Newton’s Laws of Motion Experiments
by SHS Encoder 3 on June 18, 2017
lesson duration of 41 minutes
under General Physics 1
generated on June 18, 2017 at 06:21 pm
Tags: Experiments, Laws of Motion, Newton’s
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Generated: Jun 19,2017 02:21 AM
Newton’s Laws of Motion Experiments
( 2 hours and 41 mins )
Written By: SHS Encoder 3 on July 5, 2016
Subjects: General Physics 1
Tags: Experiments, Laws of Motion, Newton’s
Resources
University Physics with modern Physics
Young, H. D., & Freedman, R. A. (2007). University Physics with modern Physics (12th ed.). Boston, MA: AddisonWesley.
Physics for scientists and engineers
Tipler, P. A., & Mosca, G. (2007). Physics for scientists and engineers.
engineers. London: Macmillan.
Conceptual Physics
Hewitt, P. G. (2007). Conceptual Physics (Vol. 8). Boston, MA: Addison-Wesley.
Physics for scientists and engineers: A strategic approach with modern Physics and mastering Physics
Knight, R. (2007). Physics for scientists and engineers: A strategic approach with modern Physics and mastering
Physics.
Physics. New York: Pearson Education.
Forces and motions: Basics
https://phet.colorado.edu/en/simulation/forces-and-motion-basics
Content Standard
The learners demonstrate an understanding of...
1. Newton’s Law’s of Motion
2. Inertial Reference Frames
3. Action at a distance forces
4. Mass and Weight
5. Types of contact forces: tension, normal force, kinetic and static friction, fluid resistance
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6. Action-Reaction Pairs
7. Free-Body Diagrams
8. Applications of Newton’s Laws to single-body and multibody dynamics
9. Fluid resistance
10. Experiment on forces
11. Problem solving using Newton’s Laws
Performance Standard
The learners are able to solve, using experimental and theoretical approaches, multiconcept, rich-context problems
involving measurement, vectors, motions in 1D, 2D, and 3D, Newton’s Laws, work, energy, center of mass,
momentum, impulse, and collisions
Learning Competencies
The learners plan and execute an experiment involving forces (e.g., force table, friction board, terminal velocity) and
identifying discrepancies between theoretical expectations and experimental results when appropriate
INTRODUCTION 2 mins
Review static and kinetic friction.
1. What is the difference between static and kinetic friction?
2. What is the equation in calculating the static and kinetic friction if you know the coefficient of friction?
MOTIVATION 5 mins
1. Use the Forces and Motion Basics Simulation (Friction button) to show that static friction force increases as the
applied force increases. The box will start to move when the applied force is greater than the maximum static friction
force.
INSTRUCTION/DELIVERY 3 mins
1. Discuss the objectives of the experiment.
2. Show the materials to be used.
3. Distribute the materials to the learners.
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INSTRUCTION/DELIVERY 3 mins
1. Discuss the objectives of the experiment.
2. Show the materials to be used.
3. Distribute the materials to the learners.
INSTRUCTION/DELIVERY 3 mins
1. Discuss the objectives of the experiment.
2. Show the materials to be used.
3. Distribute the materials to the learners.
PRACTICE 30 mins
1. Let the learners perform the experiment.
PRACTICE 30 mins
1. Let the learners perform the experiment.
PRACTICE 30 mins
1. Let the learners perform the experiment.
PRACTICE 30 mins
1. Let the learners perform the experiment.
ENRICHMENT 5 mins
1. If time permits, ask the learners to explore the effect of variables like varying the mass of the wooden block or
varying the surfaces in contact.
ENRICHMENT 5 mins
1. If time permits, ask the learners to explore the effect of variables like varying the mass of the wooden block or
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varying the surfaces in contact.
EVALUATION 15 mins
1. The learners will report to class the results of the experiment. The learners will submit the data sheet and answers
to questions.
Laboratory Manual
Determining the Coefficient of Static and Kinetic Friction
Objectives
At the end of the activity, the learners should be able to:
1. Identify the forces acting on the wooden block;
2. Draw the free-body diagram of the wooden block; and
3. Determine the coefficient of static and kinetic friction between the wooden block and friction board.
Materials
Friction board Wooden block Digital balance Spring balance
Procedure
1. Measure the mass of the wooden block. Record your measurement in the data sheet.
2. Attach the hook of the spring balance to the wooden block.
3. Place the wooden block at the top of the friction board as shown in the figure.
Figure 1: Experimental setup
4. Slowly pull the spring balance, always keeping it parallel to the board.
5. Note the maximum spring scale reading just before the block starts to move. Record this value in Table 1.
6. Conduct two more trials and record the data in Table 1.
7. Pull the spring balance so that the wooden block is moving at constant velocity. Record the spring scale reading in
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Table 2.
8. Conduct two more trials and record the data in Table 2.
DATA SHEET
Mass of the wooden block: ________ kg
Normal force: _______ N
Table 1: Maximum spring balance reading when the block was just about to move
Table 2: Spring balance reading when the block is moving at constant velocity
Table 3: Calculated values
GUIDE FOR ANALYSIS:
1. What are the forces acting on the wooden block?
2. Draw the free-body diagram of the wooden block.
3. Determine the static friction force fs and kinetic friction force fk. Show your calculations here. Record the obtained
value in Table 3.
4. Determine the coefficient of static friction ms and the coefficient of kinetic friction mk. Show your calculations here.
Record the obtained value in Table 3.
5. From the data obtained, which is larger fsor fk ? msor mk? Explain your answers.
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Enrichment Activity
1. Design and perform an experiment to determine the effect of varying the normal force on friction.
2. Design and perform an experiment to determine the effect of varying the area of contact on the magnitude of friction
force.
3. Design and perform an experiment to compare the values of coefficient of static and kinetic friction of different
surfaces in contact.
Download Teaching Guide Book 0 mins
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