Show:
Vocabulary
Falling Weight System
Rubber Band Energy
100
What is energy?
The ability to do work
100
what can force create
motion
100
Tim wrapped the rubber band around his back axle four times. Bob wrapped it around three times. Who's car would go faster, or have more kinetic energy?
Tim's will.
200
What is motion also known as?
kinetic energy
200
What makes the washers get pulled downward?
Gravity.
200
Why does the rubber band unwrap after you have wrapped it?
When you let go, the tension from pulling the band makes it so the band unwraps and returns to it's original position.
300
Name 3 different forms of energy.
Light, chemical, electrical, heat, mechanical or sound (you have to have at least 3)
300
Name a independent variable and dependent variable in the Falling Weight System.
Independent: Number of washers (weight) Dependent: Speed of vehicle
300
Does having more weight on the vehicle affect the speed of the vehicle? Why or why not?
Yes, since having more weight on the vehicle makes the vehicle heavier and slow it down.
400
What is work?
When you apply force to move an object.
400
How is mechanical energy made?
Kinetic + Potential energy.
400
If the vehicle's band was wrapped around the axle eight times, and it crashes into the wall, what will happen?
The wall will stop all the kinetic energy in the vehicle, and the vehicle will bounce off the wall, and the band will start storing potential energy.
500
How do technical drawings help us?
They are detailed and are very specific in a way that helps you make something that is accurate to the original.
500
Explain how the weight of washers pulling on the vehicle effect the vehicle's speed.
It depends on how many washers are on the paper clip- more weight means it will go faster, less weight means it will go slower.
500
How does the rubber band effect the vehicle?
When it unwraps, it will start pulling the axle forward or backwards into the band has fully unwrapped.