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25 questions
A thermal conductor allows energy to flow _____.
not at all
easily
over the Internet
A good _____ does NOT allow energy to flow easily.
conductor
metal
insulator
Energy is measured in J. What does J stand for?
Jewelry
Justice
Joules
The ocean is cold even in summer because water _____.
has high specific heat
has low specific heat
is insulated from sunlight
What are two properties that were tested in the lab experiments that affected thermal energy transfer?
M&Ms
type of material and mass of material
miles and machines
A foam picnic cooler keeps food cold on a hot day. What is this an example of?
a conductor
an insulator
thermal expansion
Wood and styrofoam are examples of _____.
conductors
insulators
cold objects
All of the following are conductors except _______.
metal spoon
wire
plastic spoon
Mrs. Tomooka stirred a hot drink in a styrofoam cup with a metal spoon. In what order did the thermal energy reach her hand?
cup-> hot drink-> hand
hand-> spoon-> hot drink
hot drink-> spoon-> hand
Mrs. Agliolo poured some coffee into a cup and stirred it with a metal spoon. She noticed the spoon was really warm. What is the best explanation for this?
The spoon is a conductor
The spoon is an insulator
The spoon reflects the heat
A material's ability to transfer heat by collisions between its particles is called _____.
heat
cold
thermal conductivity
A ___ is a device for measuring temperature.
conductor
insulator
thermometer
Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep the electricity from starting a fire?
Plastic is a good insulator.
Plastic can melt when heated.
Plastic conducts electricity.
Gloves help keep your hands warm in winter because:
They are conductors of heat.
They are fuzzy.
They are insulators.
What is a unit of temperature?
Celsius
Pounds
Pizza
An aluminum plate and a plastic plate have been in the freezer all night. When you remove them the next morning,
the plates have the same temperature.
the plastic plate has a higher temperature.
the plastic plate has a lower temperature.
A small pot would get hot faster than a large pot. (Both pots are made of the same material.)
True
False
The greater the mass of a substance, the more thermal energy is needed to change its temperature.
True
False
Different substances (copper, water, glass) have different specific heats.
True
False
Specific heat is the amount of thermal energy required to DECREASE the temperature of 1 kg of a material by 1 degree Celsius.
True
False
The specific heat of thermal conductors is HIGHER than the specific heat of thermal insulators.
True
False
In addition to the type of material and the mass of material, surface area, thickness and reflectivity and absorbency are factors in how thermal energy is transferred.
True
False
The color _____ REFLECTS all radiated light energy.
red
black
white
The color _____ ABSORBS all radiated light energy.
red
black
white
Mrs. Tomooka, Mrs. Agliolo and Mrs. Angulo are the BEST 6th grade teachers you have ever had. (You'd better get this one right!)
True
False
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