MS PS3-4 Energy Transfer

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion. The faster an object moves, the more kinetic energy it has.

Front

How does temperature affect molecular motion?

Back

As temperature increases, molecular motion increases. This means that particles move faster at higher temperatures.

Front

In which direction does thermal energy transfer?

Back

Thermal energy transfers from areas of higher temperature to areas of lower temperature.

Front

What happens to thermal energy when hot iron is placed in cold water?

Back

Thermal energy transfers from the hot iron to the cold water.

Front

Why do different materials heat up at different rates?

Back

Different materials have different specific heat capacities, which determine how quickly they can absorb heat.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state reached when two objects in contact no longer transfer thermal energy to each other, meaning they are at the same temperature.

Front

What is the relationship between temperature and kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance; higher temperature means higher average kinetic energy.

Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

Front

What is convection?

Back

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

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as heat from the sun.