7.1 Heat TransferRadiationConduction

Convection

7.1 Heat TransferHeat is a form of..?.energy

7.1 Heat TransferWhen something has more energy, it moves.?faster

7.1 Heat TransferAs it moves faster, it begins to spread?apart

7.1 Heat TransferAs it spreads apart, it becomes less..?.dense

7.1 Heat TransferWhat are the three types of heat transfer?RadiationConductionConvection

7.1 Heat TransferHow does Earth receive most of its radiation?As electromagnetic waves from the sun.

7.1 Heat TransferHow is heat transferred by conduction?Direct contact through a material (two objects touching)

7.1 Heat TransferHow is heat transferred by convection?By the circulation of a liquid or gas.

7.1 Heat TransferIf we put aluminum foil over a jar of hot water with red food coloring and a jar of cold water with blue food coloring at the bottom of a large container of water, what would happen when we take the foil off?The red, warm water goes up and spreads out because it is less dense.The blue, cold water stays at the bottom or doesnt even leave the jar.

7.1 Heat TransferWhat would happen if we left it overnight?It would turn purple because convection currents moved through the water, transferring the heat until all the water was the same temperature.

7.9 AtmosphereIf something is more dense, can it give more or less pressure?More Dense = More Pressure

7.1 Heat TransferIf something is less dense, then it has less?pressure

7.9 AtmosphereWhy does air pressure decreases as altitude increases?Because there is less air above you.

The Earth receives heat and light energy that travels from the Sun. When you are at the beach you can feel the warmth from the sun. Which of the following is the correct classification for this energy?

A. radiationB. nuclearC. kineticD. electrical

The Earth receives heat and light energy that travels from the Sun. When you are at the beach you can feel the warmth from the sun. Which of the following is the correct classification for this energy?

A. radiationB. nuclearC. kineticD. electrical

What type of heat transfer takes place in a gas?

A. ConvectionB. Conduction C. RadiationD. Global warming

What type of heat transfer takes place in a gas?

A. ConvectionB. Conduction touchC. RadiationsunD. Global warming not a type of heat transfer

What would happen if you added heatto an ice cube?

It would melt into liquid water.

What would happen if you added heatto liquid water?

It would boil and eventually evaporate into water vapor (gas)

An ice cube is placed inside a metal pot and placed on a stove. After a period of time, the cube of ice melts into liquid water and then begins to evaporate into water vapor. Which of the following correctly describes the changes in the states of matter? A. Heat is added to change from liquid to gas, and then gas to solid.B. Heat is taken away to change from solid to liquid, and then liquid to gas.C. Heat is added to change from solid to liquid, and then liquid to gas.D. Heat is taken away to change from liquid to gas, and then gas to solid.

An ice cube is placed inside a metal pot and placed on a stove. After a period of time, the cube of ice melts into liquid water and then begins to evaporate into water vapor. Which of the following correctly describes the changes in the states of matter? A. Heat is added to change from liquid to gas, and then gas to solid.B. Heat is taken away to change from solid to liquid, and then liquid to gas.C. Heat is added to change from solid to liquid, and then liquid to gas.D. Heat is taken away to change from liquid to gas, and then gas to solid.

The Suns Influence and Temperature Differences (Wind)Which heats faster? First gases

Then solids

Finally liquids

EnergyThe ability to cause change.Measured in units called joules.

Kinetic EnergyThe energy of motion.All moving objects have kinetic energy.

Potential EnergyThe stored energy that an object has because of its position condition, or chemical composition.

Mechanical EnergyThe Kinetic energy plus the potential energy due to position.

Law of Conservation of EnergyEnergy can be neither created nor destroyed. It can only be transformed.

A ball is dropped from height of 1m. The ball bounces back to height of 0.8m. What happened to the energy that seems to have been lost in the system? A. The lost energy was destroyed. B. The lost energy was destroyed or converted into thermal energy. C. The lost energy was converted into sound energy.D. The lost energy was converted into sound energy and thermal energy.

A ball is dropped from height of 1m. The ball bounces back to height of 0.8m. What happened to the energy that seems to have been lost in the system? (11.1)A. The lost energy was destroyed. B. The lost energy was destroyed or converted into thermal energy. C. The lost energy was converted into sound energy.D. The lost energy was converted into sound energy and thermal energy. *Remember, Law of Conservation of Energy and all energy transfers make heat.

The kinetic energy of an object depends on the objects mass and speed. As the objects mass and speed increases, its kinetic energy also increases. Which of the following has the most kinetic energy?

A. a trucked parked in a lot B. a jet airplane flying on the air C. a kitten running in a room D. a car driving on a highway

The kinetic energy of an object depends on the objects mass and speed. As the objects mass and speed increases, its kinetic energy also increases. Which of the following has the most kinetic energy? (11.1)

A. a trucked parked in a lot (large, but not moving)B. a jet airplane flying on the air C. a kitten running in a room (moving, too small)D. a car driving on a highway (moving, jet bigger)

When a skateboarder reaches the top of a half-pipe ramp, what type of energy is at its maximum?

A. Mechanical energyB. Kinetic energyC. Potential energyD. Chemical energy

When a skateboarder reaches the top of a half-pipe ramp, what type of energy is at its maximum? (11.1)

A. Mechanical energyB. Kinetic energyC. Potential energyD. Chemical energy