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Radiation: The process of the transfer of the heat from one place to another place without heating the intervening medium is called radiation. For example, the heat from the sun reaches the earth through radiation mode. They can reflect and refract like light waves.

What is radiation 7th short answer?

The process in which heat flows from one object to another either through a medium or vacuum is called radiation. The heat absorbed from the surroundings by a body increases its temperature. The sun warms the earth through radiation. A camp fire, microwave oven and a light bulb are all examples of radiation.

What is middle school radiation?

Radiation is energy that moves from one place to another. Light, sound, heat, and X-rays are examples of radiation.

What is the definition of radiation 6th grade?

Radiation – Radiation is the transfer of energy in waves by electromagnetic radiation. Examples include the sun and waves.

What is conduction 7th grade?

Conduction. The transfer of thermal energy from one substance to another through direct contact. Convection. The transfer of thermal energy by the circulation or movement of a fluid (liquid or gas).

What is radiation explain?

Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation “electromagnetic waves”.

What is convection short answer?

Definition of convection 1 : the action or process of conveying. 2a : movement in a gas or liquid in which the warmer parts move up and the cooler parts move down convection currents. b : the transfer of heat by convection foods cooked by convection — compare conduction, radiation.

How do you explain radiation to a child?

Radioactivity is simply when very small particles in objects emit energy or smaller particles. The energy that is produced can result in cancer, serious environmental damage, or helpful technologies. There are different degrees of radioactivity, and different exposures increase the harm it can cause.

What is a simple definition of radiation?

Related Pages. Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation “electromagnetic waves”.

What is difference between conduction convection and radiation?

In conduction, heat transfer takes place between objects by direct contact. In convection, the heat transfer takes within the fluid. In radiation, heat transfer occurs through electromagnetic waves without involving particles. The heat transfer takes place due to the difference in temperature.