PPT-Measurements using Atom Free Fall

Mark Kasevich Stanford Physics Prof Physics and Applied Physics AOSense Inc Consulting Chief Scientist Youngs double slit with atoms Youngs 2 slit with Helium atoms Slits Interference fringes. (seconds)(feet) Physics. Date:. Engagement. Why is easy to step off a curb, but very scary (and dangerous) to step off the top of building?. Objectives. Describe . the motion of an object in free fall and how it is different from motion we have previously studied. Galileo increased the inclination of inclined planes.. Steeper inclines gave greater accelerations. . When the incline was vertical, acceleration was max, same as that of the falling object.. When air resistance was negligible, all objects fell with the same unchanging acceleration.. 3. Acceleration and Free Fall. Acceleration. The changing of an object’s velocity over time.. Average Acceleration. SI Unit: m/s. 2. Vector Quantity.  . Acceleration. When velocity and acceleration are in the same direction, the speed of the object increases with time.. Vector calculations. Free Fall. Defined:. Any object who’s acceleration is caused by gravity. Therefore:. Acceleration . = . 9.8 m/s. 2. Velocity will . depend on how far an object has traveled. Velocity is constantly increasing. Unit 2B: Motion – Part 6. Free Fall. Objects whose only acceleration is due to gravity are in . free fall. .. Theoretically, objects in free fall continue to accelerate as long as they are falling.. Atoms, Orbitals & Bonding Topics:. Very quick history of chemistry…. What is organic chemistry?. Atomic models: nuclear to quantum. All . about . orbitals. How . orbitals fill: electron . configuration. Ghost Sound Figment sounds Illus V,S,M 1 a Close Noise of 4humans/lvl 1 rnd/lvl (D) Will dsblf - 235 Jump +10 jump checks,+20/5th, +30/9th TransV,S,M 1 a Touch One creature 1 min/lvl (D) Will negs Ye or . Gravity is making me do it!!. What is . free fall?. Free Fall is the motion of the body when . air resistance is negligible. . and the action can be considered . due to gravity alone. .. Free fall Video. [A] Problem: You drop your cell phone while in the bathroom in front of the mirror while the water is running in the sink below. If you are 0.45 meters above the sink, how long do you have before your cell phone is a . 2. Ozone – Two Faces. Troposphere – Bad Ozone. Pollution . Photochemical smog. . Eye irritant. Stratosphere – Good Ozone. Blocks some UV radiation. Hole caused by depletion due. to ODC’s . An analysis of the first five years of the college access initiative. Brian Jones. Director of Admissions. Carl . Stange. Director of Admissions. College Knowledge Month History. 2011 – College App Week - 17 pilot sites. Place on your desk:. *Calculator. *. Orange. homework chart . *. Merrily We Roll Along Lab. 1) What force on earth causes falling objects fall downward?. 2) True or False: The less steep the incline, the smaller the acceleration.. Imagine there is no air resistance and that gravity is the only thing affecting a falling object. . An object moving under the influence of the gravitational force only is said to be in . free fall. .