Presentación: Electricity & The Future of Energy


Electricity & The Future of EnergyVersión en línea Energy basics & future por Munira Cochinwala 1 Slide 1 — Title Slide ELECTRICITY & THE FUTURE OF ENERGY Energy Sources • Solar Power • Nuclear Energy • Hydroelectricity • EVs • Electrical Power & Cost Opening Question: > “What would happen if electricity disappeared tonight?” (Ask students before moving ahead.) 2 Slide 2 — Life Without Electricity Imagine NO electricity for 24 hours… No phones No WiFi No lights No refrigerators No hospitals functioning properly No charging No lifts No traffic systems Discussion > Which thing would affect YOU the most? (Allow students to answer.) 3 Slide 3 — Journey of Electricity ENERGY JOURNEY Source → Generation → Transmission → Usage → Cost → Future Examples: Sun → Solar panel → House Water → Turbine → Electricity Uranium → Heat → Steam → Electricity Teacher Talk > Electricity does not appear magically. It is produced from energy sources. 4 Slide 4 — Main Energy Sources TYPES OF ENERGY SOURCES Renewable Non-Renewable Solar Coal Hydro Oil Wind Natural Gas Geothermal Nuclear Fuel Ask > Which source do you think is best for the future? 5 Slide 5 — Hydroelectric Power HOW HYDROELECTRICITY WORKS 1. Water stored in dam 2. Water falls downward 3. Turbine spins 4. Generator produces electricity 5. Electricity travels through wires Activity Assign students: Dam Water Turbine Generator Bulb Act out the process. 6 Slide 6 — Advantages & Problems of Hydro Power HYDRO POWER Advantages Renewable Low pollution Reliable Problems Expensive dams Flooding of land Affects ecosystems Discussion > Should more dams be built in Kenya? 7 Slide 7 — Nuclear Energy NUCLEAR POWER How it works: Uranium atoms split Huge heat produced Water becomes steam Steam spins turbines Electricity generated Important Idea > Nuclear plants use heat to spin turbines — just like many other power stations. 8 Slide 8 — Nuclear Energy: Good or Dangerous? Advantages Produces huge electricity Very low carbon emissions Reliable Risks Radioactive waste Accidents can be dangerous Very expensive to build Debate > Would you want a nuclear plant near your city? 9 Slide 9 — Solar Energy PHOTOVOLTAIC SOLAR ENERGY Photovoltaic means: > Converting sunlight directly into electricity. Solar Cells: absorb sunlight move electrons create electric current Real Life Examples Solar calculators Solar street lights Solar rooftops 10 Slide 10 — Future of Solar Energy THE FUTURE OF SOLAR POWER Possible future: Solar homes Solar charging stations Solar roads Solar cities Cheaper batteries Ask > Could solar become the world’s main energy source? 11 Slide 11 — Electric Vehicles (EVs) ELECTRIC VEHICLES EVs use: Electric motors Rechargeable batteries Examples Tesla Electric buses Electric bikes Important Point > EVs STORE electricity. They do not produce electricity. 12 Slide 12 — EV Discussion EVs: Advantages & Challenges Advantages Less pollution Quiet Lower fuel cost Challenges Charging stations needed Battery replacement expensive Charging takes time Class Vote > Petrol car or EV? 13 Slide 13 — Understanding Electrical Power ELECTRICAL POWER P = VI Where: P = Power (Watts) V = Voltage I = Current Simple Meaning > Power tells us how fast energy is being used. Example Phone charger → low power Iron box → high power 14 Slide 14 — Electrical Energy ELECTRICAL ENERGY E = Pt Where: E = Energy P = Power t = Time Important Idea > The longer an appliance runs, the more energy it uses. 15 Slide 15 — Calculating Electricity Bills ELECTRICITY COST Example A 1000 W iron is used for 2 hours. Step 1 Convert to kilowatts: 1000 W = 1 kW Step 2 Energy Used: 1 × 2 = 2 kWh Step 3 If 1 unit costs KSh 25: 2 × 25 = KSh 50 Ask Students > Which home appliance uses the most electricity? 16 Slide 16 — Group Activity SAVE THE COUNTRY! Situation: Kenya’s electricity demand has doubled. Your team must decide: How much solar? Hydro? Nuclear? Wind? EV charging? But remember: Limited budget Pollution concerns Growing population (Students present solutions.) 17 Slide 17 — Future Energy City DESIGN A CITY OF 2050 Include: Power sources EV transport Smart homes Renewable energy Energy-saving ideas Activity Groups draw or present their city. 18 Slide 18 — Final Reflection THE FUTURE IS YOURS Think: Which energy source is most important? How can electricity be saved? What changes will happen in the future? > “What kind of world do YOU want to power?” 19 Request for Topic Please provide the topic or the attached materials to base the slides on. You mentioned pictures; share the subject and any key points you want included.

1

Slide 1 — Title Slide

ELECTRICITY & THE FUTURE OF ENERGY

Energy Sources • Solar Power • Nuclear Energy • Hydroelectricity • EVs • Electrical Power & Cost

Opening Question:

> “What would happen if electricity disappeared tonight?”

(Ask students before moving ahead.)

2

Slide 2 — Life Without Electricity

Imagine NO electricity for 24 hours…

No phones

No WiFi

No lights

No refrigerators

No hospitals functioning properly

No charging

No lifts

No traffic systems

Discussion

> Which thing would affect YOU the most?

(Allow students to answer.)

3

Slide 3 — Journey of Electricity

ENERGY JOURNEY

Source → Generation → Transmission → Usage → Cost → Future

Examples:

Sun → Solar panel → House

Water → Turbine → Electricity

Uranium → Heat → Steam → Electricity

Teacher Talk

> Electricity does not appear magically.
It is produced from energy sources.

4

Slide 4 — Main Energy Sources

TYPES OF ENERGY SOURCES

Renewable Non-Renewable

Solar Coal

Hydro Oil

Wind Natural Gas

Geothermal Nuclear Fuel

Ask

> Which source do you think is best for the future?

5

Slide 5 — Hydroelectric Power

HOW HYDROELECTRICITY WORKS

1. Water stored in dam

2. Water falls downward

3. Turbine spins

4. Generator produces electricity

5. Electricity travels through wires

Activity

Assign students:

Dam

Water

Turbine

Generator

Bulb

Act out the process.

6

Slide 6 — Advantages & Problems of Hydro Power

HYDRO POWER

Advantages

Renewable

Low pollution

Reliable

Problems

Expensive dams

Flooding of land

Affects ecosystems

Discussion

> Should more dams be built in Kenya?

7

Slide 7 — Nuclear Energy

NUCLEAR POWER

How it works:

Uranium atoms split

Huge heat produced

Water becomes steam

Steam spins turbines

Electricity generated

Important Idea

> Nuclear plants use heat to spin turbines — just like many other power stations.

8

Slide 8 — Nuclear Energy: Good or Dangerous?

Advantages

Produces huge electricity

Very low carbon emissions

Reliable

Risks

Radioactive waste

Accidents can be dangerous

Very expensive to build

Debate

> Would you want a nuclear plant near your city?

9

Slide 9 — Solar Energy

PHOTOVOLTAIC SOLAR ENERGY

Photovoltaic means:

> Converting sunlight directly into electricity.

Solar Cells:

absorb sunlight

move electrons

create electric current

Real Life Examples

Solar calculators

Solar street lights

Solar rooftops

10

Slide 10 — Future of Solar Energy

THE FUTURE OF SOLAR POWER

Possible future:

Solar homes

Solar charging stations

Solar roads

Solar cities

Cheaper batteries

Ask

> Could solar become the world’s main energy source?

11

Slide 11 — Electric Vehicles (EVs)

ELECTRIC VEHICLES

EVs use:

Electric motors

Rechargeable batteries

Examples

Tesla

Electric buses

Electric bikes

Important Point

> EVs STORE electricity.
They do not produce electricity.

12

Slide 12 — EV Discussion

EVs: Advantages & Challenges

Advantages

Less pollution

Quiet

Lower fuel cost

Challenges

Charging stations needed

Battery replacement expensive

Charging takes time

Class Vote

> Petrol car or EV?

13

Slide 13 — Understanding Electrical Power

ELECTRICAL POWER

P = VI

Where:

P = Power (Watts)

V = Voltage

I = Current

Simple Meaning

> Power tells us how fast energy is being used.

Example

Phone charger → low power

Iron box → high power

14

Slide 14 — Electrical Energy

ELECTRICAL ENERGY

E = Pt

Where:

E = Energy

P = Power

t = Time

Important Idea

> The longer an appliance runs, the more energy it uses.

15

Slide 15 — Calculating Electricity Bills

ELECTRICITY COST

Example

A 1000 W iron is used for 2 hours.

Step 1

Convert to kilowatts: 1000 W = 1 kW

Step 2

Energy Used: 1 × 2 = 2 kWh

Step 3

If 1 unit costs KSh 25:

2 × 25 = KSh 50

Ask Students

> Which home appliance uses the most electricity?

16

Slide 16 — Group Activity

SAVE THE COUNTRY!

Situation:

Kenya’s electricity demand has doubled.

Your team must decide:

How much solar?

Hydro?

Nuclear?

Wind?

EV charging?

But remember:

Limited budget

Pollution concerns

Growing population

(Students present solutions.)

17

Slide 17 — Future Energy City

DESIGN A CITY OF 2050

Include:

Power sources

EV transport

Smart homes

Renewable energy

Energy-saving ideas

Activity

Groups draw or present their city.

18

Slide 18 — Final Reflection

THE FUTURE IS YOURS

Think:

Which energy source is most important?

How can electricity be saved?

What changes will happen in the future?

> “What kind of world do YOU want to power?”

19

Request for Topic

Please provide the topic or the attached materials to base the slides on. You mentioned pictures; share the subject and any key points you want included.

Puedes integrar el juego en un LMS compatible con LTI 1.1 o LTI 1.3 como Canvas, Moodle, o Blackboard. De esta manera podrás guardar las puntuaciones automáticamente en el libro de calificaciones de esa plataforma.

Electricity & The Future of Energy

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Electricity & The Future of EnergyVersión en línea

por Munira Cochinwala

Slide 1 — Title Slide

Slide 2 — Life Without Electricity

Slide 3 — Journey of Electricity

Slide 4 — Main Energy Sources

Slide 5 — Hydroelectric Power

Slide 6 — Advantages & Problems of Hydro Power

Slide 7 — Nuclear Energy

Slide 8 — Nuclear Energy: Good or Dangerous?

Slide 9 — Solar Energy

Slide 10 — Future of Solar Energy

Slide 11 — Electric Vehicles (EVs)

Slide 12 — EV Discussion

Slide 13 — Understanding Electrical Power

Slide 14 — Electrical Energy

Slide 15 — Calculating Electricity Bills

Slide 16 — Group Activity

Slide 17 — Future Energy City

Slide 18 — Final Reflection

Request for Topic

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