AKS 7a - Energy Types and Transform

Energy Forms & Transformations

By Ms. Brown

STORED energy

or

Energy that is ready to be released.

​

Potential Energy

• Potential Energy (PE)
  
  

• Kinetic Energy (KE)

​Two Types of Energy

The ability to MOVE or CHANGE matter in some way.

The ability to do WORK.

Science Definition

What is Energy?

​The more massive an object is, the more work is required to move it.

The more work required to move an object - the more PE an object has.

​

Potential Energy and Size

Hotspot

Click on where the rollercoaster has the MOST potential energy.

Any moving object has Kinetic Energy

The faster an object is moving, the more Kinetic Energy it has.

The more massive an object, the more KE it has

​

How does Kinetic Energy Work?

Yes! Objects in motion can have a mix of PE and KE

Can something have both PE and KE?

​

​As the ball rolls down the hill, PE is converted into KE. While in the middle of the hill, the ball has BOTH!

Electromagnetic Energy

Definition: Sun gives off energy as
electromagnetic waves it is called radiant
energy.

Examples :

Microwaves

Gas flames

Chemical Energy

Examples:

Chemical energy- is energy stored in the bonds of
atoms and molecules. Chemical energy is converted to
thermal energy when people burn wood in a fireplace or
burn gasoline in a car's engine.

Electrical Energy

Electric Energy- is the energy
that an electric current carries.

Examples:

Sound Energy

Sound energy- is the movement of energy in waves. It is
generated by vibrations and needs a medium, such as air,
water, or a solid to travel through.It is produced when
sound waves move outwards from a vibrating object or
sound source.

Nuclear Energy

Nuclear Energy - is energy that is stored in
the nucleus of an atom

Examples:

Sun

Nuclear weapons

Thermal Energy

Thermal Energy: is the energy due to the motion of
particles that make up an object. Thermal energy
moves from hot or warm objects and heats up the
contacting surface.

Examples:

Multiple Choice

This type of energy is stored in the nucleus of an atom

• Nuclear energy

• Sound energy

• electrical energy

• chemical energy

Multiple Choice

The movement of energy waves. A medium of vibrations such as air and water generated it.

• nuclear energy

• electrical energy

• sound energy

• thermal energy

Multiple Choice

The hot sun was releasing a large amount of ________ energy causing the day to be extremely hot.

• Sound energy

• Thermal energy

• Electrical Energy

Multiple Choice

Phones require this type of energy from a battery to continue to work.

Electrical energy from the wall to ________ energy to the battery.

• thermal energy

• sound energy

• chemical energy

• radiant energy

Multiple Choice

This type of energy carries a current.

• Radiant energy

• Sound energy

• nuclear energy

• electrical energy

Multiple Choice

This energy is due to the motion of particles that make up an object. Thermal energy moves from hot objects and heats up the surface that it is contacting.

• chemical energy

• thermal energy

• sound energy

• nuclear energy

Match

Match the following

Nuclear Energy

Sound energy

Thermal Energy

Chemical

Energy

Mechanical Energy

• Nuclear Energy

• Sound energy

• Thermal Energy

• Chemical

  Energy

• Mechanical Energy

Law of Conservation of Energy

• Energy cannot be created or destroyed.
• It can only be transformed or transferred from

one form to another.

Key Concept

• The total energy of an isolated system remains

constant over time.

Dropdown

Energy can be created. ​

Select answer

Conservation of Energy Example

• Roller Coaster:
• - At the top: Maximum potential energy
• - As it moves: Potential energy converts to

kinetic energy

• - Total energy remains constant.

Labelling

Label the parts of the track.

Drag labels to their correct position on the image

Least potential energy

Most potential energy

Both kinetic and potential energy

Energy Transformation

• Energy transformation is the process of

changing energy from one form to another.

• Example: Chemical energy in food becomes

mechanical energy in your body.

Examples of Energy

Transformations

• 1. Electrical to Thermal: Toaster
• 2. Chemical to Mechanical: Car engine
• 3. Solar to Electrical: Solar panels

Reorder

Order the steps that powerplant energy would take to heat your home?

• Chemical energy to mechanical

• mechanical energy to electrical

• electrical energy to thermal

1

2

3

• 1
• 2
• 3

Multiple Choice

Which description of the energy conversions in this process is correct?

• The chemical energy in the fuel-air mixture is converted to thermal energy, which is then converted to mechanical energy

• The mechanical energy in the fuel-air mixture is converted to electrical energy, which is then converted to thermal energy

• The electrical energy in the fuel-air mixture is converted to mechanical energy, which is then converted to thermal energy

• The thermal energy in the fuel-air mixture is converted to electrical energy, which is then converted to mechanical energy

Multiple Choice

Students build a circuit that has wires that connects a battery to a switch and a fan.

Which energy transformations happen when the students close the circuit and the blades of the fan begin to spin?

• Chemical to mechanical to electrical

• Electrical to chemical to mechanical

• Chemical to electrical to mechanical

• Mechanical to electrical to chemical

Multiple Choice

Which energy transformation happens when the blades are spinning as shown?

• Electrical to mechanical

• Chemical to electrical

• Mechanical to electrical

• Chemical to mechanical

Multiple Choice

Which statement describes the energy changes that occur when water in a tea kettle is heated on a stove that uses natural gas?

• Chemical energy to thermal energy to sound energy

• Thermal energy to sound energy to light energy

• Electrical energy to thermal energy to sound energy to light energy

• Light energy to chemical energy to kinetic energy to sound energy

Multiple Choice

A cook heats a meal in a microwave oven. What energy transformations occur between the microwave oven and the meal?

• Electrical energy to light energy to chemical energy

• Chemical energy to thermal energy to light energy

• Electrical energy to electromagnetic energy to thermal energy

• Chemical energy to electromagnetic energy to chemical energy

Multiple Choice

A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy changes that occurred?

• The chemical energy stored in the match changed to thermal energy and light energy

• The thermal energy stored in the match changed to light energy and chemical energy

• The light energy and thermal energy stored in the match changed to mechanical energy

• The light energy and thermal energy stored in the match changed to chemical energy

Multiple Choice

This appliance dries clothes primarily by converting -

• electrical energy to heat and mechanical energy

• mechanical energy to heat and electrical energy

• electrical energy to heat and light

• mechanical energy to heat and vaporization

Multiple Choice

When a lion eats a zebra and then uses the energy from the zebra to run, the lion's body converts =-

• chemical energy to mechanical energy

• electrical energy to chemical energy

• chemical energy to light energy

• mechanical energy to chemical energy

Multiple Choice

What energy transformations occur when propane gas is used to lift the balloon?

• Mechanical -> light -> chemical

• Chemical -> mechanical -> thermal

• Thermal -> chemical -> light

• Chemical -> thermal -> mechanical

Match

Match the following

• Electrical Energy

• Chemical Energy

• Mechanical Energy

• Thermal Energy

Electrical Outlet

Battery

Movement

Heat

• Electrical Outlet

• Battery

• Movement

• Heat

Match

Match the following

Chemical Energy

Thermal Energy

Light Energy

Mechanical Energy

• Chemical Energy

• Thermal Energy

• Light Energy

• Mechanical Energy

Multiple Choice

What energy transformations occur when a solar panel is used to power a fan?

• Light energy to electrical energy to mechanical energy

• Electrical energy to light energy to mechanical energy

• Mechanical energy to electrical energy to light energy

• Light energy to mechanical energy to electrical energy

Multiple Choice

What energy transformations occur when a flashlight is turned on?

• Chemical energy to electrical energy to light energy

• Electrical energy to chemical energy to light energy

• Light energy to electrical energy to chemical energy

• Electrical energy to light energy to chemical energy

Multiple Choice

What energy transformations occur when a wind turbine is spinning?

• Mechanical energy to electrical energy

• Electrical energy to mechanical energy

• Thermal energy to mechanical energy

• Chemical energy to mechanical energy

Categorize

Options (8)

Battery

Gasoline

Driving a car

Riding a bicycle

Sharpening a pencil

Stretched Rubber Band

Turning on a lightbulb

The Sun

Organize these options into the right categories

Mechanical Energy

Chemical Energy

Elastic Potential Energy

Light Energy