Heat, Temperature & Thermal Energy

Front

What is the energy transformation that occurs when food is converted into movement in the body?

Back

Chemical energy is transformed into mechanical energy.

Front

How does thermal energy move between objects of different temperatures?

Back

Thermal energy always moves from a high temperature object to a lower temperature object.

Front

What type of energy is stored in food, such as a hamburger?

Back

Chemical energy.

Front

What is absolute zero?

Back

Absolute zero is the lowest temperature possible, where molecular motion stops.

Front

What happens to heat in an exothermic reaction?

Back

In an exothermic reaction, heat is given out or released.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance.

Front

What is the difference between heat and temperature?

Back

Heat is the transfer of thermal energy, while temperature is a measure of the average kinetic energy of particles.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a process that absorbs heat from its surroundings.

Front

What is the significance of the specific heat capacity of a substance?

Back

Specific heat capacity determines how much heat energy is required to change the temperature of a unit mass of a substance by one degree Celsius.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.