Forces and Motion.docx

Forces and Motion Carlos Zabaleta February 17, 2024 Prof. Irina Golub

Purpose The objective of this laboratory experiment was to anticipate the impact of an external force on the speed of an object and to examine the connection between unbalanced forces and the overall force acting on the object. The phET Stimulator was employed for this purpose. The experiment involved the manipulation of blue and red figures of different sizes to observe how altering their positions affected the direction of the net force. In the second segment, diverse objects with distinct masses were utilized, and their final velocities were measured over a five-second interval.

Introduction A force is something that can push or pull an object, making it move, altering its direction, or changing its shape. Forces are responsible for the motion and changes in the motion of objects. Gravity and magnetic forces serve as examples of forces that operate from a distance, not requiring direct contact with the objects. Another category is contact forces, and in this lab, we focused on tension force, applied force, and frictional force. These applied forces influence how fast an object moves.

Procedure Part I: Net Force 1. Click the boxes "sum of forces" and "values." 2. Place a small blue figure and a small red figure on the rope and observe what the net force is. 3. Place another blue figure on the rope and observe the forces and net force 4. Answer the following questions: How can an equilibrium situation be achieved again? Give two possibilities. 5. Fill in the table with the values of the forces and insert screenshots of each scenario into the table as well. Part I: Constant mass, changing force. 1. Select the motion tab on the simulation. 2. Select all the items in the yellow box in the upper right-hand corner. 3. Choose any item from the bottom left/right boxes and place it on top of the skateboard. 4. Set the "Applied Force" to 50 N and observe the motion of the object for 10-15 seconds. 5. Without changing the item on the skateboard, change the applied force to higher values (100 N, 150 N, 200 N), and observe the motion for the object for at least 10 seconds of each value of applied force. Part II: Constant force, changing mass. 1. Click the "reset" button.

2.) Select all of the items inside the yellow box and remove the crate from the top of the skateboard and place it inside the box. 3.) Place the 40 kg child on top of the skateboard and observe its acceleration within a 5 second time interval. 4. Set the force to 50 N. Stop the motion of the body after 5 seconds by pressing the "pause" button. Observe the speed attained by the body after 5 seconds and record this value in Table 1 as the final velocity for the specific item. 5. Perform the same steps for all the other items in the table. And calculate the mass for each object. Select "reset" every time you start with a new item and click all the items inside the yellow box. The force will remain constant (50 N) for all the items. 6. Compute the acceleration for all the items in the table and record the data.

Data and Evaluation Part I: Net Force 1. Click the boxes “Sum of forces” and “Values” 2. Start by putting a small blue figure and a small red figure on the rope. Observe what the net force is. The net force was equal on both sides, 50 N, and the net force was 0 N, after one small blue figure and one red figure were added.

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help