Table of Contents
What transfer of energy occurs when molecules bump into one another?
convection
Within the troposphere, heat is transferred mostly by convection. When the air near the ground is heated, the molecules have more energy and move faster. The molecules bump into one another and move farther apart, or become less dense. Cooler, denser air sinks, forcing the warmer, less dense air to rise.
What happens to molecules when energy is transferred in?
If we warm up a solution, we actually transfer energy into the molecules. This energy can be used as kinetic energy. Since the mass of the molecules doesn’t change in this process, the velocity must increase. Therefore, the molecules will move faster around.
What is energy transferred between objects called?
Heat is transferred between objects in 3 ways, conduction, convection, and radiation.
How is heat energy transferred through the movement of air?
Convection is the transfer of heat energy in a fluid. Air in the atmosphere acts as a fluid. The sun’s radiation strikes the ground, thus warming the rocks. As the rock’s temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air.
What occurs when molecules bump into one another?
A chemical reaction has taken place. The molecules that bump into one another in the first place are called the reacting molecules or reactants in a chemical reaction. The new molecules that are formed after the rearrangement are called the products.
When heat is transferred through air it is called?
Convection: Convection is the transfer of heat from a surface by means of a fluid such as air. Natural convection occurs as air is heated: it expands, rises, and is replaced by cooler air.
Is it true that energy from the sun is transferred to Earth through convection?
Energy from the Sun is transferred to Earth through convection. Radiation requires a heated liquid to transfer energy. Nearly all of the energy that Earth receives from the Sun is used in photosynthesis. In the atmosphere water vapor condenses to form clouds.