Heat & Energy

Front

What is an endothermic reaction?

Back

An endothermic reaction is a process that absorbs heat from its surroundings, resulting in a decrease in temperature of the surroundings. Example: Melting ice.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a process that releases heat to its surroundings, resulting in an increase in temperature of the surroundings. Example: Combustion of fuels.

Front

What happens to heat during the melting of ice?

Back

During the melting of ice, heat is absorbed from the surroundings, making it an endothermic process.

Front

What happens to heat during the freezing of juice?

Back

During the freezing of juice, heat is released to the surroundings, making it an exothermic process.

Front

What type of energy is associated with a moving object?

Back

Kinetic Energy is the energy that an object possesses due to its motion.

Front

What type of energy is stored in an object due to its position?

Back

Potential Energy is the energy stored in an object due to its position or configuration.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

How does temperature relate to kinetic energy?

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Temperature is a measure of the average kinetic energy of the particles in a substance; higher temperature means higher kinetic energy.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of 1 kg of a substance by 1 degree Celsius.