Convection
Just Random
Conduction
Radiation
Multiple Choice
100
Is convection the transfer of heat energy through the currents of fluids? True or False
True
100
What is conduction?
The transfer of heat energy through direct contact
100
Define Conduction:
Conduction refers to the transfer of energy through the movement of particles that are in contact with each other.Heat conduction (or thermal conduction) is the transfer of energy from a warmer substance to a colder one through direct contact, such as someone touching the handle of a hot metal skillet.
100
Define Radiation
The energy radiated or transmitted in the form of rays, waves, or particles. A stream of particles or electromagnetic waves that is emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay. Radiotherapy. The radial arrangement of anatomical or histological parts.
100
What type of enegry transfer would be used if you cooked a hot dog by boiling?
A. Radiation B. Convection C. Conduction
B. convection
200
What is density? And how does it relate to heat transfer?
How tightly packed material is. Density is involved in convection and causes fluids to rise and fall.
200
What is an insulator
Something that dosn't transfer heat well.
200
Give one example of Conduction
- After a car is turned on, the engine becomes hot. ...
- A radiator is a good example of conduction. ...
- You can warm your back muscles with a heating pad.
- Roasting wieners over a campfire is fun until the heat from the fire is conducted up the coat hanger to your hand.
200
Give one example of Radiation:
- ultraviolet light from the sun.
- heat from a stove burner.
- visible light from a candle.
- x-rays from an x-ray machine.
- alpha particles emitted from the radioactive decay of uranium.
- sound waves from your stereo.
- microwaves from a microwave oven.
200
Getting a sunburn is absorbing to much heat energy through _____? A. Radiation B. Convection C. Conduction
A.radiation
300
Name three examples of convection?
- Boiling water - The heat passes from the burner into the pot, heating the water at the bottom. ...
- Radiator - Puts warm air out at the top and draws in cooler air at the bottom.
- Steaming cup of hot tea - The steam is showing heat being transfered into the air.
300
Why does your desk feel warmer than the metal pole on your chair, even though they are the same temperature?
Because the metal pole absorbs the heat energy from your hand alot faster.
300
When boiling a pot of noodles, describe where conduction takes place.
The pot (metal) conducts the heat from the stove.
300
When baking, explain where radiation takes place.
The heat from the oven is transferred through radiation waves to heat and bake the delicious cookies.
300
Burning yourself on a grill is an example of what energy transfer? A. Radiation B. Convection C. Conduction
C.conduction
400
Describe Convection in your own words.
400
Explain how you cook a hotdog with conduction?
(various answers)
400
The pot (metal) conducts the heat from the stove.
A solid (conductor) typically with a metal.
400
True or False: The heat from an oven is transferred differently than heat from the sun.
False
400
The ocean tides are caused by what? A. Radiation B. Convection C. Conduction D. None of the above
D. (None of the above)the moons pull causes tides.
500
What are every day thing you use that involves convection?
Air Conditioning...etc
500
What does conduction look like?
(any example with contact)
500
True or false: Conduction produces heat when you rub your hands together
False, friction causes heat when you rub your hands together. Conduction is the transfer of heat between two objects.
500
True or false: Radiation needs a medium to take place.
False
500
Solar pannels use what type of energy? A. Radiation B. Convection C. Conduction
A.radiation.