WorksheetsHeat and Heat Transfer
Total questions: 45
Worksheet time: 1hrs 8mins
This type of heat transfer takes place with direct contact and at least one solid object. Example a burner on a stove heating the bottom of a pot.
convection
radiation
conduction
Heat is transferred from the sun to Earth by which kind of heat transfer
convection
radiation
conduction
The air is warmer near the ceiling of a room. The warm air rises because of ____________.
convection
radiation
conduction
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
convection
radiation
conduction
You hold a solid chocolate bar in your hand, which then starts to warm up and soften. This happens due to what?
convection
radiation
conduction
The kind of heat transfer that travels through space in electromagnetic waves is
convection
radiation
conduction
In heat transfer, heat always flows from the _________ substance to the ____________ substance.
hotter to colder
colder to hotter
In which direction will the heat flow while a person holds a cup of hot tea. (The cup is hotter than the person's hand.)
from hand to cup
from cup to hand
no heat will be transferred
What type of heat transfer is happening here?
The pot sitting on the burner is conduction and the water in the pot is convection
The pot sitting on the burner is convection and the water in the pot is conduction
The pot sitting on the burner is radiation and the water in the pot is convection
The pot sitting on the burner is conduction and the water in the pot is radiation
This sunbather is getting a warm because ______
The heat from the sun is travelling through electromagnetic waves and conduction is occurring.
The heat from the sun is travelling through electromagnetic waves and radiation is occurring.
The heat from the sun is travelling through electromagnetic waves and convection is occurring.
the sun is transferring energy
The earth receives heat energy from the sun by _______________, which is the transfer of energy as electromagnetic waves.
Near the ceiling of a room the air is warmer. The warm air rises because of
conduction
convection
radiation
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
Hotter to colder
Colder to hotter
Hotter to hotter
Colder to colder
When you use a microwave, what is the main way that heat is transferred?
Convection
Conduction
Radiation
insulation.
An iron is placed on your clothes to smooth out the wrinkles. The iron transfers heat to your clothes through
conduction
convection
radiation
You get sunburned due to __________ from the sun.
conduction
convection
radiation
Near the ceiling of a room the air is warmer. The warm air rises because of
conduction
convection
radiation
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
radiation
conduction
convection
insulation
Energy transfer during which hot fluid rises and cold fluid sinks, creating a cycle, is called...
Heat
Convection
Radiation
Conduction
Which Earth's surface heats quicker, sand or water?
Water
Sand
N/A
N/A
Carole owns a two story house with a heating and cooling unit on each floor. In the winter she mostly uses the downstairs unit to heat the house because the volume of warm air __________ and __________, warming the whole house through __________.
expands and rises, convection
expands and sinks, conduction
contracts and rises, conversion
contracts and sinks, conduction
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
warmer, cooler
cooler, warmer
What does heat do when convection currents are moving?
Sinks
Rises
Stays in place
Which of the following is the best example of radiation?
The ocean breeze
The sun heating your body on the beach
Eating ice cream
A wave knocking over a sandcastle
After cooking an egg in boiling water, you cool the egg by putting it into a bowl of cold water. Which of the following explains the egg’s cooling process?
Hot water moves from the egg to the water.
Cold water moves into the egg.
Energy is transferred from the water to the egg.
Energy is transferred from the egg to the water.
A material that does not conduct heat well is called a(n) __________.
conductor (ex. spoon, metals)
insulator (ex. wood, wool, straw, paper)
If you put a metal spoon and a wooden spoon into a pot of boiling water, one will become too hot to touch. Why?
Metals conduct heat better than wood.
Wood conducts heat better than metals.
Metals pull in heat because heat is attracted to metals.
Wood isn’t as strong as metals.
You take a cold can of soda off of a counter top. The counter top underneath the can feels colder than the rest of the counter. Which of the following explains this occurrence?
The cold has been transferred from the soda to the counter.
There is no heat energy left in the counter beneath the can.
Some heat has been transferred from the counter to the soda.
The heat beneath the can moves away into other parts of the countertop.
What is calorimetry?
The process of measuring the amount of heat that is absorbed or released in a chemical reaction
The process of measuring the amount of time it takes for certain reactions to take place
What does Q stand for?
Heat or Energy
Mass
specific heat or specific heat capacity
Temperature
What unit is Heat/Energy usually in?
oC
Joules
J/goC
What does m stand for and what is it's unit?
temperature change, oC
Heat, Joules
mass, grams
specific heat, J/goC
We will use lowercase "c" instead of CS, what does c stand for?
Temperature in Celcius
specific heat capacity
heat released or absorbed
The negative sign means that energy is released. Does this mean that it's endothermic or exothermic?
endothermic
exothermic
What is the change in temperature?
90 degrees Celsius
-90 degrees Celsius
9612 J
120 g
What variable is she solving for?
m
Q
c
How is she going to get the c (specific heat) by itself?
Use this formula, q= m x c x Δ T
Use this formula, c= q/m x Δ T
Use this formula, m= q/c x Δ T
Use this formula, c Δ T= q/ m x c
What is your final answer?
0.89 J/g°\degree°C
1.12 J/g°\degree°C
