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Energy and Electricity Exploration
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Energy and Electricity Exploration
⚡ Part 1: Energy Forms and Transformations
1. Match each energy form to its correct example by drawing lines:
Kinetic Energy
Potential Energy
Heat Energy
Light Energy
Sound Energy
A torch beam
Water behind a dam
A hot cup of tea
Music from speakers
A moving bicycle
2. Which energy transformation occurs when you turn on a torch?
Chemical → Light + Heat
Electrical → Sound + Heat
Kinetic → Potential + Light
Light → Chemical + Heat
3. Describe the energy transformations that occur when you ride a bicycle up a hill:
4. The Law of Conservation of Energy states that energy cannot be _____________ or _____________, only _____________ from one form to another.
🔌 Part 2: Electrical Circuits
5. Which of these materials are good electrical conductors? (Tick all that apply)
Copper wire
Plastic ruler
Aluminium foil
Wooden stick
Steel nail
6. In a simple circuit with one battery and one light bulb, what happens to the brightness if you add a second identical light bulb in series?
Both bulbs are brighter than the original
Both bulbs are dimmer than the original
Both bulbs have the same brightness as the original
One bulb is bright, one is dim
7. Draw a simple circuit diagram showing a battery, switch, and light bulb connected in a complete circuit. Use proper circuit symbols:
8. Explain why a switch is useful in an electrical circuit:
🏠 Part 3: Energy in Everyday Life
9. A typical New Zealand household uses about 8,000 kWh of electricity per year. If electricity costs 25 cents per kWh, what is the annual electricity cost?
10. List three ways your family could reduce energy consumption at home:
11. Explain why renewable energy sources like wind and solar power are important for New Zealand's future:
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