Vocabulary
Energy is neither created nor destroyed.
What unit is PE measured in?
Joules
As mass increases, kinetic energy will ____________
increase
Total energy=kinetic + potential
Which ocean is the deepest?
Pacific Ocean
Energy of motion
What is kinetic energy?
Name the 4 types of potential energy
gravitational potential, nuclear, elastic, chemical
Which has a greater effect on KE, speed or mass?
Speed
Where does a pendulum have the most KE?
At the bottom middle
What is the slowest living mammal on Earth?
Sloth
Stored energy
What is potential energy?
Formula for gravitational potential energy
GPE=mass of the object x height of the object
Name 4 types of kinetic energy
Sound, electric, electromagnetic, thermal
A slingshot, a bow and arrow and a rubber band are all examples of _______________
elastic potential energy
What is the longest river in the world?
The Nile
The rate of change of position (or distance traveled) with respect to time
What is speed?
An apple with a mass of 10grams is on a tree about 5.5 meters off the ground, what is the apple's GPE?
55 Joules
What is the formula for KE?
1/2 (mass times velocity squared)
Movement of energy from one system to another
What is an energy transfer?
Which is larger: asteroid or meteroid?
Asteroid
The change in an object’s position with respect to time and in comparison with the position of other objects used as reference points
What is motion?
A roller coaster has a mass of 4500 kg and is at a height of 139 meters at it's highest point. What is the GPE before that rollercoaster goes down the hill?
625,500 Joules
A rollercoaster with a mass of 4500 kg is traveling at a velocity of 30 m/s, what is the KE?
2,025,000 Joules
__________________ depends on its distance from the ground. The potential energy decreases the __________ the object is to the ground.
GPE, closer
What is the name of Nemo's mom?
Coral