Unit 4 Study Guide

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as electrical energy to heat energy.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is conduction?

Back

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

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants convert light energy into chemical energy (glucose) using carbon dioxide and water.

Front

What is an example of energy transformation in a kettle?

Back

In a kettle, electrical energy is transformed into heat energy, which then produces steam and sound.

Front

What happens when you touch a hot stove?

Back

Touching a hot stove is an example of heat transfer through conduction.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred between objects due to a temperature difference, while temperature is a measure of the average kinetic energy of particles in a substance.

Front

What is an example of convection in everyday life?

Back

An example of convection is using a space heater to warm up a cold room.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is the green pigment in plants that absorbs light energy, which is essential for photosynthesis.