Question

answer the following multiple choice questions about the reading.

1. according to the passage, what is temperature a measure of?

a. how much the particles in a substance are moving.
b. the total energy contained within a substance.
c. the weight of the molecules in a substance.
d. the number of atoms present in a substance.

1. what happens to the movement of atoms and molecules when something gets colder?

a. they move more slowly.
b. they move at the same speed.
c. they stop moving completely.
d. they move faster.

1. what is absolute zero, according to the passage?

a. the temperature at which atoms explode.
b. the temperature at which molecules move the fastest.
c. the temperature at which particles have the least amount of motion.
d. the temperature at which water freezes.

Explanation:

1. Temperature is defined based on the average kinetic energy of particles in a substance, which relates to their movement speed.
2. As temperature decreases (substance gets colder), particle kinetic energy drops, so movement slows.
3. Absolute zero is the lowest theoretical temperature, where particle motion reaches its minimum possible level (not full stop, just the least motion).

Answer:

1. A. How much the particles in a substance are moving.
2. A. They move more slowly.
3. C. The temperature at which particles have the least amount of motion.