Newton's Laws I

Newtons laws i

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Unformatted text preview: Newton's Laws I Objective: To investigate, qualitatively and quantitatively, the motion of an object when acted upon by external forces. Apparatus: Motion sensor, force sensor (2), Pasco track, Pasco cart, masking tape, spring scale, meter stick Introduction You are already familiar with Kinematics which is the study of motion without taking the concepts of force and mass into consideration. In this lab you will find relationships between force, mass and motion; this branch of mechanics is called Dynamics. For these series of experiments, do not take what you have learned from your lecture or textbook for granted - do the experiment and form your own conclusions. Procedure Activity 1 In this activity you'll use the cart, track and a pen to determine a qualitative relationship between an object's direction of motion, its change in motion, and the net force that acts on the object. You'll determine this relationship by examining the cart while it's at rest, in motion, and also while it's in motion but being tapped constantly on one side with a pen. Before you begin, you should decide on which direction you will call (+) and which you will call (-). In the table below, "Motion" is the direction of the cart's motion, "Change in Motion" is the direction the cart is either slowing down or speeding up, and "Net Force" is, you guessed it, the direction of the net force. Fill in the table below with either 0, + or -, depending on whether the quantity listed is zero...
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