Energy

Concept 1: Types of Energy

Success Criteria

  • I can identify different types of energy and state the unit for energy as the Joule.

  • I can describe how energy can be transformed from one form to another.

Vocabulary

Energy

Joule

Transformation

Do Now:

Hei Mahi: Discuss these questions with your neighbour. I will get all groups to contribute something.


1) What do you think 'energy' means?

2) What types of energy do you know?

What is Energy?

Success Criteria: I can identify different types of energy and state the unit for energy as the Joule.

Energy is the ability to do work. Work is what allows objects to move or change their state. The more energy something has, the more work it can do.

The unit for energy is Joules (J).

There are two types of energy: active and potential energy.

Active energy

Energy that’s making something move or change.

  • Heat energy

  • Light energy

  • Sound energy

  • Electrical energy

  • Kinetic energy

Potential energy

Energy that is stored. It needs to be transformed into an active energy to make something move or change.

  • Chemical potential energy

  • Magnetic potential energy

  • Gravitational potential energy

  • Elastic potential energy

C1 Task 1: Choose one of these resources to read.

Resource 1: Grass Level (easy level text)

M9PW C1. Types of Energy GIF Task.pptx

Resource 2: Sky Level (medium level text)

M9PW C1. Types of Energy - Sky Level.pdf

Resource 3: Sun Level (higher level text)

M9PW C1. Types of Energy - Sun Level.pdf

C1 Task 2: Choose one or all of these activities to complete.

Activity 1: Classroom examples of energy transformation (Grass Level)

In groups of 2-3 students, find real-life examples of energy transformation inside the classroom.

In your book, write about an example that goes through at least 3 energy transformations.

Activity 2: Worksheet

M9PW C1. Types of Energy Worksheet.pdf

The Law of Energy Conservation

Success Criteria: I can describe how energy can be transformed from one form to another.

Energy is always conserved.

Energy cannot be created or destroyed.

Energy can only be transformed from one form into another.

C1 Task 3: Energy Circus

For each station, write the energy transformations you observe in your Science book.

  • Station 1: Pendulum

  • Station 2: DIY Cell

  • Station 3: Tuning Fork

  • Station 4: Reaction!

  • Station 5: Solenoid

  • Station 6: Candle

  • Station 7: Light meter

  • Station 8: Battery Car

  • Station 9: Bell

  • Station 10: Boiling water

C1 Task 4: Choose one of these resources to read.

Resource 1: Sky Level (medium level text)

M9PW C1. Energy Conservation - Sky Level.pdf

Resource 2: Sun Level (harder level text)

M9PW C1. Energy Conservation - Sun Level.pdf

C1 Task 5: Choose one or all of these tasks to complete.

Activity 1: GIFs of Energy Transformation (Grass Level)

Analyse the following GIFs individually or with your neighbour.

In your book, describe all of the energy transformations happening in each GIF scenario.

M9PW C1. Energy Conservation GIF Task.pptx

Activity 2: Worksheet (Sky Level)

M9PW C1. Energy Conservation Worksheet.pdf

Concept 2: Energy in Food

Success Criteria

  • I can investigate how energy content can be measured in food.

  • I can make simple energy calculations when given the formula.

Vocabulary


Do Now:

Hei Mahi in your book:

1) List all of the food and/or drinks you have consumed today.

2) List all of the physical activities you have done today.

3) Which activities do you think involved more energy?

Using Energy

We all need energy (that we obtain from our foods in the form of chemical potential energy) in order to complete tasks. In other words, energy is required to do work.

Some foods contain more energy than others. Some activities require more energy than others.

Energy is measured in joules (J).

What have you got to do to burn off the energy from this burger?

Calculating the Energy in Food

Success Criteria:

I can investigate how energy content can be measured in food.

I can make simple energy calculations when given the formula.

The amount of energy in an item of food can be found by burning the food and using it to heat up a sample of water (transforming the chemical potential energy into heat energy).

The change in temperature of the water indicates the amount of energy in the food sample.

This is the equation you use to calculate the amount of energy in food.

's' is the heat capacity of water, which is the amount of energy needed to heat 1 g of water 1°C.

Task 1: Complete this practical assessment in class.

M9PW C2. Energy in Food Practical.pdf

Task 2: Read the resource below and complete the questions.

Resource: Sky Level (medium level text)

M9PW C2. Energy in Food - Sky Level.pdf

Worksheet: Sun Level (harder)

M9PW C2. Energy in Food Worksheet.pdf

Concept 3: Making Electricity

Success Criteria

  • I can explain energy resources as renewable or non-renewable, and give examples.

  • I can explain how electricity is made from various energy resources.

Vocabulary


Do Now:

Hei Mahi with your neighbour:

What if all of the sudden, the world had no more electricity?

Brainstorm any ideas of what would happen afterwards. Get creative! (e.g. no more hot showers!)


Energy Resources

Success Criteria:

I can explain energy resources as renewable or non-renewable, and give examples.

I can explain how electricity is made from various energy resources.

Energy sources are either renewable or non-renewable.

Non-renewable sources of energy are limited and will run out.

  • Fossil fuels

  • Nuclear fuels

Renewable sources of energy can be replenished by humans or nature.

C3 Task 1: Choose one of these resources to read.

Resource 1: Grass Level (easy level text)

M9PW C3. Making Electricity - Grass Level.pdf

Resource 2: Sky Level (medium level text)

M9PW C3. Making Electricity - Sky Level.pdf

Resource 1: Sun Level (harder level text)

M9PW C3. Making Electricity - Sun Level.pdf

C3 Task 2: Research and report back.

You may work in groups of 3-4 students. Each student will research one of the following renewable resources:

  • Solar power

  • Wind power

  • Hydro power

  • Geothermal energy

You MUST create a labelled diagram that summarises:

  • How electricity is made from the chosen renewable resource.

  • What energy transformations occur in order to generate electricity from the chosen renewable resource.

After 20 minutes, each student will report back to their group and present their diagram of their chosen renewable resource.

C3 Task 3: Complete the worksheet below.

M9PW C3. Making Electricity Worksheet.pdf