0
When radiation occurs between two objects do the two objects need to be touching.?
Wiki User
∙ 6y ago
The answer to this question is no. Radiation can occur when objects are not touching
Tabitha Williams
Add your answer:
Earn +20 pts
Is heat transferred from a microwave to the food is a example of conduction?
No. It is an example of radiation. The heat is transferred by microwaves, which are a form of electromagnetic radiation. Conduction occurs when two objects of different temperatures are in contact or when different parts of an object have different temperatures.
Is the statement that radiation is the only form of heat transfer that is experienced on Earth true?
No. There are three different forms of heat transfer Radiation, Conduction and Convection. All three are experienced on Earth. Conduction occurs when heat is transferred between objects that are in direct contact with one another: some materials are better conductors than others. Convection is the up and down movement of gases and liquids caused by heat transfer. Radiation occurs when electromagnetic waves travel through space transferring heat to the object which it eventually hits.
The transfer of heat between two objects touching is called?
When a cold object and a hot object are in direct contact (touching) heat will be transferred through thermal conduction. Normally, heat transfer processes are categorized as thermal conduction, radiative transfer or convection. Heat transfer through thermal conduction is the direct transfer of kinetic energy from one molecule to the nearby molecules. Because temperature is directly proportional to kinetic energy, interactions between neighboring particles exchange energy and that exchange energy gradually works it way from the higher temperature regions to the lower temperature regions. The process of the temperature becoming the same is called thermal equilibration. Convective heat transfer occurs in fluids. If a gas, liquid, or other fluid, changes in fluid density change the buoyancy and will cause fluid to flow (a process called convection) and the heat contained in the warmer fluid is transferred to a new location by the physical movement of the fluid. Radiative transfer occurs when a hot object radiates electromagnetic energy. While the sun is an obvious source of electromagnetic energy, it is also generated in smaller amounts by any object. The hotter objects radiate more electromagnetic energy and the cooler objects absorb it. This radiative transfer is important but not as noticeable usually as the other two. It does occur between objects whether they are in direct contact or not, but is usually so small as not to be important of the objects are touching.
Elements whose atoms give off radiation are called?
Radioactive elements give off radiation. The emission of radiation occurs when an unstable atomic nucleus tries to become stable. Some examples of radioactive elements are radium, curium, nobelium, rubidium, and polonium.
How does melanin typically respond to ultraviolet radiation?
Melanin serves as a shield against UV exposure, which comes in the form of a tan that occurs when melanin pigments enlarge in response to UV radiation. By doing this, the skin helps to prevent sunburn damage, which can lead to cancerous melanoma.
What is the result of two objects with disimilar electrical charges touching?
An electrostatic discharge (ESD) occurs, to balance out the dissimilar electrical charges between the objects.
Does heat being transferred to radiation when things touch?
No heat transfer through objects touching is called conduction. Transfer by radiation occurs when heat moves in the form of electromagnetic waves such as light or infrared rays. The warmth you feel from sunlight is an example of radiation.
Does radiation occur mainly through liquids?
No, radiation occurs mainly between gases!
How radiation and convection is alike?
Conduction, Convection, and radiation are all ways that heat can be transferred between 2 objects. Conduction is transfer by direct contact like when you cook something on the stove. Convection occurs when heat is transferred by movement like in the Earth's mantle. Radiation occurs when waves are used to transfer heat like sunlight.
What 3 ways does the heat move?
Convection, flowing through a liquid or a gas, Conduction, a transfer that occurs between the contact between two objects of different temperatures, or Radiation, where heat is emitted from the surface of an object.
What occurs between any two objects?
Gravity
How thermal energy travel?
Thermal energy travels by conduction, convection, and radiation. Conduction occurs when two or more objects of different temperatures are touching each other. The heat flows from the warmer object to the cooler object, until the objects reach equal temperatures. Convection is the transfer of thermal energy through a moving liquid or gas. Radiation is the transfer of thermal energy though matter and space.
What type of force occurs between any two objects?
A gravitational force occurs between any two objcets.
What occurs between visible light and a small portion of electromagnetic energy?
UV radiation and infrared radiation bb
What category of force occurs from interactions between objects?
Gravitational force
What is the name of the attraction that occurs between any two objects?
Force of gravity.
Explain why an electric discharge occurs?
Because there is a potential difference between two objects.
