Say what Say HunH??
The law of conservation of energy states
Energy can not be created or destroyed
If an object is more dense than water, it will
sink
What is the equation for density?
Density equals mass divided by volume
A car sitting at a stop sign
Potential energy
Luster, good conductor, ductile, magnetic
Metal
Only works when the wind blows, expensive to build
Wind
Matches begin with
Chemical energy
coal, oil, natural gas, nuclear
nonrenewable resources
No luster, poor conductor, brittle
Nonmetal
Direct touch
Conduction
A ball rolling down a hill
Kinetic energy
takes millions of years to form, drilling for it destroys the environment
Oil
What are the units for mass?
Grams
Heat flow from _____ to ______
warmer, cooler
No pollution, most abundant
Solar
toxic radioactive waste and hazardous to health for 1000s of years
Nuclear
shiny or dull, malleable or brittle, partially conduct heat and electricity
Metalloid
can cause global warming, mining destroys the environment
Coal
Abundant supply, burns clean, easy to find
Natural gas
Geothermal, solar, wind, hydropower
Renewable resources
If an object is less dense than water, it will
float
Change the environment, expensive to build
hydropower
Name the method used to find the volume of an irregularly shaped object
Water displacement method
Anything with an electrical plug always begins with
Electrical energy
The higher the object, the _________ potential energy
greater