- How Newton’s Laws of Motion apply to the physical world
- How friction and gravity apply to newton’s Laws
- The relationship between speed and acceleration
- How simple machines utilize mechanical advantage to transfer energy
- Effectively explain how alternate forms of energy can be utilized to influence the United States energy needs
Proficiency #1
Problem: How does the weight of a toy car effect the distance the block is moved
Hypothesis: I think the more weight it has the more the block will move because it has more force.
Materials: Toy car, tape, ruler, plastic track, 50 ounce weight, and 100 ounce weight.
1. Car 23.1oc (block 1 1/4in)
2. Car with 50 once 73.3( block 4in)
3. Car with 100 once 123.6 (block 6 ¼in)
Variables IV: weight of the car
DV: the length the block has been pushed
CV: Block, track, length of track, units of measurement, ruler, weights, and scale
Procedure: 1. Gather materials
2. Setup Track
3. Put block in position
4. Weigh car
5. Run it down the track
6. Measure distance block was pushed
7. Repeat steps 2-6
8. Weigh car with 50 ounce weight
9. Repeat 2-6
10. Weigh the car with 100 ounce weight
11. Repeat 2-6
12. Record data
Proficiency #2
Problem: Does the surface that the car rides on affect the speed it takes to ride down the ramp?
Hypothesis: I think that if the surface of the ramp is rougher it will slow the wheels down and there on affecting the speed it takes to ride down.
Materials:
Wood sheet
Sand paper
Toy car
2 books
Stop watch
Variables
CV: toy car, wood sheet, sand paper, 2 books, stop watch
Procedure-
1. Gather all materials
2. Set up track
3. Let car go down Sand paper and time with stop watch
4. Record data
5. Repeat steps 3 and 4 two more times
6. Let car go down Wooden sheet and time with stop watch
7. Record data
8. Repeat steps 6 and 7 two more times
9. Conclude
10. Clean up
Trial 1 Trial 2 Trial 3
Wood Sheet 0.48 0.34 0.35
Sand paper 0.43 0.46 0.4
Conclusion: My problem was if the surface of the ramp affected the speed and time it took to go down and I said in my Hypothesis yes, and I think the sand paper will take the longest since it is the roughest. I was right since the wood sheet went the fastest all but once.
Proficiency #3
Problem
How will the mass of a hot wheels car affect the rate of deceleration?
Hypotheses:
I think that if the car is heavier the more deceleration because there is more friction
Materials
Hot wheels car
Timer
Track
Scale
Procedure
1. Gather all materials
2. Set up track
3. Put the first car and run it down the track
4. Time how long it took for car to go down track
5. Repeat steps 3-4 with the second car
6. Repeat again steps 3-4 with third car
7. Repeat same order 3-6 for two more trials
8. Record data
9. Make a data table
10. Record data
11. Conclude
12. Clean up
Variables
CV-Height on track
IV- The car going down track
DV-Different mass of cars
Trial 1 Trial 2 Trial 3
Car 1 0.57 0.62 0.64
Car 2 1.01 0.92 0.92
Car 3 0.68 0.71 0.68
Conclusion
In conclusion the problem was how will the mass of a hot wheels car affect the rate of deceleration? And I thought that the heavier the car is the more deceleration it has in friction. How will the mass of a hot wheels car affect the rate of deceleration?
Rube Goldberg
1. First we will have a wheel and axle that will force the golf back (mechanical energy)
2. That will then go down an inclined plain into a cup connected to another wheel and axle
3. That will make another cup connected rise up on the other side raise up with another light ball in it (mechanic energy).
4. Ball rolls down inclined plane and then drops onto another inclined plane
5. Which then goes down a tube that hits the toothpaste(kinetic energy)
Proficiency #5
Wind Energy
There are many different types of energy out in the world and one of those energies is wind energy. Wind energy is caused by the uneven heating of the atmosphere by the sun, the irregularities of the earth's surface, and rotation of the earth. Energies are meant to be used in different ways most are used in our everyday life. Wind energy is no exception either, we use this type of energy a lot and for many different purposes.
The words “Wind energy” or “Wind Power” explain the process by which the wind is used to generate mechanical power of electricity. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for certain tasks (wind mills or pumping water) or a generator can convert this mechanical power into electricity to power homes, stores, and/or other types of business like places.
The great thing about wind energy is that it is a free resource so no matter how much you use today we will have the same amount of supply in the future. This type of energy is also a non-polluting, clean, electricity. Even though the cost of wind power has lowered over the time, the technology requires a higher initial investment than fossil-fueled generator. Roughly 80% of the cost is the machinery used for wind energy.
In conclusion, I have stated all of the good statistics about wind energy but not even this energy is perfect it has some issues. For example the cost for the machinery is horrible and there were incidents of animals such as birds and bats flying into rotors which would kill them. But newer technology development has greatly reduced this incident. So there are some interesting facts about one of the energies out there.
