Heat Transfer 1
What type of heat transfer is when hot fluids rise and cool fluids sink?
Convection
Heat moves from the _____ object to the ______ object.
hotter ; cooler
What type of heat transfer is this?
Accidentally burning your hand on a hot metal pan.
Conduction
What is Heat Transfer?
Heat transfer is when an object transfers its energy from one source to another.
Describe an example of radiation.
Answers will vary. The warmth we feel from a fire.
The transfer of heat energy from the sun to Earth.
Radiation
What method of heat transfer is this?
A metal spoon sitting in a hot pot.
Conduction (energy transfer via contact)
Radiation is when _____________ waves travel through space, without direct contact.
electromagnetic
What has more heat energy? A match or a giant ice sculpture.
Giant ice sculpture.
Name all modes of heat transfer.
Conduction, convection and radiation
What type of heat transfer occurs through direct contact when objects are touching?
Conduction
What is an insulator?
An insulator stops energy from either entering or leaving an object, no matter how different the object's energy levels are.
What type of radiation is man-made and travels through objects like T.V.s and Radios?
Radio waves
What type of heat transfer is feeling the warmth from a campfire.
Radiation
What method of heat transfer is shown here? A hot air balloon.
Convection heating (hot fluid rises, cool fluid sinks)
What method of energy transfer is this?
(Description: Heat flows from the hotter cup into the cooler hands. )
Conduction
Give one specific example of convection.
Answers will vary. The convection currents in the ocean and atmosphere.
Explain why it’s much colder at the bottom of a pool than at the top.
Convection makes the cool water sink and the hot water rise.
What is a Conductor?
Is an object that helps energy transfer from one location to another. This transfer usually is at an increased speed.
What is thermal equilibrium?
When two objects are the same temperature.
Which type of heat transfer is responsible for winds and precipitation, playing an important role in Earth's weather patterns.
Convection
How long does Heat Transfer take place?
Until both objects have the same amount of energy.
Describe an example of conduction.
Answers will vary and must involve direct contact.
What is the type of radiation that makes human skin get sunburned?
Ultra violet / UV waves
Popcorn can be popped three ways, or using three methods. What are they?
Conduction - Convection - Radiation