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WorksheetsThermal Concepts
Total questions: 23
Worksheet time: 55mins
Thermal energy occurs when two objects in contact have different …
temperatures.
total kinetic energy of the molecules.
intermolecular potential energy.
internal energy.
Energy of the molecules of an object which is the sum of random kinetic energy and intermolecular potential energy is called …
Mechanical energy.
Thermal energy.
Internal energy.
Work energy.
Some chefs prefer copper cooking pots over those of stainless steel.
c copper = 385 J kg-1 K-1
c steel = 500 J kg-1 K-1
Which will heat up quicker over the same flame?
The copper one.
The stainless steel one.
It depends on the mass of each pot.
It depends on the temperature of the flame.
Some chefs prefer copper cooking pots over stainless steel.
c copper = 385 J kg-1 K-1
c steel = 500 J kg-1 K-1
For two pots of the same mass and starting temperature, which will stay warmer longer once the stove is turned off?
The copper one.
The stainless steel one.
It depends on the height of the chef's hat.
It depends on the color of the stove.
The handle of a cooking pot will most likely become hot when cooking because of a method of thermal energy called…
conduction.
convection.
convention.
radiation.
Temperature is a measure of …
the average kinetic energy of the object.
the kinetic energy of the molecules.
the average potential energy of the molecules.
the average kinetic energy of the molecules.
Intermolecular potential energy is …
due to the random motion of the molecules.
due to the forces between molecules.
a portion of the thermal energy of an object.
what changes when temperature of an object changes.
This state of matter has very strong inter-particle forces and has a regular arrangement of their atoms.
solid
liquid
gas
plasma
The lowest possible temperature.
-10 K
0 K
0 0C
273 K
Convert 37 oC to kelvin
-37 K
37 K
236 K
310 K
When objects are in thermal equilibrium,
both will have the same temperature
energy transfer will continue to take place
the hotter object has greater internal energy
both objects will have unequal internal energy
It refers to energy required to increase the temperature of a unit mass of the body by one kelvin.
specific heat capacity
heat capacity
latent heat
specific latent heat
This refers to the amount of energy required to heat a body by 1K.
specific heat capacity
heat capacity
latent heat
specific latent heat
The amount of energy required to change phase of a unit mass at constant temperature.
specific heat capacity
heat capacity
latent heat
specific latent heat
Water currents that flow from the equator to the poles move heat from warmer climates to colder ones are an example of which transfer of heat?
Conduction
Convection
Radiation
When a volcano erupts, hot molten rock can come to Earth’s surface. This lava burns or melts most things it touches. The lava is so hot it can set a tree on fire even if the tree is several feet away from it. This phenomenon is caused by the process of...
Conduction
Convection
Radiation
________ is the transfer of energy from one particle of matter to another within an object or between two objects in direct contact
Conduction
Convection
Radiation
__________ is a type of heat transfer that occurs through the movement of fluids, which can be solid liquid or gas.
Conduction
Convection
Radiation
__________ is the transfer of energy by electromagnetic waves
Conduction
Convection
Radiation
The law of conservation of energy applies to everything - even when energy transforms
True
False
