Heat Transfer

Front

What is conduction in heat transfer?

Back

Conduction is the process of heat transfer through direct contact between materials, where heat moves from the hotter object to the cooler one.

Tags

NGSS.MS-PS3-3

Front

What is convection in heat transfer?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer, less dense fluid rises and cooler, denser fluid sinks.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is radiation in heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation, which can occur in a vacuum.

Front

How does density affect the behavior of substances in fluids?

Back

Substances with lower density than the fluid will float, while those with higher density will sink.

Front

What is the relationship between temperature and density in fluids?

Back

Generally, as temperature increases, the density of a fluid decreases, causing it to rise.

Front

What are the three main types of heat transfer?

Back

The three main types of heat transfer are conduction, convection, and radiation.

Tags

NGSS.MS-PS3-3

Front

What is an example of conduction in everyday life?

Back

Ironing a shirt is an example of conduction, where heat is transferred from the iron to the fabric.

Front

What happens to air density as it is heated?

Back

Warm air becomes less dense than cold air and rises, creating convection currents.

Front

Why do some objects float on water?

Back

Objects float on water if they are less dense than water.

Front

What is the principle behind convection currents?

Back

Convection currents are driven by the differences in temperature and density within a fluid, causing warmer fluid to rise and cooler fluid to sink.

Tags

NGSS.MS-ESS2-6