Thermal Heat

A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of

• Convection

• Conduction

• Radiation

A fireman feels a door and it is hot. Why does his hand feel hot?

• Convection

• Conduction

• Radiation

Tags

NGSS.MS-PS1-4

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder

• Colder to hotter

• Hotter to hotter

• Colder to colder

Hot coffee is stirred with a spoon, the spoon gets hot due to

• Convection

• Conduction

• Radiation

Tags

NGSS.MS-PS3-3

Specific Heat

• Materials that do not conduct heat well.

• A material that conducts heat well,

• The amount of energy required to raise the temperature of 1 kilogram of a material by 1 kelvin.

• The expansion of matter when it is heated.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the main difference between heat and temperature?

• Heat is a measure of the total energy of molecular motion in a substance, while temperature is a measure of the average energy of molecular motion in a substance.

• Heat is a measure of the average energy of molecular motion in a substance, while temperature is the total energy of molecular motion in a substance.

• Heat can only be transferred between objects of the same temperature, while temperature can vary between objects.

• Heat is always measured in Joules, while temperature is always measured in degrees Celsius or Fahrenheit.

Tags

NGSS.MS-PS3-4

• the heat needed to raise the temperature one degree

• the heat needed to keep the temperature the same

• the heat needed to not change the temperature

• the heat needed to lower the temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to

• Convection

• Conduction

• Radiation

Tags

NGSS.MS-PS1-4

Near the ceiling of a room the air is warmer. The warm air rises because of

• Convection

• Conduction

• Radiation

Tags

NGSS.MS-PS1-4

In a swimming pool, the water near the surface is slightly warmer. The warm water rises because of

• Convection

• Conduction

• Radiation