Review Check 4- Heat Transfer Question Preview (ID: 34932)
Heat Transfer Review Check.
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When does the thermal transfer of energy occur?
a) when a cooler object or substance comes into contact with another cooler object or substance
b) When a warmer object or substance comes into contact with a cooler object or substance
c) When two objects or substances have the same temperature
d) When cold air transfer out of an object allowing heat to come in
What happens to the atoms in a material when heat is transferred in the material?
a) They are destroyed
b) They create more atoms
c) They collide
d) They continue to vibrate at the same rate as before the heat was transferred
What is the difference between conduction and convection?
a) Conduction is the transfer of cold air and the transfer of warm air
b) Conduction is the transfer of warm air and convection is the transfer of cold air
c) Conduction is transfer of heat through fluids, and convection is transfer of heat through objects touching
d) Conduction is transfer of heat through objects touching, and convection is transfer of heat through fluids
What is the difference between electromagnetic energy and electrical energy?
a) Electromagnetic energy is energy from light or heat while electrical energy is energy connected to a circuit.
b) Electromagnetic energy is energy connected to a circuit while electrical energy is energy from light or heat
c) Electromagnetic energy comes from the sun while electrical energy comes from the moon.
d) Electromagnetic energy comes from the moon, while electrical energy comes from the sun
Which are the four possible outcomes that result from light interacting with matter?
a) destruction, creation, absolute zero, darkness
b) Absorption, refraction, transmission, scattering
c) absorption, refraction, destruction, creation
d) absolute zero, darkness, transmission, scattering
Which is not a factor that determines how much the temperature of an object increases when struck by electromagnetic waves?
a) how intense the light is
b) how long it shines on the object
c) how much cold energy is stored in the object
d) how much of it is absorbed
What happens to some of the thermal energy that exists in materials?
a) it is transformed into light energy and radiated back into the environment by electromagnetic waves
b) it is destroyed
c) it creates more light energy which is then radiated back into the environment by electromagnetic waves
d) It is replaced by the transfer of cold air into the object
When can electromagnetic energy be transformed back into thermal energy?
a) When cold air is transferred into the substance thus pushing the electromagnetic energy out of the object or substance
b) Only when the object or substance is connected to a circuit
c) Only when the object or substance reaches absolute zero
d) When the electromagnetic waves strike another material
Why are metals like aluminum, steel, and copper most often used in making pots and pans that are useful for cooking?
a) They are excellent conductors of heat.
b) They are excellent insulators of heat
c) They have mass and take up space
d) They are excellent radiators of heat
Why are the handles of pots and pans usually made of materials such as plastic, ceramic or rubber?
a) They are excellent conductors of heat
b) They are excellent insulators of heat
c) They have mass and take up space
d) They are excellent radiators of heat
What is the difference between an insulator and a conductor?
a) An insulator allows the flow of heat, while a conductor only allows the flow of cold energy
b) An insulator allows heat to flow while a conductor prevents heat from flowing.
c) An insulator prevents the flow of heat while a conductor allows for the flow of heat
d) An insulator only allows the flow of cold energy, while a conductor allows the flow of heat
How do expansion joint strips support the structure of bridges?
a) They allow for the transfer of heat in cold weather and the transfer of cold energy in warm weather.
b) They allow the bridge to conduct electricity easily in both hot and cold weather.
c) They allow for the bridges to contract in hot weather and expand in cold weather
d) They allow for the bridges to expand in hot weather and contract in cold weather
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