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Thermal Energy

Test Review

Thermal energy is the transfer? heat moving from a warmer object to a cooler object
Thermal energy transfer can happen in one of three ways; conduction, convection, and radiation .
An insulator is a ? poor conductor of energy
In conduction what happens? heat is transferred from one particle of matter to another in an object without the movement of the object.
So we can say that in conduction we always have contact, or material touching each other.
An example of conduction is a snowball in a hand because the heat of the hand is making the snowball melt.
Metals are excellent conductors of heat
non-metals are not conductors of heat
In convection, heat is transferred through the movement of currents
These currents can be fluids, such as Water
These currents can be gases , such as Air
Convection currents always move in a what kind of pattern? Circular
What are ways to conserve energy? b. Carpooling (riding with someone to work) c. Riding a bus or train (public transportation) d. Making more energy efficient vehicles
Which energy resources are mostly likely to have a negative impact or effect on air quality? any that produce pollution when burned: coal for example_
What are some factors to consider when deciding to use solar or wind power as a renewable energy? _you need a backup system when there are cloudy days or there isn’t any wind for the turbines
What is a major disadvantage to using nuclear power to generate electricity? requires expensive machinery to produce power, can be dangerous
What are the advantages to using fossil fuels, which is a non-renewable energy resource, to generate electrical power relatively easy and inexpensive to mine and transport
An ice cube is dropped in a glass of water at room temperature. The temperatures of the glass of water will Increase
while the temperature of the ice will Decrease as the glass of water will increase.
The tools necessary to conduct an experiment in which you are measuring the rate of thermal energy transfer in several liquids include; a beaker, timer, hot plate, and a _ thermometer
The transfer of thermal energy by electromagnetic waves is called radiation
Hot air pouring from a heat vent is an example of heat transfer by convection
Cooking eggs in a skillet is an example of thermal heat transfer by conduction
When items need to be kept the same temperature in order to prevent the loss of heat, an insulator
In radiation, thermal energy is transferred by electromagnetic Waves
Radiation does not require ____________________ to transfer thermal energy. Matter
Created by: spotsville2