What is Kinetic Energy?
The energy of motion
What is potential energy?
Stored energy
What is energy?
The ability to do work or produce heat
Which has more kinetic energy, a large dog sitting on a sidewalk or a small cat running down the street?
The small cat.
Kinetic energy is calculated using.....
mass and velocity
In a waterfall, potential energy is transferred to ___________
Kinetic energy
What is Elastic Potential Energy?
Energy stored by things that stretch or compress
What specific kind of energy is stored in the bonds of a molecule?
Chemical Potential Energy
In order to give a ball more potential energy, what must you do?
If a ball is still on the ground, it has ____________ energy.
No energy/zero energy
What is Gravitational Potential Energy?
Energy stored by things above their gravitational source
Which has greater kinetic energy, a bowling ball and a soccer ball are rolling at the same speed?
The bowling ball.
Name 3 types of kinetic energy.
Radiant, thermal, sound, electrical or mechanical.
What is gravity?
An invisible force that pulls objects toward each other because of their mass.
Give the formula for calculating PEg.
PEg = mgh
List 4 things that have Chemical Potential Energy.
Coal, wood, gasoline, batteries, food, heat/cold packs
Kinetic energy of a ball at the bottom of a hill equals________.
The potential energy at the top.
What is meant by the law of conservation of energy?
Energy can neither be created nor destroyed - only converted from one form of energy to another.
When potential energy becomes kinetic energy, it is called a/an _______________________.
Energy conversion.
Can the kinetic energy of an object be zero? Give a reason for your answer.
No. KE is a scalar quantity.