Science Flashcard

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Tags

NGSS.MS-ESS2-6

Front

Provide an example of convection in everyday life.

Back

An example of convection is when hot air rises and cold air sinks, such as in a room heated by a radiator.

Tags

NGSS.MS-ESS2-6

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, which is related to its temperature.

Tags

NGSS.MS-PS1-4

Front

What is the absolute zero temperature in Celsius?

Back

Absolute zero (0K) is equivalent to -273.15°C.

Tags

NGSS.MS-PS3-4

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Tags

NGSS.MS-PS3-3

Front

What is a convection current?

Back

A convection current is a continuous cycle of rising hot air and sinking cold air, creating a flow that transfers heat.

Tags

NGSS.MS-ESS2-6

Front

How does temperature affect thermal energy?

Back

As temperature increases, the thermal energy of an object also increases because the particles move faster.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the difference between conduction and convection?

Back

Conduction is heat transfer through direct contact, while convection is heat transfer through the movement of fluids.

Front

What role does density play in convection?

Back

Density differences in fluids cause warmer, less dense fluid to rise and cooler, denser fluid to sink, creating convection currents.

Front

What is the significance of 0K in thermodynamics?

Back

0K, or absolute zero, is the theoretical point at which all molecular motion stops, representing the lowest possible temperature.

Tags

NGSS.HS-PS3-4