What is Energy?
The ability to do work or cause change is called
What is energy
Name three sources of energy.
wind, sun, water, food, battery, biomass
The form of energy associated with the motion
mechanical energy
When an ice skater wants to move on the ice freely, does she/he want more friction or less?
Less friction
The energy from geysers is called
geothermal energy
When you apply a force to an object and the object moves. We say _________is done.
Work
Give the FULL energy description of a ball positioned on the edge of a cliff.
gravitational potential energy
When you turn on a flashlight what forms of energy are involved in the correct order
chemical, electrical, light, heat
What is the primary source of energy on earth?
the sun
The energy from exploding atoms is called
nuclear energy
Potential Energy is a source?/type?/form? of energy.
Type
Energy that is associated with objects that can be compressed or stretched is called
elastic potential energy
Energy that is formed when particles of solid liquid or a gas vibrate.
sound energy?
Thermal energy is also what type of energy?
What is heat energy
The energy from burning fossil fuels
heat and electricity
Name the two basic types of energy
potential and kinetic
How do you know when work is being done on an object?
When a force is applied to an object and the object moves
Sound travels faster than light. True or False
False
An apple possesses what type of energy before its eaten.
Chemical Energy
According to this law, energy cannot be created or destroyed. Name this law
law of conservation of energy
What is kinetic energy?
Energy related to movement
Name three forms of energy
light, electrical, sound etc
A type of energy stored in food.
chemical energy
When a ball rolls down a slope from side to side, what position does it have the most potential energy?
Look at the diagram on the board.
A or E
As a car skids to a stop, friction transforms kinetic energy to
What is heat energy