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University of Alabama *
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Mechanical Engineering
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Apr 3, 2024
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Name: Date: School: Facilitator: 6.05 Forces Lab To complete this virtual lab, first open the PhET Forces and Motions Interactive found linked on the Task page. Follow the directions below for each section to complete this virtual activity.
Part 1: Net Force
Open the first section of the PhET Force and Motions Interactive: Net Forces. You will use this interactive to set up two tug of war games. Before you set up your games, click the boxes to show the “Sum of Forces” and “Values” at the top of the page.
Drag a blue team and a red team onto the rope. Set up your team in such a way that the forces on each side are not equal. Record the total force values for each team below:
1.
Force Value for Red Team: 350 N
2.
Force Value for Blue Team: 150 N
Now click “GO.” Record what happens below and answer the questions about the sum of forces.
3.
What happened in the tug of war game? The blue team won
.
4.
What was the sum of the forces in your tug of war game? 200 N
a.
What direction was this force in? left
Now drag another blue team and a red team onto the rope. Set up your team in such a way that the forces on each side are equal. Record the total force values for each team below:
1.
Force Value for Red Team: 100 N
2.
Force Value for Blue Team
100 N
Now click “GO.” Record what happens below and answer the questions about the sum of forces.
3.
What happened in the tug of war game? It was a tie game, Nobody took the win
4.
What was the sum of the forces in your tug of war game and what direction was this force in? 0 with no direction
5.
Which tug of war game demonstrated balanced forces?
the second game
6.
Which tug of war game demonstrated unbalanced forces? the firs
t game
Part 2: Net Force
Open the first section of the PhET Force and Motions Interactive: Motion. You will use this interactive to investigate forces and motion. Before you set up your games, click the boxes to show the “Forces”, “Values”, “Masses”, and “Speed” at the top of the page.
Begin by dragging objects onto your skateboard in the middle of the page. You may drag the boxes, refrigerator, or any of the other items or people.
1.
What is the total mass of all the items stacked on your skateboard? 250 kg
Now have your person push against the skateboard with each of the applied forces listed below and record the Speed at which the skateboard moves (Hint: After you record the speed
you can pause the skateboard and set a new applied force).
Trial Applied Force
Speed of Skateboard
1
50 N
the speed increase very slowly 2
100 N
The speed increases faster than 50 N of force, but still very slow. 3
400 N
With more force applied, the speed increases much more rapidly.
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www
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Is able to construct a
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Missing
No representation is
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Surface type =
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. Then click to start and
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- 1) A low-friction cart is placed between two identical springs attached to rigid walls. If you push the cart against one of the springs and release it, it will continue to move back and forth between the springs. www Draw a force-time graph showing the sum of the horizontal forces exerted on the cart as it moves back and force between the springs. Scientific Abilities Is able to construct a force diagram Missing No representation is constructed. Inadequate FD is constructed but contains major errors such as incorrect mislabeled or not labeled force vectors, length of vectors, wrong direction, extra incorrect vectors are added, or vectors are missing. Needs Improvement FD contains no errors in vectors but lacks a key feature such as labels of forces with two subscripts or vectors are not drawn from single point, or axes are missing. Adequate The diagram contains no errors and each force is labeled so that it is clearly understood what each force represents. Explain whether or not this…arrow_forwardready to move. Pick a mass of the object and one type of surface and record them. Mass (M) Surface type = kg, . Then click to start and keep observing force applied in lab quest. When object shows a kink means ready to move, check value of force, that is the force when it is equal to static friction force. It is the maximum value of force that appears in the screen and graph as maximum value of force. Record its value from graph. Fs (static max) = _ N Keep looking the lab quest and see when the value of force drops from its maximum value,arrow_forwardAstronomy Question: Read the questions slowly and answer with precise and long details about each of the questions. Answer correctly and follow my guidelines for a long and wonderful review after results. Your target/main observable galaxy is the whirlpool galaxy. Target: Whirlpool Galaxy Object Type: Galaxy Distance: 37 million light-years Constellation: Canes Venatici. DO NOT COPY AND PASTE OTHER WORK OR THINGS FROM THE INTERNET, use your own words.Provide refernces if used In 500 words, please explain the relevance of this object to the physics course material in university andits importance to astronomy. (Some question you may seek to answer are: What beyond the objectitself is learned by studying this class of objects? What sorts of telescopes and observations would beneeded for more detailed, broader reaching studies of this source and objects of its nature?)arrow_forward
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