4.2 -- Force and Motion
Student Exploration: Force and Fan Carts
: force, friction, position, speed, potential energy, kinetic energy
In the Gizmo™, turn the fan
). Did the cart move?
1a. An object in motion has
and an object at rest has
kind of energy does car have?
). Press the
fan speed button to
turn on the fan. Click
. What happened?
2a. What kind of energy does the car have now?
is something that causes change in motion.
What provided the force that made the cart speed up?
The speedometer shows the cart’s
how fast it moves. A speed of 30 cm per
second means the cart moves 30 cm every second. What was the final speed of the cart?
is a force that works against motion as surfaces rub each other. Click
. What was the final speed this time? Why?