Energy Types
What type of energy comes from the sun?
Radiant energy
What are positively charged particles called?
Protons
A burning piece of wood has what energy transformations?
Chemical to thermal (and radiant)
What happens when you rub a balloon on your hair?
Static electricity is created.
false
Energy stored in food.
Chemical energy
What happens when opposite charges meet?
They attract each other
A hydroelectric dam uses what energy transformations?
Potential (water height) to kinetic (water flow) to electrical.
Power source brings electricity, current flows through a conductor (the wires) to the light bulb to make light
Why are some materials better conductors than others?
Conductors allow flow, insulators block it.
Energy that causes a pot of water to boil.
Thermal energy
What is the flow of electrons called.
Current electricity
A solar panel converts what type of energy into what type of energy?
Radiant to electrical
Why is it dangerous to use appliances near water?
Water is a conductor, so you could get shocked.
What is the ultimate source of most of the energy on earth?
the sun
Energy released from splitting atoms.
Nuclear energy
What is the purpose of an insulator.
To prevent the flow of electricity
A car engine converts this energy type into another type.
Chemical to thermal, mechanical, and sometimes electrical.
What role does a resistor play in a light bulb?
Converts electrical energy to light and heat.
What orbits the nucleus?
What are the 3 ways that heat moves.
Conduction, convection and radiation
Difference between current and static electricity
Current: continuous flow, Static: sudden discharge
A battery stores what type of energy and converts it into what other type?
Chemical to electrical.
How does a battery work to create current electricity?
Chemical energy to electrical energy.
What is the relationship between potential and kinetic energy in a roller coaster?
At the top of the hill, mostly potential. When it's rushing toward the bottom it's kinetic. Energy is constantly transforming between the two forms.