WorksheetsHeat and temperature
Total questions: 37
Worksheet time: 27mins
What is the kinetic theory of matter?
An Infrared thermometer measures temperature by?
(a)
which one has the same division increments as degrees celsius?
There is twice as much molecular kinetic energy in 2 liters of boiling water as in 1 liter of boiling water. Which will be the same for both?
Temperature.
Thermal energy
Both temperature and thermal energy
none of the above
How does heat transfer when you hold an ice cube in your hand?
from the cold ice cube to your warm hand
the cold ice cube makes your hand cold
from your warm hand to the cold ice cube
very carefully
The most common temperature scale used in Australia, in which water freezes at 0 degrees and boils at 100 degrees is called the __________________________ scale.
Celsius
Pound
Kelvin
Fahrenheit
When energy moves from a warmer object to a cooler object it is called the transfer of:
heat
temperature
motion
momentum
Heat always moves from ____________ objects to ______________ objects.
cooler, warmer
warmer, cooler
faster, slower
slower, faster
When two objects are at the same temperature they are in thermal equilibrium
True
False
What is the definition of CONVECTION
When heat transfers through waves.
When heat transfers from objects that are touching.
warm fluid rises; cool fluid sinks
Heat traveling from the sun
Which of the following containers of sand has atoms/molecules with the greatest average kinetic energy?
1 kg at 20oC
2 kg at 20oC
4 kg at 20oC
all have the same average kinetic energy
When thermal energy is added to a substance, the substance's particles move:
More rapidly at an increased distance from each other
More rapidly with less distance between each other
More slowly with a greater distance between each other
More slowly with less distance between each other
An object in which molecules are moving faster than another object
has a higher temperature
has a lower temperature
both are in thermal equilibrium
both have the same internal temperature
When would an object left in a room temperature room stop transferring heat?
When it has reached the same temperature as the room temperature air
When it has lost all of its thermal energy
When it has gained all of the air's thermal energy
When it has gained or lost all of its coldness to the air
What is the definition of CONDUCTION?
When heat energy is absorbed or emitted as electromagnetic waves.
when heat causes a hot liquid or gas to expand, become less dense and rise, or becomes more dense, and sink.
When heat transfers from a hotter object to a cooler object through contact
When heat transfers through the heater or AC in your house.
An object's internal energy depends on
The average kinetic energy of all the particles
The total kinetic energy of all the particles
The total kinetic and potential energy of all the particles
The difference between the kinetic and potential energy of the particles
The rising of warm damp air into the upper atmosphere to form clouds is an example of
Conductive heat transfer
Convective heat transfer
Radiative heat transfer
Thermal equilibrium
When you burn your feet on hot concrete in the summer, that's an example of
Conductive heat transfer
Convective heat transfer
Radiative heat transfer
Thermal equilibrium
If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________
one reaches a temperature of zero
they both have an equal temperature
one runs out of energy
Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?
The molecules are moving faster in Diagram A
The molecules are moving slower in Diagram A
The molecules are moving at the same rate in both diagrams
As the thermal energy of a solid or liquid increases, the potential energy (force of attraction) between the atoms/molecules ________________
Heat is defined as
the transfer of thermal energy from one object to another due to temperature difference
the temperature of a solid, liquid, or gas
The kinetic energy of a solid, liquid, or gas.
Heat transfer only occurs in one direction
True or False?
True
False
Which state of matter has particles with the greatest kinetic energy?
Solid
Liquid
Gas
Thermal energy is measured in
°Celsius
°Fahrenheit
Joules
°CJ
