Energy 1
The ability to do work, or cause change.
What is energy?
The type of energy in the foods you eat, in batteries, in the the cells of your body, and fuel?
What is Chemical Energy?
A car skids to a stop; friction transforms Kinetic Energy to this.
What is Thermal Energy?
Eg=mgh
What is the equation for Potential Energy?
This is associated with the motion, position, or shape of an object.
What is Mechanical Energy?
1. Kinetic
2. Gravitational potential
3. Chemical
4. Thermal
5. Elastic
6. Sound
What are six types of energy?
The equation for Kinetic Energy.
1/2mv2=?
The energy stored by an object due to its position relative to others.
What is Potential Energy?
A ball positioned on the edge of a cliff has this.
What is gravitational potential energy?
This energy is associated with an object's speed and mass. It can also be transferred to other objects through collisions.
What is kinetic energy?
Ek + Eg
What is the equation for mechanical energy?
Coal, a spring, food, sun, water, etc.
What are 3 sources of energy?
Whenever there is friction between the air and an object, or the ground and an object this kind of energy is produced.
What is thermal/heat energy?
Energy formed when particles of a solid, liquid, or gas vibrate.
What is Sound Energy?
An energy source that is continually replenished such as wind, solar, or waves (tidal).
What is a renewable resource?
The SI unit of energy and work.
What is a Joule?
This is the primary source of energy on earth.
What is the sun?
Energy associated with objects that can be compressed or stretched.
What is Elastic Energy?
A skateboarder in a half pipe has the greatest potential energy here.
What is at the top of either side?
A truck is traveling at 10mph. A bicycle is traveling at 10mph. This object has more kinetic energy.
What is the truck because it has more mass than the bicycle?
Energy can neither be created nor destroyed, only transferred from one form to another.
What is the Law of Conservation of Energy?
A falling object is on its way down and has 25J of potential energy, and its TOTAL mechanical energy is 100J. It has this much kinetic energy.
What is 75J?
When force is applied to an object and the object moves, ________ is done.
What is work?
This is the force that causes a falling object to gain kinetic energy.
What is gravity?
A book sitting on a table has 100J of potential energy and 0J kinetic energy. The book has this much mechanical energy.
What is 100J?