Energy Forms
What is Kinetic Energy?
A form of energy that an object or particle has due to its motion.
A metal pot touches a hot stove and the pot starts to heat up! What energy transfer is happening?
Conduction
What energy transformations occur when turning on a flashlight?
Chemical energy to light energy
A 2kg soccer ball rolls across the field at 3 m/s. How much Kinetic Energy does the ball have?
This energy come from sunlight and can be used over and over again. what energy and is it Non renewable or Renewable?
Solar energy and Renewable
What is Chemical Energy?
A form of potential energy that is stored in the bonds that holds atoms and molecules.
When you feel warmth from the sun on your face, (nothing is touching you). What energy transfer is occuring?
Radiation
What energy transformations occur when eating food and then running?
Chemical energy to mechanical energy
A 5kg rock sits on a ledge thats 4 meters high. How much potential energy does it have?
200 Joules
Coal,oil,and natural gas cannot be replaced quickly, so they are called this.
Nonrenewable energy
What is Thermal Energy?
Energy due to the rate of movement of the particles of a substance; the warmer a substance is the greater its thermal energy.
Boiling water circulates in a pot as hot water rises up and the cool water sinks. What energy transfer is occuring?
Convection
What energy transformation occurs when using a toaster?
Electrical energy to heat energy
A small moter lifts a box and does 120 Joules of work in 3 seconds. What is the motors power?
40 watts
Biomass/Renewable
What is Potential Energy?
A form of energy that is STORED in an object because of its positition or arrangement.
When you hold a ice cube in your hand and it starts to melt.(the heat from your hand is moving to the ice) What energy trransfer is occuring?
Conduction
What energy transformation occurs when water is falling through a dam to make electricity?
Potential energy to electrical energy
A 3kg toy car is moving at 2 m/s while sitting 2 meters above the ground on a track. What is its total mechanical energy?
66 Joules
This energy comes from moving air that spins turbines
Renewable
What is Electrical Energy?
A form of energy that results from the flow of electrons, usually through a conductor.
A black shirt feels hotter in the sun than a white one because it absorbs more of _______. What energy transfer is this?
Radiation
What energy transformation occurs when solar panels are producing electricity?
Radiant(solar) energy to electrical energy
A 1.5 kg apple falls from a 15 meter high branch. What is its potential energy at the top?
225 Joules
methane captured frome a landfill is used for energy. N or R
Renewable