Energy Conversion
What is the difference between energy Transfer and Transform?
Energy transfer: Energy moves from one point to another. (Example-Electricity from a plug to a phone battery)
Energy Transformation: Energy changes from one type to another (Example- Chemical energy in food to mechanical energy of riding a bike)
What is the difference between heat energy and thermal energy?
There is no difference. Both are the same form of energy produced from the movement of particles.
What type of energy change is taking place:
Powerpoint-> Lamp
Electrical->Light
What type of energy powers Solar Panels?
Thermal Energy (Sun)
What type of energy change is taking place:
Battery-> Torch
Chemical-> Light
What is a heat source?
The origin of heat energy
What type of energy change is taking place:
Sun-> Plant
Thermal-> Chemical
What is an object that radiates heat?
Most devices which require energy: Lamp, TV, Fridge?
What type of energy change is taking place?
Hammer->Nail
Kinetic-> Mechanical
Why do our hands warm up when we rub them?
Friction: The molecules on our skin vibrate causing heat.