Question

8 how is kinetic energy related to heat energy? a kinetic energy is a measure of temperature b heat energy is a form of kinetic energy c only warm objects have kinetic energy d heat energy is another word for kinetic energy

Explanation:

• Option A: Temperature is related to the average kinetic energy of particles, but kinetic energy is not a measure of temperature. So A is incorrect.
• Option B: Heat energy (thermal energy) comes from the kinetic energy of the random motion of particles (atoms/molecules) in a substance. So heat energy is a form of kinetic energy. This is correct.
• Option C: All objects in motion (or with particles in motion) have kinetic energy, regardless of temperature. For example, a moving car has kinetic energy even if it's cold. So C is incorrect.
• Option D: Heat energy and kinetic energy are not the same. Kinetic energy can be of objects in motion (like a ball), while heat energy is the kinetic energy of microscopic particles. So D is incorrect.

Answer:

B. Heat energy is a form of kinetic energy