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Horizontal Projectile Lab

Last updated almost 3 years ago
18 questions

Question: How do height and initial velocity affect the range and time of a projectile?

1

Create a hypothesis for this experiment by writing a testable answer to the above question in an if/then format.

Use this Simulation and set the settings like the example below:

Change the Height and Initial Speed to match the data table below and use the Blue Measuring tool (Right corner) to take measurements.

Data Table

Clear your path after each launch to keep the screen clean.

4

Fill in the Data Table.

1

What happens to the Range as Height increases? Why?

2

What happens to the Range as Initial Speed increases? Why?

1

What happens to range as mass increases? Why?

1

Launch one more time and watch the Velocity Vectors (components). What happens to the Horizontal Velocity Vector (Green arrow) throughout the launch?

1

Launch on more time and watch the vectors. What happens to the Acceleration Vector (Yellow arrow) throughout the launch?

1

Is there any acceleration in the x direction?

1

How does gravity affect the projectile?

1

What would happen if it were fired on a planet without gravity?

1

How does this compare to the vertical projectile from yesterday?

1

If you were given the range and the time it took to fall, how would you find the initial velocity?

Application


Just like Freefall, this still uses the basic kinematics formulas. The only tricky part is you may need to mix and match to find certain variables.
1

What is the initial velocity of a projectile that has a range (dx) of 2.5 m and landed in 2.6 s?

1

What is the height (dy) this projectile was dropped from?

1

How long did it take for a projectile dropped from 5 m to land?

1

If the initial velocity was 1.8 m/s, what is the range of the projectile?

CER in NoRedInk

Peer Review due: 10-21

Final CER due: 10-25

C = Claim: Statement about the results of the experiments based on the original purpose.
Hypothesis WITHOUT the 'if' and 'then' is a clear specific concise statement that answers the purpose of the lab based on appropriate data that describes the relationship between the dependent and independent variables. At least 2 sentences further clarifying the claim. Must relate to your Hypothesis which relates to the Purpose.
E = Evidence: Evidence/ data/observations that supports the claim. List at least 3 data that supports your claim. Utilize your answers from the appropriate data tables and lab questions. Include the appropriate data from Data Collection and Data Analysis Sections.
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 that could have occurred if this were performed in person. 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 science. Alter “In the lab” to “the evaluation of”
5

I completed my peer review with helpful comments by 10-21 (must leave comments to receive credit)

15

I used comments left and previous knowledge to revise my 2 mini CERs by 10-25