LAB PHY406 Experiment 2 Force AND Motion PDF

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PHYDEGREE OF FOOD SCIENCE AND TECHNOLOGYLABORATARY 2: FORCE AND MOTIONDATE OF SUBMISSION:LECTURE’S NAME: DR ANISZAWATI AZISPREPARED BY:STUDENT’S NAME STUDENT’S ID CLASSNOR FAIRUZ BINTI ABDUL KAHAR 2021454578 AS2461ANORATHIRAH BINTI MAT JAIS 2021835056 AS2461AEXPERIMENT 2TOPIC: Force and motionOBJECT...

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PHY406 DEGREE OF FOOD SCIENCE AND TECHNOLOGY LABORATARY 2: FORCE AND MOTION DATE OF SUBMISSION: LECTURE’S NAME: DR ANISZAWATI AZIS

PREPARED BY: STUDENT’S NAME NOR FAIRUZ BINTI ABDUL KAHAR NORATHIRAH BINTI MAT JAIS

STUDENT’S ID 2021454578 2021835056

CLASS AS2461A AS2461A

EXPERIMENT 2 TOPIC: Force and motion OBJECTIVE:

To investigate the relationship between the net force, acceleration and speed. APPARATUS: 1) PhET simulations

https://phet.colorado.edu/en/simulation/forces-and-motion-basics 2) Paper 3) Pen 4) Calculator THEORY:

Force and motion are fundamental to all matter in the universe. A force is anything that you can push or pull an object. Forces influence objects that are at rest or that are already in motion. Motion is a change in position of a body with respect to time and its reference point. The relation between a force and motion can be explained by Newton’s law. Newton’s analysis of motion in his famous three laws of motion which are: Newton first law of motion: Every object continues in its state of rest, or of uniform velocity in a straight line as long as no net force acts on it. Newton's second law of motion: The acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass. Newton's third law of motion: For every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. PROCEDURE: 1) The PhET Colorado Simulation from the following link was clicked.

https://phet.colorado.edu/en/simulation/forces-and-motion-basics

2) The last tab (acceleration) was chosen. 3) All the display options on right was ticked. The friction was changed to NONE (Figure 1). 4) All the applied force: 50 N, 100 N, 150 N, 200 N, and 250 N was adjusted to find the respective acceleration. The data was tabulated. 5) Next, the applied force was set to be 200 N. 6) The mass: 50 kg, 100 kg, 150 kg, 200 kg, and 250 kg was adjusted to find the respective acceleration. The data was tabulated. 7) After that, all the setting was reset. 8) All the display options on right was ticked. The object is 50 kg. 9) All the applied force: 50 N, 100 N, 150 N, 200 N, and 250 N, was adjusted to find the respective acceleration. The data was tabulated.

Figure 1: Forces and Motion: Basic PhET simulations.

DATA&RESULT: PART 1 m = 120 kg F = ma

1) F = 50 N

2) F = 100 N

3) F = 150 N

4) F = 200 N

5) 250 N

F (N) 50 100 150 200 250

a PhET (ms¯²) 0.42 0.83 1025 1.67 2.08

a calculator (ms¯²) 0.42 0.83 1025 1.67 2.08

PART 2 F = 200 N F = ma

1) m = 50 kg

2) m = 100 kg

3) m = 150 kg

4) m = 200 kg

5) m = 250 kg

m (kg) 50 100 150 200 250

a PhET (ms¯²) 4.00 2.00 1.33 1.00 0.80

a calculator (ms¯²) 4.00 2.00 1.33 1.00 0.80

PART 3 m = 50 kg F = ma Friction: 30 N

1) F = 50 N

2) F= 100 N

3) F = 150 N

4) F= 200 N

5) F= 250 N

F (N) 50 100 150 200 250

a PhET (ms¯²) 0.40 1.40 2.40 3.40 4.40

a calculator (ms¯²) 0.40 1.40 2.40 3.40 4.40

2.5

2

1.5

1

0.5

0

0

50

100

150

Acceleration Vs Force

200

250

300

Acceleration, a (m/s2)

Force, F (N) DISCUSSION: Based on this experiment, the calculation method and PhET simulation showed the same result. When a force is applied on an object, speed an acceleration will appear. Based on the formula of force which is F = ma, its shown that if the forces of an object is increases, the acceleration will increases due to the acceleration is directly proportional to the force. If the mass of an object is increases, the acceleration will decrease because the relationship between mass and acceleration are inversely proportional. As we can see from the graph acceleration (a) versus force (F), the graph showed a straight line, it is because if the acceleration increase the forces also increases. When doing this experiment, we have to make sure that all forces, F and masses, m values are entered correctly in the simulation. We must follow the instruction given step by step to make sure did not get any error and false information during the experiment.

CONCLUSION: The objective is achieved. In this experiment, we can conclude that force is an interaction that can cause a change. Newton’s First law was observed. When the object is pushed with no net force such as friction from the floor, the object maintains a constant velocity in a straight line. Newton’s second law is also observed. It states that external forces can cause objects to accelerate and the amount of acceleration is directly proportional to the net force acting on the objects and inversely proportional to the mass of objects.

REFERENCES: 1.Heidl,M.Force&Power-What actually are they?.Retrived September 24,2018 from https://blog.wika.com/knowhow/force-power-what-actually-are-they/

2.Canoly,J.Physics-Blog.Retrived January 24,2020 from https://www.joliecanoli.com/blog/tag/physics...