Question

What happens when the temperature of an object decreases?

The object particles move farther apart

The object particles move slower

The number of the objects particles decrease

the objects particles stop moving

Answer 1

Your answer would be b

Answer 2

We know, Kinetic energy (movement of the particle) is directly proportional to the temperature of the object. When you decrease the temperature, it's movement will also decrease and object particles move slower.

In short, Your Answer would be Option B

Hope this helps!