Forces and Energy
Forces and Energy
Forces can affect objects close to it or far away
Gravitational forces affect us at the surface and pull on objects from many miles away
Magnetic forces protect us from particles from the sun
Energy travels in different ways
Sound waves need a medium to travel through
Light doesn't need a medium to travel through
Energy can be passed on
conduction
Radiation
Convection
Energy is never created or destroyed
The sun releases energy and doesn't create it
Energy can be changed
