Energy transfer and transformation

Front

What is energy transfer?

Back

Energy transfer is the process of energy moving from one system or object to another, often resulting in a change in energy form.

Front

What is energy transformation?

Back

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

Front

What is the formula for potential energy?

Back

PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What type of energy is stored in chemical bonds?

Back

Chemical energy is the energy stored within the chemical bonds of matter.

Front

What is the primary source of energy for the Earth?

Back

The Sun is the primary source of energy for the Earth, providing solar energy that drives various processes.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is thermal energy?

Back

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

Front

What is the difference between potential and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is energy of motion.

Front

What is an example of energy transformation in a flashlight?

Back

In a flashlight, chemical energy from batteries is transformed into electrical energy, which is then transformed into radiant energy (light).

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.