# PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 1.

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PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 1 Puzzler: A light bulb in a desk lamp is turned on and off by exactly one of three simple switches. The switches are located in a remote room, such that one can not see the desk lamp from the location of the switches. On and off positions of each switch are correctly labeled. How can you determine which switch controls the desk lamp if you are allowed to flip the switches any number of times, but are allowed to visit the room with the desk lamp only once? Answer “1” if you know the solution. Answer “2” if you give up. credit: Prof. Henry Greenside, Duke University, http://www.phy.duke.edu/~hsg/

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 2 ANNOUNCEMENTS

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 3 1 of 3 Starting from a position of 1 m along the x axis, a person stands still, then moves away from the origin slowly and steadily, then approaches the origin quickly and steadily. The position vs. time graph that best represents the motion described is: x t 1 x t 2 x t 3 x t 4

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 4 2 of 3 Starting from a position of 1 m along the x axis, a person stands still, then moves away from the origin slowly and steadily, then approaches the origin quickly and steadily. The velocity vs. time graph that best represents the motion described is: vxvx t 1 vxvx t 2 vxvx t 3 vxvx t 4

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 5 3 of 3 A graph of the position vs. time of a body is shown. At which point does the body have the greatest velocity? x t 1 2 3 4

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 6 ANNOUNCEMENTS

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 7

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 8

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 9

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 10

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 11 1 of 3 Starting from a position of 1 m along the x axis, a person stands still, then moves away from the origin slowly and steadily, then approaches the origin quickly and steadily. The position vs. time graph that best represents the motion described is: x t 1 x t 2 x t 3 x t 4

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 12 2 of 3 Starting from a position of 1 m along the x axis, a person stands still, then moves away from the origin slowly and steadily, then approaches the origin quickly and steadily. The velocity vs. time graph that best represents the motion described is: vxvx t 1 vxvx t 2 vxvx t 3 vxvx t 4

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 13 3 of 3 A graph of the position vs. time of a body is shown. At which point does the body have the greatest velocity? x t 1 2 3 4

PHYS-1600/2000PHYS-1600/2000 I2 Graphing Constant Velocity MotionNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 14 14141414 25252525 3333 PROJECTION SCREEN HAND IN TODAY’S ACTIVITY SHEETS 6666

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