Activity 1.1.2A
Procedure
Answer the following questions regarding simple machine systems. Each question requires proper illustration and annotation, including labeling of forces, distances,direction, and unknown values. Illustrations should consist of basic simple machine functional sketches rather than realistic pictorials. Be sure to document all solution steps and proper units.
Answer the following questions regarding simple machine systems. Each question requires proper illustration and annotation, including labeling of forces, distances,direction, and unknown values. Illustrations should consist of basic simple machine functional sketches rather than realistic pictorials. Be sure to document all solution steps and proper units.
Activity 1.1.3A
Procedure
In this activity you will learn about gear ratios and how they affect speed and torque within a system. You will also construct simple and compound gear systems.
In this activity you will learn about gear ratios and how they affect speed and torque within a system. You will also construct simple and compound gear systems.
Activity 1.1.4A
Procedure
In this activity you will learn about belt and pulley systems and sprocket and chain systems. You will calculate ratios of examples of both systems in a lab environment.
In this activity you will learn about belt and pulley systems and sprocket and chain systems. You will calculate ratios of examples of both systems in a lab environment.
Conclusion
1. Automotive engineers design many car engines with timing belts. The timing belts provide vital function to the engine in order to maintain the combustion cycle. What is the specific purpose of a timing belt? Is a timing belt more like a belt and pulley system or more like a chain and sprocket system? Defend your answer.
A: More of a Belt and pulley system seeing as its called a BELT
2. Based on what you know about wheel and axle simple machines, how might you manipulate the size of the axle powering the input pulley or sprocket to harness more speed from the output?
A: making it a bigger or more proportional to the Diameter of the wheel and opposite vice-verse if the wheel is driving the axle
3. When you are climbing a hill on a bike with different speeds, why does it seem like you are pedaling a lot to cover a short distance? What happens if you switch to a higher gear in hopes of not having to pedal as much?
A:when you switch to a higher gear it becomes harder and ans its covering so little because the lower gear is you r power gear and is actually the easiest
1. Automotive engineers design many car engines with timing belts. The timing belts provide vital function to the engine in order to maintain the combustion cycle. What is the specific purpose of a timing belt? Is a timing belt more like a belt and pulley system or more like a chain and sprocket system? Defend your answer.
A: More of a Belt and pulley system seeing as its called a BELT
2. Based on what you know about wheel and axle simple machines, how might you manipulate the size of the axle powering the input pulley or sprocket to harness more speed from the output?
A: making it a bigger or more proportional to the Diameter of the wheel and opposite vice-verse if the wheel is driving the axle
3. When you are climbing a hill on a bike with different speeds, why does it seem like you are pedaling a lot to cover a short distance? What happens if you switch to a higher gear in hopes of not having to pedal as much?
A:when you switch to a higher gear it becomes harder and ans its covering so little because the lower gear is you r power gear and is actually the easiest
Activity 1.1.5A
Procedure
Answer the following questions regarding gear, pulley, and sprocket systems. Eachquestion requires proper illustration and annotation including labeling of forces,distances, direction, and unknown values. Illustrations should consist of basic topview assembly sketches rather than realistic pictorials. Be sure to document all solution steps and proper units.
Answer the following questions regarding gear, pulley, and sprocket systems. Eachquestion requires proper illustration and annotation including labeling of forces,distances, direction, and unknown values. Illustrations should consist of basic topview assembly sketches rather than realistic pictorials. Be sure to document all solution steps and proper units.
Activity 1.2.1
Procedure
In this activity your team of two to three will choose an energy source that interests you. Your team will create two presentation slides about your energy source. Those will be compiled with the other teams’ slides to create a class presentation. Each team will have three to four minutes for their portion of the presentation.
In this activity your team of two to three will choose an energy source that interests you. Your team will create two presentation slides about your energy source. Those will be compiled with the other teams’ slides to create a class presentation. Each team will have three to four minutes for their portion of the presentation.
Conclusion
1. Describe one thing that surprised you about the energy source that you researched and presented.
A: That the USA doesnt have all types of wind energy
2. Describe one thing that surprised you about an energy source that another team presented.
A: This is more about all of them and that they all used a turbine of some sort
3. Describe and defend what you believe to be the most important technological need regarding energy.
A: we need the internet so that the world may stay connected
1. Describe one thing that surprised you about the energy source that you researched and presented.
A: That the USA doesnt have all types of wind energy
2. Describe one thing that surprised you about an energy source that another team presented.
A: This is more about all of them and that they all used a turbine of some sort
3. Describe and defend what you believe to be the most important technological need regarding energy.
A: we need the internet so that the world may stay connected
Activity 1.2.3.
Procedure
This activity will provide you with an introduction to voltage, current, resistance,series circuits, parallel circuits, and Ohm’s Law. Your team will construct circuitsusing an online electricity simulator. You will use a virtual multimeter to measure properties within the circuit.
This activity will provide you with an introduction to voltage, current, resistance,series circuits, parallel circuits, and Ohm’s Law. Your team will construct circuitsusing an online electricity simulator. You will use a virtual multimeter to measure properties within the circuit.
Conclusion
1. Explain the primary difference between a series and a parallel circuit.
A: One can function if a component is taken out the other cannot
2. Explain the difference between the voltage output at the battery and the voltage
across each bulb in the series circuit.
A: It can be different depending on the resistance
3. In a series circuit, explain the relationship between the current at the battery and
each bulb in the circuit.
A: its entirely dependent on the resistors and voltage of the battery
4. Explain the relationship between voltage at the battery and voltage across each
bulb in a parallel circuit.
A: Voltage is constant
5. Explain the relationship between current at the battery and current through each
bulb in the parallel circuit.
A: Current is summed up between the components
6. For the combination circuit, explain the relationship between the voltage output at
the interface and the voltage across the two light bulbs.
A: Its altered
7. For the combination circuit, explain the relationship between the current output at
the battery and the current through each bulb in the parallel circuit.
A: Its altered
1. Explain the primary difference between a series and a parallel circuit.
A: One can function if a component is taken out the other cannot
2. Explain the difference between the voltage output at the battery and the voltage
across each bulb in the series circuit.
A: It can be different depending on the resistance
3. In a series circuit, explain the relationship between the current at the battery and
each bulb in the circuit.
A: its entirely dependent on the resistors and voltage of the battery
4. Explain the relationship between voltage at the battery and voltage across each
bulb in a parallel circuit.
A: Voltage is constant
5. Explain the relationship between current at the battery and current through each
bulb in the parallel circuit.
A: Current is summed up between the components
6. For the combination circuit, explain the relationship between the voltage output at
the interface and the voltage across the two light bulbs.
A: Its altered
7. For the combination circuit, explain the relationship between the current output at
the battery and the current through each bulb in the parallel circuit.
A: Its altered
Activity 1.2.4
Procedure
In this activity you will gain experience applying Ohm’s law and Kirchhoff’s voltage and current laws to circuits in order to gain understanding of circuit requirements and relationships between voltage,current, and resistance.
In this activity you will gain experience applying Ohm’s law and Kirchhoff’s voltage and current laws to circuits in order to gain understanding of circuit requirements and relationships between voltage,current, and resistance.
Conclusion
1. State two rules for the voltage and current in a series circuit.
a. Voltage total can be given if you sum up the voltages
b. Current ""
2. State two rules for the voltage and current in a parallel circuit.
a.Voltage is constant
b.Current is summed up
3. If you remove a single bulb from an inexpensive string of Christmas tree lights, all of the lights in the entire string will go off. Are the bulbs connected in series or parallel? Explain.
A: series
1. State two rules for the voltage and current in a series circuit.
a. Voltage total can be given if you sum up the voltages
b. Current ""
2. State two rules for the voltage and current in a parallel circuit.
a.Voltage is constant
b.Current is summed up
3. If you remove a single bulb from an inexpensive string of Christmas tree lights, all of the lights in the entire string will go off. Are the bulbs connected in series or parallel? Explain.
A: series
Activity 1.3.3.
Procedure
In Activity 1.3.3 you will investigate the effects of work, thermo energy, and energy on a system, as in the case of the room with the door left open.
In Activity 1.3.3 you will investigate the effects of work, thermo energy, and energy on a system, as in the case of the room with the door left open.
Conclusion
NONE
NONE
2.1.2 Beam Deflection
Procedure
This activity will provide you with a better understanding of Moment of Inertia and how it can be used to determine the strength of beams.
This activity will provide you with a better understanding of Moment of Inertia and how it can be used to determine the strength of beams.
1. What is the relationship between moment of inertia and beam deflection?
A:The more inertia the higher the Beam deflection
2. How could you increase the Moment of Inertia (I) of a beam without increasing its cross-sectional area?
A: adding mass
A:The more inertia the higher the Beam deflection
2. How could you increase the Moment of Inertia (I) of a beam without increasing its cross-sectional area?
A: adding mass
2.1.3 FBD
Procedure
In this activity you will practice creating free body diagrams (FBD) in order to evaluate all of the forces interacting with those objects.
In this activity you will practice creating free body diagrams (FBD) in order to evaluate all of the forces interacting with those objects.
Conclusion
1. Why is it important to create free body diagrams?
A: It provides a new way at looking at something
2. Sketch a free body diagram of the person sitting in a car seat as shown below. Which force arrows do you think would be the largest? Why?
A:The largest should be the weight of the person
1. Why is it important to create free body diagrams?
A: It provides a new way at looking at something
2. Sketch a free body diagram of the person sitting in a car seat as shown below. Which force arrows do you think would be the largest? Why?
A:The largest should be the weight of the person
2.1.4 Force Vector
Procedure
In this activity you will calculate force vectors.
In this activity you will calculate force vectors.
Conclusion
1. You and someone else are pulling with forces of equal magnitude. You each pullingat an angle of 25° from the X axis (see top view below). How could you reduce the amount of force each of you must exert?
A: pulling closer together
2. You and someone else are pulling on an object with forces of 50N and 75N respectively. If you are allowed to pull in any direction, what range of values is possible for the magnitude of the resultant force?
A: Any amount
1. You and someone else are pulling with forces of equal magnitude. You each pullingat an angle of 25° from the X axis (see top view below). How could you reduce the amount of force each of you must exert?
A: pulling closer together
2. You and someone else are pulling on an object with forces of 50N and 75N respectively. If you are allowed to pull in any direction, what range of values is possible for the magnitude of the resultant force?
A: Any amount
Activity 2.1.7 Truss Calculations
Procedure
In this activity you will make changes to given trusses to make them statically determinate. You will then solve for the outside forces and forces at each pinned connection of trusses.
In this activity you will make changes to given trusses to make them statically determinate. You will then solve for the outside forces and forces at each pinned connection of trusses.
Conclusion
1. What is the significance of including roller connections rather than pinned connections?
A: To make things statically determinate; stable
2. How does the triangle shape make a truss rigid?
A: Its even and can keep it stable
1. What is the significance of including roller connections rather than pinned connections?
A: To make things statically determinate; stable
2. How does the triangle shape make a truss rigid?
A: Its even and can keep it stable
2.2.2 Manufacturing Processes
Have you ever examined a product and wondered how it was made? Did you consider why the creators chose certain materials for the product? The next time you are in a convenience store, walk back to the refrigerated area and look at the different containers that hold liquid. You will see an amazing variety of shapes and sizes, yet each container is designed to do the same thing – hold a liquid substance.
While many of us wonder why the container was made, few of us consider the importance of how the container was made. Manufacturing processes play a vital role in the production of consumer products.
While many of us wonder why the container was made, few of us consider the importance of how the container was made. Manufacturing processes play a vital role in the production of consumer products.
Activity 2.3.1 Stress vs. Strain Calculations
Procedure
You will learn about physical properties related to strengths of materials and applythis information to solve common engineering problems.
You will learn about physical properties related to strengths of materials and applythis information to solve common engineering problems.
Conclusion
1. Why is it important for engineers to document all calculations?
A: To ensure errors can be found and fixed
2. What information can aid you in selecting the correct formula for solving engineering calculations?
A: Finding the Known variables
3. What is a conversion factor?
A: The the specific fraction used to convert between specific units.
1. Why is it important for engineers to document all calculations?
A: To ensure errors can be found and fixed
2. What information can aid you in selecting the correct formula for solving engineering calculations?
A: Finding the Known variables
3. What is a conversion factor?
A: The the specific fraction used to convert between specific units.
Activity 2.3.2 Tensile Testing (SIM)
Procedure
You will use a tensile test simulation to observe how the test is performed and how the force displacement graph is created during the test. You will perform calculations using the graph to better understand the graph and important data.
You will use a tensile test simulation to observe how the test is performed and how the force displacement graph is created during the test. You will perform calculations using the graph to better understand the graph and important data.
Conclusion
1. Test and observe the graph created when testing cast iron. What does the graph tell you about the hardness of cast iron? Describe an application where the hardness of cast iron would be an advantage.
A: It is very brittle, It might have an advantage on smaller projects that don't require much force
2. Compare the difference in the size and shape of the material if the test is stopped before or after the yield point.
A:Unable to answer due to limited resources
1. Test and observe the graph created when testing cast iron. What does the graph tell you about the hardness of cast iron? Describe an application where the hardness of cast iron would be an advantage.
A: It is very brittle, It might have an advantage on smaller projects that don't require much force
2. Compare the difference in the size and shape of the material if the test is stopped before or after the yield point.
A:Unable to answer due to limited resources
3.1.1
Procedure
In this activity you will use the ROBOTC software to monitor inputs and control outputs. This will allow you to test the behavior of components before writing a program and to use it as a troubleshooting tool for analyzing program performance.
In this activity you will use the ROBOTC software to monitor inputs and control outputs. This will allow you to test the behavior of components before writing a program and to use it as a troubleshooting tool for analyzing program performance.
Conclusion
1. Describe how these motors and sensors may be used.
A: All of them
2. Describe scenarios where the motors or sensors did not respond as you would
predict.
A: When we didn't put at ";" after all the commands
1. Describe how these motors and sensors may be used.
A: All of them
2. Describe scenarios where the motors or sensors did not respond as you would
predict.
A: When we didn't put at ";" after all the commands
3.1.2
Procedure
In this activity you will use ROBOTC to control several outputs.
In this activity you will use ROBOTC to control several outputs.
Conclusion
1. Describe any challenges that you encountered while developing the program.
A: Figuring out the order in which to place things
2. Describe how these outputs might be used in an application.
A: Because it can
1. Describe any challenges that you encountered while developing the program.
A: Figuring out the order in which to place things
2. Describe how these outputs might be used in an application.
A: Because it can
3.1.3
Procedure
In this activity you will use ROBOTC and VEX robotics platform components to sense the environment.
In this activity you will use ROBOTC and VEX robotics platform components to sense the environment.
Conclusion
1. Describe any challenges that you encountered while developing the program.
A: We had trouble with our battery/cortex as well as the potentiometer
2. Describe three applications for the use of sensors that you worked with in this activity.
A:using the potentiometer, optical shift encoder, and line follower.
1. Describe any challenges that you encountered while developing the program.
A: We had trouble with our battery/cortex as well as the potentiometer
2. Describe three applications for the use of sensors that you worked with in this activity.
A:using the potentiometer, optical shift encoder, and line follower.
3.1.4
Procedure
one of the powerful attributes of a computer program is its ability to make decisions.Although it can be argued that only humans are capable of decision making,computers are able to make decisions using criteria. They are able to compare twovalues and determine whether one is larger than the other. They can determine whether a statement is true or false, based on empirical data.
one of the powerful attributes of a computer program is its ability to make decisions.Although it can be argued that only humans are capable of decision making,computers are able to make decisions using criteria. They are able to compare twovalues and determine whether one is larger than the other. They can determine whether a statement is true or false, based on empirical data.
Conclusion
1. Describe any challenges that you encountered while developing the programs.
A: Had trouble turning the flashlight on as well as many compile errors
2. Describe one application each for While loops and If-Else structures.
A:Turning the Flashlight on and off, making the LED flicker for 20 seconds
1. Describe any challenges that you encountered while developing the programs.
A: Had trouble turning the flashlight on as well as many compile errors
2. Describe one application each for While loops and If-Else structures.
A:Turning the Flashlight on and off, making the LED flicker for 20 seconds