Types of Heat Transfer
The process by which heat is transferred through direct contact of molecules.
What is conduction?
Matierals that allow heat to pass through them easily are called this.
What are conductors?
This term describes how most materials expand when heated.
What is thermal expansion?
The process of changing from a solid to a liquid is known as this.
What is melting?
This term refers to the amount of heat needed to raise the temperature of 1 gram of a substance by 1 degree Celsius.
What is specific heat?
The type of heat transfer that does not require a medium, like the warmth you feel from the Sun.
What is radiation?
Materials that do not conduct heat well and are used to keep items warm or cool are called this.
What are insulators
The metal strip found in some thermostats that bends to open or close a circuit is called this.
What is a bimetallic strip?
The change from a liquid to a gas at the surface is called this.
What is evaporation?
Compared to land, the specific heat of this substance is higher, meaning it heats up and cools down more slowly.
What is water?
The type of heat transfer that involves the movement of fluids such as air or water.
What is convection?
This common metal is often used in cooking pans because it is a good conductor of heat.
What is copper?
The expansion of the liquid in this device is used to measure temperature.
What is a thermometer?
The reverse of evaporation, when gas turns back to liquid.
What is condensation?
This is the unit of energy used to measure heat in the metric system.
What is the joule?
The type of heat transfer is most efficient in solids compared to liquids or gases.
What is conduction?
This material is often used in homes to prevent heat loss in winter and heat gain in summer.
What is insulation?
When laying railway tracks, gaps are left between the rails to allow for this effect in hot weather.
What is thermal expansion?
The temperature at which a liquid becomes a gas is known as this point.
What is the boiling point?
When you touch a hot surface and energy flows into your hand, the energy is transferred in the form of this.
What is heat?
The circular pattern is created by rising warm fluid and sinking cool fluid is known as this.
What is a convection current?
Name a material that is both a poor heat conductor and used in thermos bottles to keep drinks hot or cold.
What is glass?
This phenomenon occurs when water is cooled to ice, causing it to occupy more volume.
What is negative expanion?
The process where a solid turns directly into a gas.
What is sublimation?
This law states that energy in a closed system is conserved; it can neither be created nor destroyed, only transformed.
What is the law of conservation of energy?