Font size
WorksheetsThermal Energy
Total questions: 38
Worksheet time: 19mins
Thermal energy is the _____ energy (kinetic and potential) of all the atoms in an object.
average
total
minimum
maximum
Temperature is the _____ kinetic energy (motion) of all the atoms in an object.
average
total
maximum
minimum
___ is the flow of thermal energy from a warmer area to a cooler area.
heat
temperature
thermal expansion
kinetic energy
___ is the type of heat transfer where heat moves by direct CONTACT - meaning TOUCHING.
conduction
convection
insulation
radiation
_____ is the type of heat transfer where heat moves by the flow of circular currents.
conduction
convection
insulation
radiation
_____ is the type of heat transfer where heat moves by WAVES of "light."
conduction
convection
insulation
radiation
Conduction works BEST in _____.
gases
liquids
plasma
solids
(Choose two answers!) Convection only works in ___.
gases
liquids
plasma
solids
_____ is the only type of heat transfer that works through EMPTY SPACE.
conduction
convection
insulation
radiation
In conduction, _____ moves heat.
collisions between atoms
circular currents
waves
In radiation, _____ move heat.
waves
circular currents
collisions
In convection, _____ move heat.
circular currents
collisions
waves
In convection, warmer parts of the fluid ___ because they are slightly less dense (~lighter).
sink
rise
falls
does not move
In convection, cooler parts of the fluid ___ because they are slightly more dense (~heavier).
rise
float
sink
does not move
(Choose all correct answers.) As atoms are heated, they move _____.
faster
slower
closer together
farther apart
(Choose all correct answers.) As atoms are cooled, they move _____.
faster
slower
farther apart
closer together
Which type of material is the best thermal conductor?
metal
wood
plastic
air
(Choose all correct answers!) Which materials are examples of good thermal insulators?
wood
air
iron
plastic
Name the type of heat transfer that makes it possible for the Sun to heat Earth.
conduction
convection
radiation
the Sun does NOT heat the Earth
Name the type of heat transfer shown at #1.
conduction
convection
radiation
insulation
Name the type of heat transfer shown at #2.nduction
conduction
convection
radiation
insulation
Name the type of heat transfer shown at #3.
conduction
convection
radiation
insulation
Warm soda is poured into a glass with ice and the soda becomes colder. Which type of heat transfer mostly occurred?
conduction
convection
radiation
insulation
The Sun heats the sand on a beach. Which type of heat transfer mostly occurred?
conduction
convection
radiation
insulation
A thermal ___ is a substance that allows heat to move through it easily.
conductor
insulator
convector
radiator
A thermal ___ is a substance that does NOT allow heat to move through it easily.
conductor
insulator
convector
radiator
Thermal energy is a FORM of _____ energy.
potential
kinetic
nuclear
atomic
Which type of heat transfer is mostly occurs between your feet and hot pavement?
conduction
convection
insulation
radiation
Which type of heat transfer is mostly happening inside a pot of water sitting over a flame?
conduction
convection
insulation
radiation
Which type of heat transfer mostly happens as a shirt is ironed?
conduction
convection
insulation
radiation
Which type of heat transfer is mostly happening when you hold ice in your hands?
conduction
convection
insulation
radiation
Which type of heat transfer mostly happens in the liquid inside a lava lamp?
conduction
convection
insulation
radiation
Thermal ___ is when an object gets slightly smaller as it cools and its atoms get closer together.
expansion
contraction
equilibrium
conductivity
Thermal ___ is when an object gets slightly bigger when it is heated and it atoms move farther apart.
expansion
contraction
equilibrium
conductivity
In radiation, light is ___ when it bounces off an object - the object stays cools.
reflected
absorbed
emitted
transmitted
In radiation, light is ___ when it is taken in by the object and changed to heat.
reflected
absorbed
emitted
transmitted
Darker colors (like black) mostly ___ radiation.
reflect
absorb
emit
transmit
Lighter colors (like white) mostly ___ radiation.
reflect
absorb
emit
transmit
