Energy that is radiated or transmitted in the form of rays or waves or particles.

Energy that is radiated or transmitted in the form of rays or waves or particles.

• A. Radiation
• B. Absorption
• C. Reflection
• D. Conduction

Answer: (A)

Energy moving away from a source as rays, waves, or particles is radiation. This form of energy transfer can occur through empty space, so it doesn’t need a medium to travel. For example, sunlight reaches Earth through the vacuum of space, and radioactive decay emits energy as particles or waves. Absorption means taking in energy, often warming the absorber. Reflection is energy bouncing off a surface. Conduction transfers energy within or between materials by contact. The description given directly matches radiation.

Energy moving away from a source as rays, waves, or particles is radiation. This form of energy transfer can occur through empty space, so it doesn’t need a medium to travel. For example, sunlight reaches Earth through the vacuum of space, and radioactive decay emits energy as particles or waves. Absorption means taking in energy, often warming the absorber. Reflection is energy bouncing off a surface. Conduction transfers energy within or between materials by contact. The description given directly matches radiation.