Law of Conservation of Energy

Law of Conservation of Energy

By Ms. Frank

Law of Conservation of Energy

States that when one form of energy is transformed to another, no energy is lost in the process. Energy cannot be created nor destroyed, but it can change form.

Does this sound familiar? What does this mean?

In simple terms, it's the ability to do work or cause change. What it takes to move, light up, and heat up. Think of it as the fuel that powers everything!

What is Energy?

The electromagnetic radiation emitted by the sun that can be harnessed and converted into useful forms of energy, like electricity or heat.

Light Energy

​The energy of chemical substances that is released when the substances undergo a chemical reaction and transform into other substances like batteries, food, and gasoline.

Chemical Energy

​Is stored energy and object has due to its position or chemical composition

Potential Energy

​The energy an object possesses due to its motion

Kinetic Energy

Energy possessed by an object due to its motion or it's position. The sum of kinetic energy and potential energy, or
ME = KE + PE

Mechanical Energy

​The energy an object has due to the motion of its particles (the faster the molecules the greater the thermal energy).

Thermal Energy

Energy from the vibration of particles

Sound Energy

​The energy from the nucleus of an atom. When an atom's nucleus breaks apart (fission) or is fused (fusion) energy is released.

Atomic (Nuclear) Energy

Multiple Choice

A fire is an example of what kind of ENERGY?

• Nuclear

• Sound

• Thermal

• Chamical

Multiple Choice

A car speaker is an example of this type of ENERGY

• Thermal

• Nuclear

• Elastic

• Sound

Multiple Choice

a ball on the top of a building has this type of ENERGY

• Electrical

• Sound

• Thermal

• Gravitational Potential Energy

Multiple Choice

the atom bomb has this type of ENERGY

• Elastic

• Mechanical

• Nuclear

• Electromagnetic

Multiple Choice

gasoline has this type of ENERGY

• chemical

• nuclear

• gravitational potential

• electromagnetic

Multiple Choice

power lines are an example of this type of ENERGY

• sound

• mechanical

• electrical

• nuclear

Multiple Choice

a boy riding a bike has this type of ENERGY

• Gravitational Potential

• chemical

• elastic

• mechanical

Multiple Choice

a microwave has this type of ENERGY

• electromagnetic

• sound

• thermal

• elastic

Multiple Choice

What does the law of conservation of energy state?

• Energy can be both created and destroyed

• Energy cannot be created but can be destroyed

• Energy can be created but cannot be destroyed

• Energy cannot be created or destroyed, but can change form.

Multiple Choice

What does the law of conservation of MASS state?

• Energy can be both created and destroyed in a physical or chemical change

• matter cannot be created nor destroyed in a physical or chemical change

• matter cannot be created but can be destroyed in a physical or chemical change

• matter can be created but not destroyed in a physical or chemical change

Multiple Choice

What is a physical change?

• A change to an object's physical appearance/properties (chopping wood, shredding paper).

• A change to an object's chemical makeup, created a new substance (burning wood, iron rusting).

Multiple Choice

What is a chemical change?

• A change to an object's physical appearance/properties (chopping wood, shredding paper).

• A change to an object's chemical makeup, created a new substance (burning wood, iron rusting).