Experiences for the College Science Major First Semester COPY OR SAVE TO A WORD PROCESSING PROGRAM to fill out and hand in to your instructor Name:________________________Date:___10/12/2014_____________________ On which page of the complete LabPaq manual does The Cycle of Scientific Inquiry figure appear?_page 3__ LABORATORY 1 Work Area: Research and The Scientific Method Exercise 1-1: The Dominant Thumb Experiment: Results: 1. During the background examination of the literature
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experiment‚ the dependence of the acceleration on the two masses was investigated. Introduction Atwood’s Machine is represented schematically to the left. Upon inspection‚ Newton’s Second Law for the system can be derived: For m1: (1) For m2: (2) Solving the (1) for N‚ followed by substitution into (2)‚ yields the following equation: Rearranging terms and solving for a: (3) By using the photogate and the LoggerPro software‚ the acceleration of the system may be determined‚ as
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of a pendulum) THINGS TO REMEMBER... For measuring short intervals of time (when each period is the same)‚ multiple measurements can be taken and then averaged e.g. Period of a pendulum = Time for 10 oscillations / 10 1.2 Speed‚ velocity and acceleration Core • Define speed and calculate speed from total distance / total time Symbol Definition SI unit Vector / Scalar Speed v or u Speed = total distance / total time m/s Scalar • Plot and interpret a speed/time graph or a distance/time graph
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Midterm Review Name: ______________________________ Date: ___________ Circle Period R1 R2 R3 S1 S2 S3 Chapter 1 – About Science Vocabulary: Define each term. Fact: Hypothesis: Law: Theory: Check Concepts: 1. Why is physics the most basic science? 2. Why is mathematics important to science? 3. Is a scientific fact something that is absolute and unchanging? Defend your answer. Chapter 2 – Mechanical Equilibrium Vocabulary: Define each term. Force: Net Force: Vector:
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Experiment 9: Maxwell’s Wheel Introduction: The second lab performed on 2/1/12 involved two investigations concerning Maxwell’s wheel. Maxwell’s wheel is an apparatus that consists of a large disk with a long axle. The disk then bound to a support hanging from above with strings attached to each end of the axle. Maxwell’s wheel is considered to be an important apparatus to investigate physical phenomenon’s because it its ability to combine straight line motion and rotation of a rigid body
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graph of 2 x distance vs. time squared represents acceleration. It represents acceleration‚ because the line shows that the graph is steadily increasing‚ because of its almost constant slope. As a result‚ the slope of the line is constant‚ and so the acceleration is constant. Additionally‚ to determine an experimental value for acceleration one must find velocity‚ time‚ and then calculate your equation. Then‚ calculate gravity by using the acceleration value and divide it by 0.0043. g=
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laboratory rotates at an angular speed of 3 600 rev/min. When switched off‚ it rotates through 50.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge. -226 rad s-2 3. A machine part rotates at an angular speed of 0.60 rad/s; its speed is then increased to 2.2 rad/s at an angular acceleration of 0.70 rad/s2. Find the angle through which the part rotates before reaching this final speed. 3.2 rad 4. A coin with a diameter of 2.40 cm is dropped
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constant speed until acted on again by a larger force that stops it. The second law is Force= mass X acceleration. And the third is all forces act in pairs‚ pretty simple right? Just remember this and the examples and the rest should make more sense. The three laws of motion explain how an object will either stay in motion or what makes it move‚ (law of inertia)‚ Force= mass X acceleration‚ and action and reaction. This essay will basically take the dry basics of the rules and elaborate
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The acceleration is often quoted in multiples of g‚ the standard acceleration due to gravity at the Earth’s surface. This distinction is important because two rotors with different diameters running at the same rotational speed will subject samples to different accelerations. A laboratory centrifuge is a piece of laboratory equipment‚ driven by a motor‚ which spins liquid samples at high
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Instantaneous Velocity = Instantaneous Velocity = magnitude of the instantaneous velocity Acceleration: Rate of change of velocity with time Instantaneous Acceleration = Physics 111 Summary Week 2 1D Kinematics Relax Vector Notation: Direction given by + or – Position: r +x or –x Displacement: Velocity v +v or –v Acceleration a +a or –a Kinematic Equations Solving Kinematic Problems 1. Draw Diagram 2. List
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