#Distance vs time graph physics lab series#
#Distance vs time graph physics lab free#

Collect the angular velocity data of the system before (П‰) and after (П‰ЛЉ) the collision. Position the second disc over the screw and practice dropping it onto the first. YouвЂ™ll notice the velocity decreasing gradually. Mount your first aluminum disc to the pulley (same as first section of Part 1). П„ = mr(g вЂ“ О±r)ДЎ3 PART 2 вЂ“ Conversation of Angular Momentum Perform a linear regression on each data set to determine your experimental values for the moments of inertia of the three systems. You will make a plot of П„ vs О± for the three data sets you collected.

Repeat the experiment for the rod and weights (use 20 s collection). Find the masses of the rod and weights then attach them to the sensor.

Repeat the experiment with both aluminum discs attached to the sensor. Repeat the measurement for increasing masses.ДЇind the mass of the second aluminum disc (the one with cork padding). To determine the angular acceleration of the disc, perform a linear fit on the П‰ vs t graph. Wind the large pulley and collect data (5 s) as the mass hanger accelerates the aluminum disc. Make sure the mass hanger is close to but not touching the ground. Attach the mass hanger to the end of the string. Attach a string to the edge of the large pulley on the sensor and hang it over the green pulley. Record the diameter of the large pulley and the mass and diameter of the first aluminum disc. The equation to calculate the angular momentum before and after the collision is: L = I1П‰ = LЛЉ = I1П‰ЛЉ + I2П‰ЛЉД¦ OBJECTIVES Part 1: Collect О± for various П„ (three objects) Experimentally determine I for an object Part 2: Measure П‰ before and after a collision to see how a change in I affects L.

You will measure the angular speed of a rotating disc before (П‰) and after (П‰ЛЉ) a completely inelastic collision. You will measure angular accelerations for different torques Angular speed: П‰ = dОё/dt Angular acceleration: О± = dП‰/dt We use a hanging mass so torque is: П„ = rT (T is tension) For the acceleration of the hanging mass: mg вЂ“ T = ma (a is acceleration of mass) - We solve for T: П„ = rT = mr(g вЂ“ a) = mr(g вЂ“ О±r)ДҐ INTRODUCTION (part 2) Similar to the linear momentum experiment, you will investigate how the angular momentum of a rotating system is affected by a change in the moment of inertia. You will make a plot to graphically determine the moment of inertia.

#Distance vs time graph physics lab series#

You will apply a series of torques to a disc and measure corresponding angular accelerations. torque = moment of inertia Г— angular acceleration I = MR2 / 2ДЈ INTRODUCTION (part 1) We can experimentally determine the moment of inertia of an object by applying a known torque and measuring the angular acceleration.

#Distance vs time graph physics lab free#

For an object that is free to rotate, consider the rotational analogue: П„ = IО± The moment of inertia for a cylinder is given by: where M and R are the mass and the radius of the cylinder. Rotational Dynamics 1st year physics laboratories University of Ottawa Brightspace Lab websiteДў INTRODUCTION Newtonian dynamics tells us that net force is proportional to acceleration F = ma. Which of the following choices correctly represents this quantity written in scientific notation?Д®) 5.74 Г— 10-4 m Yes Below is a list of variables and their corresponding units.Д¬onsider the following relationship: t = sqrt(2x/a).Presentation on theme: '1st year physics laboratories'- Presentation transcript: D) ATT (Angles, Temperature, Time) Which of the following is not a system of units used in measurements?Д®) None of these is a system of units. Which of the following statements is/are true?ДЄ) Physics is the most fundamental of all the branches of science.Д«) Physics is a very mature science, where its fundamental principles have been tested over many centuries and supported by empirical evidence from experimentation.Д¬) Physics provides a framework for explaining the processes of the natural world.Д) Physics research has had a significant impact on the development of new technologies, such as space travel, telecommunications, and medicine.Д®) All of the above statements are true. TERMS IN THIS SET (49) E) All of the above statements are true.