The basics
Energy can make matter move. True or false?
TRUE
True or false. The speed of light is 500 miles per second?
FALSE: 186,000 mi/s
WHAT HAPPENS AFTER ELECTRICITY REACHES AN APPLIANCE FROM A CORD? IT IS CHANGED INTO?
HEAT, LIGHT, OR SOUND
Kinetic Energy is what?
The energy of moving objects
What is the connection between energy efficiency and energy audits?
Audits check for efficiency.
Energy can cause matter to change. True or false?
TRUE
The Sun gives off these two types of energy.
Heat & Light
WIND TURBINES COLLECT?
ENERGY FROM WIND
Potential energy is what?
Stored energy
Which has more Potential energy: a 1kg book on a table 5 feet off the ground, or a .5kg ball on a table 10 feet off the ground?
They have the same PE!! 49 J
Heat energy makes things cooler. True or false?
FALSE
ENERGY FROM GASOLINE CAN POWER A ______________ A) CAR B) TRUCK C) AIRPLANE D) ALL OF THE ABOVE
D) ALL OF THE ABOVE
SOLAR PANELS COLLECT?
SOLAR ENERGY
What is the formula for Potential energy?
PE=MGH
Mass x Gravity x Height of object off ground
Heat travels from ____ to _____?
Hot areas to colder ones
Light energy can also be called this word that starts with "P"
Photons
Solar energy comes from which giant ball of constant Hydrogen fusion?
THE SUN
A DAM USES WATER TO PRODUCE (MAKE) WHAT?
ELECTRICITY
What is the formula for Kinetic energy?
KE= 1/2MV2
one half x Mass x Velocity (squared)
Is natural gas a renewable resource?
NO!
Daily Double!!!!
Energy is never______ or ____, only _____ between systems
created/destroyed, transferred
Electricity is the steady flow of which subatomic particle?
a) Protons
b) Jimmy Neutrons
c) Electrons
d) Photons
c) Electrons
A DAM COLLECTS WHAT KIND OF ENERGY?
WATER
Calculate PE and KE: A 10kg ball is 50 feet from ground level. You drop it. How much Potential energy did it have before dropping it?
The same 10kg ball is now thrown at 17m/s. What is its Kinetic energy?
PE= 4,900 J
KE= 1,445 J
Daily Double!!!!
The average kinetic energy of particles in a piece of matter is called?
Temperature!!