Potential and Kinetic
Energy Transformation: a roller coaster reaches the top of the hill, pauses, and then rolls down the other side.
Potential --> Kinetic
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. How much kinetic energy does it have?
945 J
A massively fat cat of mass 20kg is lifted 8m into the air. Calculate the potential energy.
1,568 J
The more mass an object has, the more ______ energy
Kinetic OR Potential Energy
Energy transformation: Using a power drill
Electrical --> Mechanical (Kinetic)
A raging bull of mass 700kg runs at 10 m/s. How much kinetic energy does it have?
35,000 J
A 10kg mass is lifted to a height of 2m. What is its potential energy at this position?
196 J
Energy Transformation: A hungry football player eating a large sandwich to use the food for energy
chemical --> mechanical
A 1000-kg roller coaster car that is moving with a speed of 20.0 m/s. Determine the kinetic energy.
200,000 J
Determine the potential energy of an object that has a mass of 15 kg and a height of 2.2 meters
323.4 J
Energy Transformation: using a hot plate to boil water
electrical --> thermal (heat)
A waddling armadillo of mass 500 kg moves at 5 m/s. How much kinetic energy does it have?
6,250 J
There is a bell at the top of a tower that is 45 m high. The bell weighs 190 kg. Determine the potential energy.
83,790 J
Unit we measure energy in
Joules
Energy Transformation: A solar panel on the roof of a building to heat and cool the building
Radiant (light/electromagnetic) --> electrical
What is the kinetic energy of Nugget (Wulfert's dog) who has a mass of 4.5 kg and is running with a velocity of 1.7 m/s?
6.50 J
What is the potential energy of a 3kg ball that is on the ground?
0 J (it is on the ground!!!)