lesson 1
What is energy
The ability to do work or cause change
If a roller coaster is at a peak of a hill does it have kinetic or potential energy
Potential energy
What is mechanical energy?
Energy an object has due to its shape, motion, position, or a combination
What is electromagnetic radiation
A form of kinetic energy that travels through space in waves
What is power
The rate at which work is done
What is motion
Motion is its position change to a relative object
What is kinetic energy
The energy an object possesses when in motion
What is thermal energy?
Total potential and kinetic energy of particles in an object
What is the law of conservation of energy
Energy cannot be created or destroyed
What is work
Any time you exert force on an object that causes it to move
What is force
A push or pull
What is potential energy
This is the energy that results from the position or shape of an object
What is nuclear energy?
Potential energy stored in the nucleus.
Fill in the blank
As an object falls its _______ energy decreases while its _________ energy increases
Potential and kinetic
What is elastic potential energy
Energy associated with objects that can be compressed or stretched
Rewrite the equation power= work over time
Power= force times distance over time
What is the equation for kinetic energy
Kinetic energy = one half times speed squared
Is electrical energy kinetic or potential?
It’s both
what does it mean to say that energy is conserved in an energy transformation
energy is not created or lost – it is only transformed from one form to another.
What is chemical energy
A form of potential energy that results of relative position of particles in a material
How are energy and motion related
You use energy to do work and you do work to create motion
What is the definition for GPE
This energy is related to an objects vertical position
What do plants do that involves chemical energy?
Photosynthesis
after a tornado goes over a forest what sort of evidence would their be of energy transformations or transfermations
It transfers kinetic energy which breaks the branches and trunks of trees
What is electrical energy
Energy of electric charges