Thermal Energy Intro

If particles in a substance are moving faster, what does this indicate about the substance?

• It has less potential energy.

• It has a lower temperature.

• It has more kinetic energy.

• It has a higher temperature.

What does temperature measure?

• The total kinetic energy of all particles in a substance.

• The average kinetic energy of the particles in a substance.

• The potential energy stored within a substance.

• The amount of heat transferred between objects.

What does thermal energy represent?

• The average speed of particles in a substance.

• The total kinetic energy of all particles in a substance.

• The potential energy of a substance.

• The heat transferred between objects.

Which object has more thermal energy, a hot cup of coffee or a swimming pool, and why?

• The coffee, because its particles have higher average kinetic energy.

• The pool, because it contains a much larger number of particles.

• The coffee, because it feels hotter to the touch.

• The pool, because its particles are moving slower.