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WorksheetsHeat Test
Total questions: 15
Worksheet time: 8mins
Which of the following are true about thermal energy?
involves the movement of atoms
warmer particles move faster
all objects have heat energy
heat flows from cold to hot
Heat transfers from warm to cold until both substances reach the same temperature
True
False
What is it called when 2 substances reach the same temperature?
Conduction
Convection
Equilibrium
Radiation
Which of the following is an example of conduction?
Holding a hot cup of coffee
Warming your hands by the fire
Moving wind or ocean currents
Which of the following is an example of Convection?
A metal spoon in a hot cup of soup
The heat given off of a light bulb
Heat rising from a chimney
Which of the following is an example of radiation?
Ice melting in your hands
Roasting a marshmallow
Hot water rising then cooling and sinking
What is specific heat?
the amount of energy needed to raise the temp of 1 g of a substance by 1 deg C
the amount of energy needed for an object to reach its boiling point
the amount of energy needed for an object to reach its melting point
Identify which substance is harder to change the temperature:
Water
Diamond
Aluminum
Which substance requires more energy to cool.
Aluminum
Water
Concrete
Phase changes are not reversible.
true
false
Matter an go through all phase changes
true
false
In melting a substance is a substance is ____________ energy.
gaining
losing
In freezing, a substance is _______________ energy.
gaining
losing
____________ is when a liquid or solid changes into a gas. This happens at the surface of a liquid.
Vaporization
Sublimation
Condensation
Evaporation
During boiling, molecules lose all attractive forces before vaporization
True
False
