Physics: Pre-AP Projectile Motion Lab Report
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Purpose
The purpose of this lab was to determine how angle and gravity affects velocity and range.
Procedure
Materials
Projectile launcher
Marble
Two measuring sticks
Tin foil
Pencil
Procedure
Set the angle of the projectile launcher to 30 degrees (make sure that the bottom of the launcher is even with the desk).
Put the marble inside the projectile launcher, and using the pencil, push the marble inside until you hear one click.
Retract the lever on the launcher so that the marble launches into the air. Remember where the marble lands, and place a piece of tin foil around the spot where it landed.
Place the measuring sticks in a line so that the placement of the marble can be easily recorded.
Put the marble back into the launcher and push it into the launcher with the pencil until you can hear one click.
Launch the marble and, using the tin foil, find the indentation where the marble landed. Record how far away the marble landed from the launcher.
Repeat steps 1-8 for 45 degrees and 60 degrees.
Data
Trial 30∘ 45∘ 60∘
1 1.215m 1.475m 1.225m
2 1.25m 1.475m 1.22m
3 1.21m 1.44m 1.23m
Calculations
Original Formula: Rearranged Formula:
R=Vₒ^(2)sin2ϴ Vₒ=√ g
Calculations for 30∘
Vₒa = √ = 3.725m/s
Calculations for 45∘
Vₒb = √ = 3.788m/s
Calculations for 60∘
Vₒc = √ = 3.725m/s
Conclusion
After being launched, the marble moved in a parabolic motion. During this motion, the Vx of the marble remained constant, while the Vy of the marble decreased until the very top of the parabola, where it was 0. Arching down the parabola, the Vy increased. Basing off my knowledge of physics, the relationship between a projectile and its angle depends on how large the angle is: the larger the angle, the shorter the distance between the launcher and the landing point. The
Purpose
The purpose of this lab was to determine how angle and gravity affects velocity and range.
Procedure
Materials
Projectile launcher
Marble
Two measuring sticks
Tin foil
Pencil
Procedure
Set the angle of the projectile launcher to 30 degrees (make sure that the bottom of the launcher is even with the desk).
Put the marble inside the projectile launcher, and using the pencil, push the marble inside until you hear one click.
Retract the lever on the launcher so that the marble launches into the air. Remember where the marble lands, and place a piece of tin foil around the spot where it landed.
Place the measuring sticks in a line so that the placement of the marble can be easily recorded.
Put the marble back into the launcher and push it into the launcher with the pencil until you can hear one click.
Launch the marble and, using the tin foil, find the indentation where the marble landed. Record how far away the marble landed from the launcher.
Repeat steps 1-8 for 45 degrees and 60 degrees.
Data
Trial 30∘ 45∘ 60∘
1 1.215m 1.475m 1.225m
2 1.25m 1.475m 1.22m
3 1.21m 1.44m 1.23m
Calculations
Original Formula: Rearranged Formula:
R=Vₒ^(2)sin2ϴ Vₒ=√ g
Calculations for 30∘
Vₒa = √ = 3.725m/s
Calculations for 45∘
Vₒb = √ = 3.788m/s
Calculations for 60∘
Vₒc = √ = 3.725m/s
Conclusion
After being launched, the marble moved in a parabolic motion. During this motion, the Vx of the marble remained constant, while the Vy of the marble decreased until the very top of the parabola, where it was 0. Arching down the parabola, the Vy increased. Basing off my knowledge of physics, the relationship between a projectile and its angle depends on how large the angle is: the larger the angle, the shorter the distance between the launcher and the landing point. The