Energy Waves and Electric Current Models
Understanding how energy moves through waves and electricity Year 6 Science - Energy Transfer
What is Energy?
Think about when you throw a ball What makes the ball move? Where does that energy come from?
Energy Causes Change
Energy is the ability to cause change When something changes, energy is involved Energy can move from one place to another Energy comes in many different forms
What are Waves?
Waves carry energy from place to place The wave moves, but the material stays in place Think of ocean waves - water goes up and down Energy travels forward through the wave
Light Waves vs Sound Waves
{"left":"Light waves travel very fast\nLight can travel through empty space\nWe see light with our eyes\nLight waves are electromagnetic","right":"Sound waves travel slower than light\nSound needs matter to travel through\nWe hear sound with our ears\nSound waves are vibrations in air"}
Wave Energy Demonstration
Drop a pebble in a bowl of water Watch the ripples spread outward Notice: water doesn't move forward Energy travels through the ripples
How Light Transfers Energy
Sunlight carries energy to Earth Plants use light energy for photosynthesis Solar panels convert light to electricity Light energy can heat objects
How Sound Transfers Energy
Sound waves carry energy through vibrations Your voice makes air particles vibrate These vibrations reach other people's ears Sound can break glass with enough energy!
Electric Current Model
Key Learning
Energy is always involved when something changes. Waves and electric currents are two important ways that energy moves from place to place in our world.