IScience - Thermal Energy Test Flashcards
A refrigerator uses ___ to change the temperature inside the refrigerator.
Coolant
A heat engine is ___ machine.
A non-efficient
Radiation transfers energy by ___ waves.
Electromagnetic
___ is a good conductor of heat.
Metal
When a substance is cooled it usually ___.
Contracts
When temperature increases, average ___ increases.
Kinetic energy
In years past, people would put a hot water bottle in bed with them to help warm their feet and body. The transfer of the warmth from the hot water bottle to their feet is called ___.
Heat
When water is heated on a stove, which kind of energy is transferred?
Thermal energy
A hot iron is turned off and cools down to room temperature. The iron cools because ___.
Heat energy is transferred from the warm iron to the cooler room.
You place your hands near a fire to warm them up. You can feel the hear of the flames of a fireplace because of ___.
Radiation
You take a bottle of water out of the refrigerator. Your hand gets cold because of ___.
Conduction
Thermostats transform ___ into ___.
Thermal energy, mechanical energy
Which of the following is NOT an example of a heating appliance? A) Steam engine B) Curling iron C) Coffeemaker D) Clothes iron
A) Steam engine
A bimetallic coil is used in a thermostat because ___.
The two metals heat and cool at different rates
What part of an internal combustion engine causes the gas/air mixture to combust?
Cylinder
