1.How Newton's laws apply to the physical world
2. How friction and gravity apply to Newton's laws.
3.The similarity and/or relationship between acceleration and speed
4.How a simple machine(s) use mechanical advantage to transfer energy
5.Effectively explain how different forms of energy can be used to influence the U.S's energy and power needs
Pro. #1
How does the mass of a ball affect how far a piece/block of wood or aluminum will travel?
Hypothesis: I think the basketball will push the bock the farthest for it has a large force of impact and mass.
Variables: CV: Ball type (basketball, tennis ball, etc.)
MV: piece of wood/aluminum
IV: distance block travels (in.)
Materials: Pinball
Basketball
Golfball
Light slope
Block of any sort
Procedure:
1. Gather materials
2. Create Excel page
3. Find flat location
4. Build stand
5. Set light slope on stand
6. Place block in front of light slope
7. Place basketball at top of slope
8. Roll Basketball down slope
9. Record results
10. Repeat steps 7-9 two more times w/ pinball and golfball
11. Create graph
12. Clean up lab
On trial #1, the pinball rolled down a slanted surface, pushing the block/box 4 and 1/4 inches from its starting position. Then, the golfball pushed the box 2 and a half inches. Lastly, the basketball pushed the block/box exactly 11 inches from the starting position. I have concluded that the larger the mass, the farther an object will travel, depending on the speed of whatever is pushing an object. My hypothesis was correct, for the basketball had the most mass, and pushed the box the farthest distance.
Pro. #2
What impact does the angle of a slope have on the distance a toy car pushes a small block?
Hypothesis: I think the steeper the slope/track is, the faster the car will move, causing the block to travel farther.
Variables: CV:Slope degree/slant amount
MV:Object riding down track/slope
IV:Distance block travels (inches)
Materials: Plastic car(s)
Sloped ramp or surface
Ruler
Small block
Procedure:
1. Gather materials
2. Find location
3. Create Excel page(empty)
4. Adjust track to any angle
5. Place car on top of slope
6. Run car down slope
6. Run car down slope
7. Record results
8. Change angle of slope
9. Repeat steps 5-7 two more times
10. Create graph
11. Clean up lab
External Variables: I will eliminate all external variables by reviewing them and exclude them from my procedure, experiment, etc.
Conclusion: On trial #1, the car traveled down the slope at a low angle, causing the block to travel 5 inches from its starting position. On the second attempt, the track/slope was at a medium angle, therefore making the car push the block 3 inches. Ont he last trial, the slope was at a steep angle, causing the car to push the block 8 and 1/4 inches. My hypothesis was correct, because If the slope is at a steeper angle, the car will travel down it faster, causing it to have a larger force of impact on the block.
Pro. #3
What impact does the angle of a track have on the speed an object travels down it?
External Variables: I will eliminate all external variables by reviewing them and exclude them from my procedure, experiment, etc.
Conclusion: On trial #1, the car traveled down the slope at a low angle, causing the block to travel 5 inches from its starting position. On the second attempt, the track/slope was at a medium angle, therefore making the car push the block 3 inches. Ont he last trial, the slope was at a steep angle, causing the car to push the block 8 and 1/4 inches. My hypothesis was correct, because If the slope is at a steeper angle, the car will travel down it faster, causing it to have a larger force of impact on the block.
Pro. #3
What impact does the angle of a track have on the speed an object travels down it?
Hypothesis: I think the steeper a track is, the faster an object will travel down it, for gravity will pull it towards the ground/floor quicker
Variables: CV:Slope degree/slant amount
MV:Object riding down track/slope
IV:Distance block travels (inches)
Materials: Plastic car(s)
Sloped ramp or surface
Ruler
Small block
Procedure:
1. Gather materials
2. Find location
3. Create Excel page(empty)
4. Adjust track to any angle
5. Place car on top of slope
6. Run car/ball down slope
7. Record results
8. Change angle of slope
9. Repeat steps 5-7 two more times
10. Create graph
11. Clean up lab
External Variables: I will eliminate all external variables by reviewing them and exclude them from my procedure, experiment, etc.
Conclusion: After 3 trials, I have concluded that the steeper a slope is, the faster an object will travel down it. For trial 1, the slope was at a slight angle (25 degrees), measuring in at 2 to 2.5 seconds. Trial 2 was measured at 1.6-2 seconds, which was at a moderate angle (roughly 45 degrees). Lastly, the steepest angle (70 degrees), trial 3, came in at 1 to 1.5 seconds rounding. Therefore, since an object has more of an angled decent, it will reach its destination quicker.
Pro. #4
The Rube Goldberg starts out by having a pencil attached to an air-hockey puck knock down roughly three dominoes using gravity. Then, the dominoes roll a golf ball down a ramp, again using gravity but with momentum, to bounce off a nearby wall, causing more dominoes to fall down. From there, the dominoes use momentum to continue up a slanted surface, eventually pushing a spring-loaded car across a large area. The force from the speed of the plastic car will hit a large, cardboard poster, one after another, until gravity pulls the last one down onto another golf ball, eventully rolling into a hole, ending the Rube Goldberg.
Dear congressmen of the United States,
Over the past, say years or more, hydraulic energy has been proficiently helpful to America. Since the Dam, or hydraulic wheel. Since the beginning in Mesopotamia and ancient Egypt, the irrigation system has helped farmers grow crops for money, livestock, and for some, property. In India, wheels in water mills provided energy and less labor, as it still does today. During the 1830s, the canal-building era, hydraulics were used to help traffic throughout the canal-ways, using inclined plane railroads. ever since the pipe system has come out many decades ago, underground water transport and energy transfer has become more labor free and efficient.
Up to the modern age, with dams, such as Hoover Dam, on the border of U.S. states Nevada and Arizona. Recently, the new Jet d'Eau in Geneva, Switzerland, a high-pressured underground waterline, has been created to swiftly and quickly transport water throughout the country; basically, it's a high-speed water-pipe system. Back in America, families, large and small, use pipe systems and hydraulic wheels to power not only their home, but simple devices, such as sinks, showers, and garden hoses. So, as you can probably see, irrigation and hydraulic energy has helped not only the U.S. and it's energy, but the rest of the world, from ages ago, and centuries to come.
No comments:
Post a Comment