Question

question 17 of 20
light energy from the sun reaches an ocean beach, where people are walking. which transfer of thermal energy involved in this scenario is an example of radiation?
a. from the sun to the sand
b. from the sand to the ocean waves that strike the beach
c. from warm air over the beach to cooler air over the ocean
d. from the sand on the beach to the bottoms of a persons feet

Explanation:

Radiation is the transfer of energy by electromagnetic waves. The Sun emits light (electromagnetic radiation) that travels through space and reaches the Earth, including the sand on the beach. The other options (B, C, D) are examples of conduction (transfer through direct contact like sand - waves, sand - feet) or convection (transfer through fluid movement like air movement).

Answer:

A. From the Sun to the sand