Energy 1:Question 3 Maria walked on a beach made mostly of sand. She walked

barefoot on the beach early in the morning, and the sand was

cool. When she walked in the same area in the afternoon, the

sand was hot. Which statement best describes why the

temperature of the sand increased?

Select one:

The atoms in the sand were moving more quickly.

The statement, atoms in the sand were moving more quickly best describes why the  temperature of the sand increased.

Explanation:

As Sun rises in the morning everyday and the heat energy radiations given by the Sun falls on a number of objects on our surroundings. As a result, the objects absorb this heat energy till afternoon due to which they become hot.

Hence, atoms of the objects gain kinetic energy due to which they move quickly. This shows that the temperature of the object (sand here) increases.

When Maria walked in the same area in the afternoon, the sand was hot as its particles have gained kinetic energy due to which they move rapidly from one place to another. Hence, sand feels more hot in the afternoon in the same area where she walked.

Thus, we can conclude that the statement the atoms in the sand were moving more quickly best describes why the  temperature of the sand increased.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

explanation:

a