Choose whether each statement below is true or false.

The motion of a the particles in a substance and the temperature of that substance are directly related.
The particles in a substance are closest together when there is less energy.
As the energy and temperature of a substance increase, the movement of the particles decreases.
The state of matter of a substance can be changed by decreasing or increasing the temperature.

1 answer

Here are the evaluations of the statements:

  1. The motion of the particles in a substance and the temperature of that substance are directly related.
    True - As the temperature of a substance increases, the kinetic energy of its particles also increases, leading to greater motion.

  2. The particles in a substance are closest together when there is less energy.
    True - Generally, in solids, the particles are densely packed together, and as energy (and temperature) increases, particles tend to move further apart, moving into liquid or gas states.

  3. As the energy and temperature of a substance increase, the movement of the particles decreases.
    False - As energy and temperature increase, the movement of the particles actually increases.

  4. The state of matter of a substance can be changed by decreasing or increasing the temperature.
    True - Changing the temperature of a substance can lead to phase changes, such as solid to liquid (melting) or liquid to gas (evaporation), and vice versa.

Overall Evaluations:

  1. True
  2. True
  3. False
  4. True