What is energy?
(x2 multiplier)
It is a source of power or work to a particular object, person, or place. It helps the variables around to continue working and without it the world would not work. (Example: The Sun)
__________ energy is the energy an object has because of its motion
[DAILY DOUBLE]
Kinetic
___________ energy is stored energy due to position.
Potential
Kinetic or Potential at Point A?
Potential
Kinetic or Potential? Point B
Kinetic Energy
the same
Kinetic or Potential? Point G
Potential Energy.
What kind of Energy is being used?
[What your headlights give off?]
Light Energy
What kind of Energy?
[What an atom bomb uses]
Nuclear Energy
The amount of work done depends on the amount of force exerted and the ________________ over which the force is applied.
distance
Energy stored in chemical bonds is called _____________________.
(x4 multiplier)
Chemical Potential Energy
True or False?
Kinetic Energy depends on mass and volume.
(x8 multiplier)
False; Mass and Velocity
T or F
A machine is a device that makes work harder.
False
Formula for Work?
(x4 multiplier)
W = Fd
A boy has been holding heavy bags for several minutes and is exhausted. Has work been done?
(x6 multiplier)
No, the heavy bags were never going over a particular distance.
Explain why work will always be in the same direction as the force?
(x2 multiplier)
That is correct.
[Daily Triple]
Formula for Kinetic Energy?
Ke = (1/2)mv2
Tell me the energy transformation of a flashlight. (three steps)
Chemical to Electrical to Light
A person that is pushing a crate for 40 meters, using 500 N of force has done how much work?
(x4 multiplier)
20,000 J
What are the three formulas that we have learned, regarding the Work formula?
(x5 multiplier)
W = Fd
F = W/d
d = W/F
What is mechanical energy?
The total amount of potential and kinetic energy in a system.
Formula for Kinetic Energy?
(x2 multiplier)
Ke = 1/2mv2
Formula for Potential Energy?
(x3 multiplier)
Pe = mgh
What does the law of conservation of energy state?
(x3 multiplier)
Energy is never created nor destroyed.
PUNISHMENT BOX
(x2 multiplier)
YOU LOST 1,000 POINTS