After you submit you will not be able to edit your answers! This is essentially a test, just one that you can work with your lab group on. I will not be able to give confirmation on if an answer is correct, just guidance to better understanding the question.
After you submit you will not be able to edit your answers! This is essentially a test, just one that you can work with your lab group on. I will not be able to give confirmation on if an answer is correct, just guidance to better understanding the question.
Purpose: To determine the velocity of a horizontal projectile and predict the distance that a marble will travel horizontally before striking the floor when launched horizontally.
Using the materials offered and evaluating the purpose above please write the materials, procedure and draw a diagram of your experiment.
2
1
2
7
Question 4
4.
Link to google sheets: Paste a copy of your data here.
17
Question 5
5.
Paste a copy of your calculation data table here.
Part I: Data Analysis Graph
Graph the horizontal distance vs time to determine the Average Horizontal Velocity of the projectile
Check your graph
- Is the title specific including the dependent variable and the independent variable?
- Are the axis labeled both with the variable and the unit?
- Are the axis labeled by values from least to greatest data points with a proper scale?
- Do the data points cover the entire graph provided?
- Does the Best Fit Line represent the expected relationship?
7
3
Part III Analysis
Question 8
8.
Gravitational Potential energy should be __________ the final Kinetic energy of the object at the bottom of the drop.
Question 9
9.
Question 10
10.
Question 11
11.
Would a projectile launched with a greater horizontal velocity affect the time of flight? Explain
Question 12
12.
Would a greater horizontal velocity affect the horizontal distance traveled? Explain.
Question 13
13.
Would a projectile launch with a greater angle affect the range distance? Explain.
Question 14
14.
Question 15
15.
What was the horizontal velocity of the Marble as it exits the Marble Launcher when dropped from a 2 meter height? (see your data)
Question 16
16.
What is the initial vertical velocity of the Marble as it exits a horizontal Marble Launcher when dropped from a 2 meter height?
Question 17
17.
What is the final vertical velocity of the Marble just before it impacts the ground after being launched from a horizontal Marble Launcher when dropped from a 2 meter height?
Question 18
18.
Question 19
19.
Question 20
20.
30
Question 21
21.
Write your CER here. We are not using No Red Ink (besides as bonus points). This is a major grade so I encourage you to have a peer review your work before submission
Question 1
1.
Hypothesis: Write a proper hypothesis in 'If/Then' statement based on the purpose of the lab
Question 2
2.
Materials:List all materials that were used to complete the lab exercise.
Question 3
3.
Procedure: Write the procedure for the lab using numbered steps. Be clear and concise. Draw a diagram of your set up in the show your work section
Question 6
6.
Paste an image of your graph.
Question 7
7.
Calculate the slope of your best fit line to determine the average velocity of your projectile.
Which of the following heights has the greatest potential energy.
2 meters
3.1 meters
5.1 meters
all have the same gravitational potential energy
After the marble is launched, which height created the greatest Kinetic energy just before the object hits the ground
2 meters
3.1 meters
5.1 meters
all have the same kinetic energy.
The realtionship between time and height is linear.
True
False
Check those that are true for a marble after it is launched from a horizontal marble launcher at a 2 meter height. (neglect air resistance)
during the flight the horizontal velocity increases
during the flight the horizontal velocity decreases
during the flight the horizontal velocity stays the same.
during the flight the vertical velocity increases
during the flight the verical velocity decreases
during the flight the verical velocity stays the same
horizontal acceleration changes during the flight
horizontal acceleration does not change during the flight
horizontal acceleration is zero during the flight
vertical acceleration changes during the flight
vertical acceleration does not change during the flight
vertical acceleration is zero during the flight
If a baseball is launched through a similar launcher at the same height as a marble. Gravitational potential energy for the baseball is
greater than the marble
less than the marble
is the same as it is for the marble
If a baseball is launched through a similar launcher at the same height as a marble. The baseball's kinetic energy just before impact is
greater than the marble
less than the marble
is the same as it is for the marble
Write a 3 paragraph CER Conclusion on a separate sheet of paper.
C = Claim: Statement about the results of the experiments based on the original purpose.
Must relate to your Hypothesis which relates to the Purpose.
Full hypothesis omitting the ‘if’ and ‘then’
based on appropriate data that describes the relationship between the dependent and independent variables.
Define all terms, variables, concepts, and relationships.
Do not include data or conclusions.
Explain the lab without including all details of the procedure.
E = Evidence: Evidence/ data/observations that supports the claim.
List ALL data that supports your claim. Include 3 ordered pairs that illustrate the trends the graph illustrates; Utilize your answers from the appropriate data tables and lab questions.
Include 3 ordered pair data points and appropriate data from the Data Collection and Data Analysis Sections.
Explain the trends in the data without listing reasoning or a conclusion.
R = Reasoning: Use reasoning to link your evidence to your data.
Clearly explain how or why the evidence supports the claim. justifying the link of the scientific principles of the claim to the evidence.
List at least 3 sources of error only 1 of which can be human source of error.
Utilize your answers from the appropriate post lab questions.
Proof Read!
Does this make sense to someone that has not taken this class?
Did you clearly illustrate your point?
Can your conclusion stand alone and give a clear view of the lab conclusions?
No pronouns! Be specific. Alter “it is rolling” to “The ball is rolling”
Present tense only! Science is timeless. No past or future tense. “We measured the distance” to “the distance is measured”
Do not reference the lab. Reference only the scientific principles. Alter “In the lab” to “the evaluation of.”
Shared conclusions will split the grade with all common conclusions.
