درجة الحرارة

What are the three main ways heat can be transferred?

• Evaporation, Condensation, Sublimation

• Conduction, Convection, Radiation

• Melting, Freezing, Boiling

• Absorption, Reflection, Refraction

What is specific heat?

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

• The amount of thermal energy required to raise the temperature of 1 kg of a substance by 1 degree Celsius.

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

• The rate at which heat is transferred between objects.

What is temperature?

• The amount of thermal energy needed to raise 1 kg of a substance by 1 degree Celsius.

• The sum of potential and kinetic energies of all particles in a body.

• The average kinetic energy of the particles that make up a body.

• The transfer of heat from a hot body to a cold body.

How does thermal energy affect the particles of a substance?

• It decreases the speed of the particles, lowering the temperature.

• It increases the speed of the particles, raising the temperature.

• It converts particles into a different state of matter without changing their speed.

• It has no effect on the speed or temperature of the particles.