Energy and Motion
True or false There is motion in the ocean?
True!
A car is going at 20 mph towards the west. Is this speed or velocity?
Velocity
“What is the formula for potential energy?”
Mass * gravity * height”
Imagine two skateboards rolling down a ramp: one has nothing on it, and the other has a heavy backpack on it. Which skateboard has more kinetic energy as it rolls?
The one with the heavy backpack!”
If a skateboarder starts from rest and reaches a velocity of 8 m/s to the east in 4 seconds, what is their average acceleration in meters per second squared?
2m/s^2 to the east!