Conduction, Convection, & Radiation

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

Front

What is convection?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as light or heat, without the need for a medium.

Front

How does conduction occur in metals?

Back

In metals, conduction occurs as free electrons move and transfer kinetic energy to neighboring atoms.

Front

What is an example of convection in everyday life?

Back

An example of convection is the heating of water in a pot; hot water rises while cooler water sinks, creating a circulation.

Front

What is the role of thermal conductivity?

Back

Thermal conductivity is a measure of a material's ability to conduct heat; higher values indicate better heat conduction.

Front

How does radiation differ from conduction and convection?

Back

Radiation does not require a medium to transfer heat, while conduction and convection do.

Front

What is the formula for calculating distance traveled?

Back

Distance = Speed x Time.

Front

If an object travels at a constant speed of 10 m/s for 5 seconds, how far does it travel?

Back

Distance = 10 m/s x 5 s = 50 m.

Front

What does a flat line on a motion graph indicate?

Back

A flat line indicates that the object is at rest and not moving.