Lab Manual 2005

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$Sample Math Placement Test$

$Y:\How to solve 2 dimension relative velocity problems.wpd$

3. Can you rewrite the equation from the previous section (question 3), to take the angle ofaction into account?Part 3Purpose: In the previous experiment we developed the notion of torque as the product of aforce perpendicular to a lever and the length of the lever arm. We did this by keeping alever balanced, i.e., no rotation around the pivot. That is the clockwise torque equalled thecounter clockwise torque. In part 3 we explore this aspect of equilibrium by setting up asystem with an unbalanced lever and then calculating the total torque acting on it.Materials:1 metre stick, a lever clamp without stirrup, 2 clamp holders with stirrups, triplebeam balance, hanging masses and a lever stand.Procedure:• Place the lever clamp without stirrup on the 60cm mark of the metre stick and then placeit in the lever stand.→ Provide a controlled torque by placing a 200g mass at 20cm from thepivot, on the short side.→ Determine where, on the long side, a 100g mass would have to be placed to balance themetre stick.• Make a detailed drawing of your balanced lever.• Calculate and tabulate all clockwise and counter-clockwise torque around the pivot.(Note that a combined mass for the weight and stirrup must be used for all calculations.)Are the clockwise and counterclockwise torques balanced? If not, why?- 60 -
Analysis:1. Center of gravity is the notion that on 3-D objects gravity acts on a point deep inside. Yourinstructor can show you how to find the center of gravity. Find and record the center ofgravity.2. Calculate the torque caused by the stick itself. Does this account for the discrepancy?3. Make a detailed drawing of your balanced lever including the correction for the discrepancy.Conclusion:Briefly sum up the results of this lab.State how the angle at which force is applied influences the torque.Identify the component of force which causes rotation.State the conditions of rigid body equilibrium.Were there any possible sources of error in this experiment?- 61 -
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Data AnalysisSituation: This is an
Page 3 and 4:
Part 2 (Use Data Set 2)1. Identify
Page 5 and 6:
Kinematics(ULV)Situation: Consider
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7. Calculate the area under the vel
Page 9 and 10: Kinematics(ULA)Situation: Consider
Page 11 and 12: 7. What does the area represent?8.
Page 13 and 14: Projectile SimulationSituation: Pro
Page 15 and 16: DATADot # Time (s) Horizontalx (m)0
Page 17 and 18: 10. What is the velocity at 2.0s ?
Page 19 and 20: Relative Velocity SimulationSituati
Page 21 and 22: → It is also convenient to have v
Page 23 and 24: 4. Considering delta notation, dete
Page 25 and 26: Analysis:1. What does the slope of
Page 27 and 28: Constant Net Force ModelSituation:
Page 29 and 30: Part 1: Vary the force applied whil
Page 31 and 32: 4. According to 3b what are the uni
Page 34 and 35: Materials:Purpose:A force sensor, w
Page 36 and 37: 7. Given that two objects of equal
Page 38 and 39: Part 1: Varying the mass.• Enter
Page 40 and 41: Part 3: Varying the radius.• Ente
Page 42 and 43: 1. A 25.0 kg child on a merry-go-ro
Page 44 and 45: These concepts are merely an outgro
Page 46 and 47: Part 2Procedure: Collisions between
Page 48 and 49: Part 3Procedure: Referring to the c
Page 50 and 51: 2. As a ball falls toward earth, it
Page 52 and 53: →Run the experiment to collect da
Page 54 and 55: → Verify Conservation of Energy w
Page 56 and 57: →Locate, on the track, each posit
Page 58 and 59: • We need to provide a “control
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Lab Manual 2005

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