Heat and Temp. Heat Transfer Energy Types Conversions And more Misc. Eleanor M. Savko Heat and Temp. Heat Transfer Energy Types 12/12/2017 Conversions And more Misc. 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt 10 pt 10 pt 10 pt 10 pt 15 pt 15 pt 15 pt 15 pt 15 pt 20 pt 20 pt 20 pt 20 pt 20 pt 25 pt 25 pt 25 pt 25 pt 25 pt

What is the lowest possible Eleanor M. Savko 12/12/2017 What is the lowest possible Temperature?

Eleanor M. Savko 12/12/2017 0 Kelvin

What is the boiling point of water in Kelvin and Fahrenheit? Eleanor M. Savko 12/12/2017 What is the boiling point of water in Kelvin and Fahrenheit?

Eleanor M. Savko 12/12/2017 373 K and 212°F

Which state of matter has the highest average kinetic energy? Eleanor M. Savko 12/12/2017 Which state of matter has the highest average kinetic energy?

Eleanor M. Savko 12/12/2017 Gas

What is true of two objects is heat is transferred between then? Eleanor M. Savko 12/12/2017 What is true of two objects is heat is transferred between then?

They have different temperatures Eleanor M. Savko 12/12/2017 They have different temperatures

How does thermal expansion work and what is an example? Eleanor M. Savko 12/12/2017 How does thermal expansion work and what is an example?

Eleanor M. Savko 12/12/2017 Thermal expansion is the increase in volume of a substance because of an increase in temperature. In other words, higher temperatures mean particles are moving faster and spreading out, causing the increase in volume. An example would be the air in a hot air balloon.

The transfer of heat through direct contact is called.. Eleanor M. Savko 12/12/2017 The transfer of heat through direct contact is called..

Eleanor M. Savko 12/12/2017 conduction

Thermal energy transferred by moving molecules in a fluid is called… Eleanor M. Savko 12/12/2017 Thermal energy transferred by moving molecules in a fluid is called…

Eleanor M. Savko 12/12/2017 convection

Why do some metal frying pans have wooden handles? Eleanor M. Savko 12/12/2017 Why do some metal frying pans have wooden handles?

Eleanor M. Savko 12/12/2017 While metal is a conductor and passes thermal energy easily, wood is an insulator and does not conduct thermal energy easily.

Describe the two ways radiation can transfer thermal energy. Eleanor M. Savko 12/12/2017 Describe the two ways radiation can transfer thermal energy.

Eleanor M. Savko 12/12/2017 It can transfer energy between particles of matter or can transfer energy across empty space

Explain how heat is transferred when liquid water becomes ice. Eleanor M. Savko 12/12/2017 Explain how heat is transferred when liquid water becomes ice.

Eleanor M. Savko 12/12/2017 Thermal energy is transferred from the warmer water to the colder air surrounding the water and the water’s molecules slow down and become more tightly held together.

What is the unit of measure for energy? Eleanor M. Savko 12/12/2017 What is the unit of measure for energy?

Eleanor M. Savko 12/12/2017 Joules

What does the law of conservation of energy state? Eleanor M. Savko 12/12/2017 What does the law of conservation of energy state?

Eleanor M. Savko 12/12/2017 That no energy is lost when one form of energy is converted into another.

Eleanor M. Savko 12/12/2017 Describe two situations that could cause a decrease in the kinetic energy of an object

A decrease in mass and a decrease in velocity Eleanor M. Savko 12/12/2017 A decrease in mass and a decrease in velocity

Energy stored in the core/nucleus of an atom is called Eleanor M. Savko 12/12/2017 Energy stored in the core/nucleus of an atom is called

Eleanor M. Savko 12/12/2017 Nuclear energy

Eleanor M. Savko 12/12/2017 A boy throws a ball 35 m into the air. At what point are kinetic and potential energy equal?

Eleanor M. Savko 12/12/2017 17.5 m

Eleanor M. Savko 12/12/2017 Rubbing your hands together to make them warm uses friction to convert what type of energy to what type of energy?

Mechanical energy into thermal energy Eleanor M. Savko 12/12/2017 Mechanical energy into thermal energy

Eleanor M. Savko 12/12/2017 What is the transformation of energy that occurs when bread is toasted?

Eleanor M. Savko 12/12/2017 Electrical to thermal

Eleanor M. Savko 12/12/2017 A tree grows taller every year. This is an example of what type of energy transformation?

Electromagnetic to Chemical (sunlight causes photosynthesis) Eleanor M. Savko 12/12/2017 Electromagnetic to Chemical (sunlight causes photosynthesis)

Eleanor M. Savko 12/12/2017 A solar cell that provides electricity for a house involves what energy transformation?

Electromagnetic to electricity Eleanor M. Savko 12/12/2017 Electromagnetic to electricity

Eleanor M. Savko 12/12/2017 Explain all of the energy transformations from a coal-burning power plan to your home

Coal is burned to heat water: chemical to thermal Eleanor M. Savko 12/12/2017 Coal is burned to heat water: chemical to thermal The steam powers a turbine: thermal to mechanical The turbine spins creating electricity: mechanical to electrical The electrical energy is then distributed to a community through electrical wires

Eleanor M. Savko 12/12/2017 What is the KE of a ball that has a mass of 5 kg and a velocity of 38 m/s?

Eleanor M. Savko 12/12/2017 3,610 J

Eleanor M. Savko 12/12/2017 Two substances have the same temperature, what does this mean about their kinetic energy?

They have the same kinetic energy. Eleanor M. Savko 12/12/2017 They have the same kinetic energy.

Eleanor M. Savko 12/12/2017 If the ball has 150 J of kinetic energy at point C and the total mechanical energy is 290 J, how much potential energy does the ball have at point C?

Eleanor M. Savko 12/12/2017 140 J = PE

Eleanor M. Savko 12/12/2017 What is the PE of a diver who is 40 kg at the top of a 10 m diving board?

Eleanor M. Savko 12/12/2017 40 (9.8) (10)= 3,920 J

Eleanor M. Savko 12/12/2017 Sam just landed on a new planet and is trying to figure out how strong the pull of gravity is. He sets up a 2 m pendulum with a period of 2.5 seconds.

Eleanor M. Savko 12/12/2017 g= 12.8 m/s/s