WorksheetsChapter 5 Lesson 2 Thermal Energy Transfers
Total questions: 50
Worksheet time: 47mins
The transfer of theermal energy by electromagnetic waves is ___________.
conduction
radiation
convection
nuclear
Convection is the thermal energy transferred from one location to another in a fluid because of difference in density of warmer and cooler parts of the liquid.
True
False
Why do hot air ballons ride?
thermal conduction
thermal convection
thermal expansion
thermal radiation
THe pizza crust and pizza sauce have the same temperature. Why then does the pizza sauce burn your mouth, but the pizza crust does not?
thermal conduction
thermal radiation
specific heat is higher the sauce
sauce has less thermal energy
A pot holder is an example of ___________.
thermal insulator
thermal conductor
gloves
keeping your hands warm
When you fill a 5 gallon plastic gas can with gasoline and screw on the lid and let it sit outside in the warm sun, what happens to the plastic container?
thermal radiation
thermal conduction
thermal expansion
heat transfer
How can putting a hot liquid into a very cold glass cause the glass to break?
What happens to the volume of a gas when it is heated?
volume decreases
volume increases
volume doesn't change
How do bulb thermometers demonstrate thermal expansion in a liquid?
What can cause thermal expansion in sidewalks?
The heat from the sun
People walking on the concrete
control joints
existing cracks
What would happen on a hot day if seatbelts were made of metal instead of cloth?
The seatbelts would be very cold
The seatbelts would be very hot
Metal is a good thermal conductor
Metal is a poor thermal conductor
Which best explains how this roasting marshmallows happens?
Heat from the fire is conducted into the marshmallow.
Heat from the fire is radiated into the marshmallow.
The coolness of the marshmallow is conducted into the fire.
The coolness of the marshmallow is radiated into the fire.
What is the original source of the most of the energy that people use?
By radiation from the sun.
By convection from the sun.
By radiation from the Earth's core.
Conduction from Earth's core.
Which best describes heat transfer by radiation?
A slice of bacon frying in a pan.
A pot on a stove boiling water.
Cooking a hotdog in a microwave.
A hot air balloon.
When choosing materials to build a fireplace, why is brick a better choice than metal?
Brick is a conductor.
Brick is heat resistant.
Metal is a conductor.
Meat is heat resistant.
What enables fireman to enter buildings that are on fire and return from them safely?
Convection cells keep fire away.
The heat makes the building expand so there is no more room.
Fireman wear heat resistant suits.
They are really fast.
Why should space be left at the top of the plastic bottle when filling with water and then freeze?
Because water expands when frozen.
Because water contracts when frozen.
Because plastic contracts when frozen.
Because plastic expands when frozen.
Popcorn is made from corn kernels. What happens when kernels are heated in a microwave?
The kernels expand.
The kernels dissolve.
The kernels become hard and brittle.
The kernels stick together to form ball.
Which of the following best describes CONVECTION?
When heat is transferred through waves.
When heat is transferred through objects that are touching.
The movement of gas or liquid in which warmer parts move up and the colder parts moves down.
What kind of heat transfer is occurring when the sun warms the sand?
Conduction
Convection
Radiation
All of them
Which of the following is an example of convection?
Hair dryer is drying up your hair
When a car engine turns hot after being turned on.
A spoon placed in the cup filled with cold coffee.
Boiling spaghetti noodles in water.
What heat transfer happens when you put the pan in the open stove?
Conduction
Convection
Radiation
None
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
Conduction
Convection
Radiation
Heat transfers from an area of ________ temperature to an area of _______ temperature.
high to low
low to high
high to high
low to low
Walking on a warm sand with your bare feet shows this type of heat transfer.
conduction
convection
radiation
Ironing a shirt is an example of:
condensation
evaporation
conduction
convection
The ______ air rises and the cold air sinks in convection heat transfer.
warm
cold
same
very cold
You and your friends gathered around a campfire to keep warm. How heat is being transferred?
conduction
convection
radiation
This is the transfer of thermal energy through "space".
conduction
radiation
convection
spaceship
The transfer of energy through molecules in direct contact is ...
Heat
Conduction
Convection
Radiation
Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?
Thermal energy is transferred from the spoon to the water by conduction
Thermal energy is transferred from the water to the spoon by conduction.
Thermal energy in the water is transformed into kinetic energy in the spoon by convection.
Thermal energy in the spoon is transformed into kinetic energy in the water by convection.
True or False?
Heat and temperature are different.
True
False
As thermal energy increases, kinetic energy also...
Increases
Decreases
Remains the same
What tool is used to measure temperature?
a stove
a beaker
a thermometer
a glove
list the types of heat transfer
conduction,convection,radiation
thermometer,heat,kinetic energy
temperature,convection current, density
evaporation, condensation, precipitation
Thermal energy that is transferred through empty space
Convection
Conduction
Radiation
Temperature
Thermal energy transfer through the movement of currents in liquids and gases.
Conduction
Convection
Radiation
Temperature
The relationship between the temperature and the total energy of a system depend on all the following except
The color of matter
The amount of matter
The type of matter
The state of matter
A material that prevents the flow of heat
Conductor
Insulator
Metal
Plasma
A material that allows or helps the flow of heat.
Insulator
Salinity
Conductor
Plasma
When particles of matter are in direct contact, conduction of thermal energy occurs in which states of matter?
Solids, liquids, and gases.
Liquids and gases.
Gases.
Solids and liquids.
All metals are examples of good:
insulators of thermal energy
conductors of thermal energy
Holding a hot cup of cocoa is an example of which type of heat transfer?
convection
conduction
radiation
Which type of heat transfer is happening INSIDE the pot on the stove?
convection
conduction
radiation
Which type of heat transfer is happening where the pot is sitting on the red hot glowing metal rack?
conduction
convection
radiation
Which type of heat transfer is happening in the spaces outside of the pot but close to it?
conduction
convection
radiation
