photosynthesis
Toaster
When the girl in the lab we did ate then pedaled the bike she was changing______
into___________.
chemical, potential
thermal, kinetic
chemical, kinetic
thermal, potential
Temperature is defined as:
Average kinetic energy of all the particles in a material
The highest amount of kinetic energy in an object
The lowest amount of kinetic energy in a pot
Average amount of food in a refrigerator
What is a conductor?
Water in a teapot
Energy coursing through your veins
Food in your fridge
A substance that allows the flow of electrical charge or transfers thermal energy through matter
What is an insulator?
A substance that conducts energy
A material that conducts electrical current
A material that does not conduct heat or electric current
Exposed wires (dangerous)
Heat that is transferred by direct touch is
conduction
convection
radiation
Heat transfer in a liquid or gas due to less dense, warmer matter rising and denser, cooler matter falling.
Convection
Radiation
Conduction
Temperature
Movement of heat in the form of electromagnetic waves, which can travel through a vacuum.
Radiation
Conduction
Convection
Temperature
Which type of heat transfer is most correct when touching a metal handle of a hot pan?
Convection
Conduction
Radiation
Temperature
Which type of heat transfer assists in the circulation of water in a hot water system?
Conduction
Convection
Radiation
Temperature
The movement of energy from a warmer object to a cooler object is called?
Conduction
Heat Transfer
Radiation
In the system with the kettle, thermal energy from the flames of the fire transfers energy to the kettle causing the liquid to become steam. The mechanical energy spins the turbines which generates ___________energy.
Thermal
Potential
Nuclear
Electrical
Sun's light, warming the Earth is an example of __________.
Convection
Conduction
Mechanical
Air conditioner cooling a room is an example of ________.
convection
radiation
Water boiling
Conduction
Convection
Radiation
In a solar panel, light energy from the sunlight
causes solar panels to create __________
energy.
Nuclear
Electrical
Radiation
Convection
Identify the method of heat transfer shown in the image: Marshmallow over a campfire.
Conduction
Convection
Radiation
Identify the method of heat transfer shown in the image: Chocolate melting in your hand.
Conduction
Convection
Radiation
Air currents (wind)
conduction
convection
radiation
Movement of Earth's mantle
conduction
convection
radiation
Which method of heat transfer is demonstrated by the pan heating on a stove? [diagram]
conduction
convection
radiation
Which method of heat transfer explains why the 2nd story of a building is warmer than the 1st?
conduction
convection
radiation
Hot car seat from the Sun
conduction
convection
radiation
Bottom of the pool is colder than the surface
conduction
convection
radiation
Identify the method of heat transfer depicted in the image of food being cooked in a microwave.
conduction
convection
radiation
Identify the method of heat transfer depicted in the image of a hot air balloon.
conduction
convection
radiation
Heat always moves from ________ areas to ________ areas.
cooler to warmer
warmer to cooler
Heat moves from cold object to warm objects.
True
False
