Which is not an example of thermal energy?
a. Boiling water on a stove b. Cooking rice with charcoals
c. Ironing clothes d. Eating food
What is d. Eating food
When heat is transferred by the movement of liquids or gases which also needs a medium that receives and brings the heat with it is called what?
What is heat convection?
The freezing point of water is?
What is 0 degrees Celsius
Substances will ______ or contract when subjected to changes in temperature.
What is expand
What device is this?
What is a thermometer
Specific latent heat of fusion of water is defined as what?
a. Quantity of heat b. Condensation
c. Vapor collides with cold water d. Liquid to a solid
What is a. Quantity of heat
Heat radiation transfers thermal energy through the what?
What is the sun
The boiling point of water is?
When a substance is HEATED the space between the particles will do what?
What does it mean to expand?
What is to get bigger
What can expand or contract with changes in temperature?
a. Water bottle b. Sunscreen
c. Concrete roads d. Plate
What is c. Concrete roads
What is the transfer of heat through physical contact (using a medium like metal objects)?
What is heat conduction
What is the melting point?
What is when solid becomes a liquid
Do the particles EVER change size?
NO
Turning from a solid to liquid is called what?
A) Melting point B) Boiling poing
What is melting point
When vapour condenses it beomces what?
What do we use a thermometer for?
What is to measure the temperature
What is condensation?
What is when gas turns into a liquid
When a substance is COOLED the space between the particles do what?
What is contract
When liquid water heats up it becomes what?
What is gas
What would happen if we didn't have thermal energy (the sun)?
What is the Earth would be frozen and no life would exisit
What is vaporisation?
What changes size in when a substance is either hot or cold?
What is the space between the particles
transfer that radiates thermal energy all around without any needs of a medium (the Sun) is called what?
What is heat radiation