Lab+9+Kinetics

Controls include: target,speed,mass, and gravity
 * 1. Which Components are controlled in this lab experiment?**

Variables: Angle and distance from line
 * 2. Which Components are variables?**

The dart would continue to go at the 45o angle until some force acted upon it
 * 3. What would happen when the gun was fired at a 45o angle and there was no gravity?**

Potential
 * 4. What kind of energy does the dart have when it is sitting cocked in the gun?**

Kinetic
 * 5. What kind of energy does the dart show when it is moving?**

Energy transfered from dart to board
 * 6.What happens to the energy when the dart hits the chalk board?**

Potential
 * 7. What kind of energy is it converted to?**

The motion of our arms/muscles
 * 8. Where did the energy come from to cock the gun?**

Chemical Potential
 * 9. What kind of energy is that?**

My prediction is that when the angle gets smaller, the distance will be increased
 * 10. What is your prediction from the graph?**

My prediction was correct. The each time we lowered the degree of the angle the distance increased
 * 11. Did the test show the prediction was correct or not?**

Darts and arrows are usually accompanied with "feathers" in order for them to spin and fly strait. Bullets do not use this these because they are immediately spinning when shot out of a barrel of a gun
 * 12. Why do you think that darts and arrows have "feathers," but bullets don't? (search online)**

Having more mass for the dart allows it to increase the range. This happens because with greater inertia gravity will have a smaller force on it.
 * 13. How does increasing the mass affect the range of the dart?**

gravity and inertia
 * 14. Which are the two forces at work on the darts**

Graph 1: Angle vs. Distance: As the angle decreased the distance increased
 * Degree of Angle || Distance (cm) ||
 * 180 || 130 ||
 * 155 || 144 ||
 * 140 || 155 ||

Graph 2 Mass Vs. Angle As the mass of the dart increases the degree of angle increases as well
 * Mass (g) || Degree of angle ||
 * 1.56g || 140 ||
 * 1.8g || 155 ||
 * 2.28g || 165 ||


 * Excercise 2**
 * Lever 1a:**

Lever 1 because fulcrum between effort and load

Lever 1 because fulcrum between effort and load
 * Lever 1b**

Lever 2 because the load is between the fulcrum and the effort Lever 2 because the load is between the fulcrum and the effort
 * Lever 2a**
 * Lever 2b**

Lever 3 because the effort is between the fulcrum and the load Lever 3 because the effort is between the fulcrum and the load Before
 * Lever 3a**
 * Lever 3b**
 * Excercise 3**
 * Created simplier experiment where hat represents dishes and, and piece of paper represents the table cloth.**

After

This law works because an object at rest will remain at rest until they are acted up by a different source. Tablecloth is pulled from out underneath the dishes in a fast enough matter where little friction is present on the dishes so they are not forced to move

Other examples didn't work because cloth wasn't pulled out fast enough from underneath the dishes so enough friction was present so the force cause the dishes to fly off