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YT 12 minutes 27 seconds Step by Step Science Force of Friction and the Inclined Plane Demonstration YT 13 minutes 57 seconds Step by Step Science SI Units; From the Kilogram to the Watt YT 8 minutes 46 seconds Step by Step Science What is a Newton? An Explanation

YT 6 minutes 36 seconds Step by Step Science Momentum (1 of 16) An Explanation YT 8 minutes 50 seconds Step by Step Science Gravitation (17 of 17 ) Conservation of Mechanical Energy, Final Velocity of a Satellite YT 8 minutes 49 seconds Step by Step Science Gravitation (16 of 17) Escape Velocity, An Explanation

YT 13 minutes 43 seconds Step by Step Science Gravitation (15 of 17) Energy Needed to Launch a Satellite into Geosynchronous Orbit YT 7 minutes 52 seconds Step by Step Science Gravitation (14 of 17) Total Mechanical Energy of a Satellite Orbiting Earth YT 6 minutes 29 seconds Step by Step Science Gravitation (13 of 17) Orbital Velocity at the Surface of the Earth

YT 7 minutes 10 seconds Step by Step Science Gravitation (12 of 17) Work Done to Lift an Object into Orbit Around the Earth YT 5 minutes 49 seconds Step by Step Science Gravitation (11 of 17) Gravitational PE of a Object Orbiting the Earth YT 9 minutes 34 seconds Step by Step Science Gravitation (7 of 17) Calculating the Orbital Height of a Satellite Above the Earth

YT 10 minutes 24 seconds Step by Step Science Gravitation (9 of 17) Gravitational PE Far From Earth, the Negative Sign, An Explanation YT 9 minutes 2 seconds Step by Step Science Gravitation (8 of 17) Geosynchronous and Geostationary Orbits YT 7 minutes 21 seconds Step by Step Science Energy, Work & Power (25 of 31) Calculate the Average Power Output of an Accelerating Car

YT 4 minutes 9 seconds Step by Step Science Energy, Work & Power (30 of 31) Comparing the Power Output of Two People YT 2 minutes 16 seconds Step by Step Science Energy, Work & Power (31 of 31) Power Output When Doing a Chin-Up or Pull-Up YT 2 minutes 30 seconds Step by Step Science Energy, Work & Power (26 of 31) Time to Lift Object with Known Mass and Motor Power

YT 2 minutes 53 seconds Step by Step Science Energy, Work & Power (27 of 31) Lifting a Bucket Out of a Well at Constant Velocity YT 2 minutes 58 seconds Step by Step Science Energy, Work & Power (28 of 31) Power, Tower Crane Power Output YT 2 minutes 38 seconds Step by Step Science Energy, Work & Power (29 of 31) Power, Calculate Power Output When Running Up Stairs

YT 9 minutes 53 seconds Step by Step Science Energy, Work & Power (24 of 31) Power, An Explanation YT 6 minutes 26 seconds Step by Step Science Simple Machines (7 of 7) Inclined Plane; Calculating the Work Done, Part 2 YT 7 minutes 42 seconds Step by Step Science Simple Machines (6 of 7) Inclined Plane; Calculating Forces, Distances, MA, Part 1

YT 5 minutes 26 seconds Step by Step Science Simple Machines (5 of 7) Inclined Planes; Defining Forces, Distances and MA YT 10 minutes 32 seconds Step by Step Science Two Dimensional Motion (2 of 4) Worked Example YT 9 minutes 8 seconds Step by Step Science Two Dimensional Motion (1 of 4) An Explanation

YT 9 minutes 28 seconds Step by Step Science Two Dimensional Motion (4 of 4) Horizontal Projection, Worked Example YT 8 minutes 9 seconds Step by Step Science Two Dimensional Motion (3 of 4) Horizontal Projection, An Explanation YT 5 minutes 55 seconds Step by Step Science Physics, Kinematics, Free Fall (10 of 12) Final Velocity at Bottom

YT 8 minutes 22 seconds Step by Step Science Physics, Kinematics, Free Fall (11 of 12) Total Time In the Air YT 5 minutes 13 seconds Step by Step Science Physics, Kinematics, Free Fall (12 of 12) Maximum Height YT 5 minutes 47 seconds Step by Step Science Physics, Kinematics, Free Fall (7 of 12) Initial Velocity for Known Time in the Air

YT 7 minutes 49 seconds Step by Step Science Physics, Kinematics, Free Fall (6 of 12) Total Time In the Air from Known Initial Velocity YT 5 minutes 53 seconds Step by Step Science Physics, Kinematics, Free Fall (8 of 12) Initial Velocity Needed to Reach Known Height YT 5 minutes 58 seconds Step by Step Science Physics, Kinematics, Free Fall (9 of 12) Height Reached from Known Initial Velocity

YT 5 minutes 11 seconds Step by Step Science Physics, Kinematics, Free Fall (3 of 12) Solving for Final Velocity, No. 2 YT 5 minutes 14 seconds Step by Step Science Physics, Kinematics, Free Fall (5 of 12) Solving for Displacement (Distance Fallen) YT 6 minutes 33 seconds Step by Step Science Physics, Kinematics, Free Fall (2 of 12) Solving for Final Velocity, No.1

YT 6 minutes 4 seconds Step by Step Science Physics, Kinematics, Free Fall (4 of 12) Solving for Time to Fall from Known Height YT 10 minutes 31 seconds Step by Step Science Physics, Kinematics (1 of 12) What is Free Fall? An Explanation YT 7 minutes 48 seconds Step by Step Science Physics, Kinematics (6 of 7) 1 D Horizontal Motion, Solve for Time, No. 1

YT 6 minutes 52 seconds Step by Step Science Physics, Kinematics (7 of 7) 1 D Horizontal Motion, Solve for Final Velocity, No. 1 YT 4 minutes 51 seconds Step by Step Science Physics, Kinematic (5 of 7) 1 D Horizontal Motion, Solve for Distance, No. 2 YT 7 minutes 44 seconds Step by Step Science Physics, Kinematic (4 of 7) 1 D Horizontal Motion, Solve for Distance, No. 1

YT 9 minutes 13 seconds Step by Step Science Physics, Kinematics (1 of 7) One Dimensional Horizontal Motion: An Explanation YT 6 minutes 34 seconds Step by Step Science Physics, Kinematics (3 of 7) 1 D Horizontal Motion, Solve for Acceleration, No. 2 YT 7 minutes 9 seconds Step by Step Science Physics, Kinematics (2 of 7) 1 D Horizontal Motion, Solve for Acceleration, No. 1

YT 8 minutes 23 seconds Step by Step Science Physics, Torque (1 of 13) An Explanation YT 5 minutes 2 seconds Step by Step Science Physics, Torque (3 of 13) Balance Beam YT 9 minutes 9 seconds Step by Step Science Physics, Torque (9 of 13) Static Equilibrium, Hanging Sign No. 3

YT 11 minutes 56 seconds Step by Step Science Physics, Torque (11 of 13) Static Equilibrium, Hanging Sign No. 5 YT 10 minutes 23 seconds Step by Step Science Physics, Torque (8 of 13) Static Equilibrium, Hanging Sign No. 2 YT 6 minutes 58 seconds Step by Step Science Physics, Torque (7 of 13) Static Equilibrium, Hanging Sign No. 1

YT 7 minutes 27 seconds Step by Step Science Newton's 2nd Law (20 of 21) Will it Accelerate? Inclined Plane w/o Friction and a Pulley YT 11 minutes 11 seconds Step by Step Science Newton's 2nd Law (21 of 21) Will it Accelerate? Inclined Plane with Friction and a Pulley YT 10 minutes 36 seconds Step by Step Science Newton's 2nd Law (19 of 21) Will it Accelerate? Table with Pulley and Two Masses

YT 8 minutes 20 seconds Step by Step Science Newton's 2nd Law (18 of 21) Will it Accelerate? Inclined Plane and One Mass YT 10 minutes 33 seconds Step by Step Science Newton's 2nd Law (13 of 21) Calculate Acceleration with Friction; Inclined Plane, Pulley, Two Masses YT 13 minutes 17 seconds Step by Step Science Newton's 2nd Law (12 of 21) Calculate Acceleration w/o Friction; Inclined Plane, Pulley, Two Masses

YT 9 minutes 39 seconds Step by Step Science Newton's 2nd Law (11 of 21) Calculating Acceleration with Friction; Table, Pulley, Two Masses YT 7 minutes 44 seconds Step by Step Science Newton's 2nd Law (10 of 21) Calculate Acceleration w/o Friction; Table, Pulley, Two Masses YT 7 minutes 11 seconds Step by Step Science Newton's 2nd Law (9 of 21) Calculate Acceleration with Friction; Inclined Plane, One Mass

YT 8 minutes 36 seconds Step by Step Science Newton's 2nd Law (8 of 21) Calculate Acceleration w/o Friction; Inclined Plane, One Mass YT 8 minutes 36 seconds Step by Step Science Energy, Work & Power (19 of 31) Conservation of Mechanical Energy, An Explanation YT 8 minutes 5 seconds Step by Step Science Energy, Work & Power (20 of 31) Conservation of Mechanical Energy, Calculating the Final Velocity

YT 8 minutes 22 seconds Step by Step Science Energy, Work & Power (21 of 31), Conservation of Mechanical Energy & Final Velocity YT 5 minutes 23 seconds Step by Step Science Energy, Work & Power (3 of 31) Kinetic Energy, Example No. 2 YT 4 minutes 23 seconds Step by Step Science Energy, Work & Power (2 of 31) Kinetic Energy, Example No. 1

YT 5 minutes 28 seconds Step by Step Science Energy, Work & Power (4 of 31) Kinetic Energy, Its Relationship to the Square of the Velocity YT 6 minutes 41 seconds Step by Step Science Energy, Work, & Power, (1 of 31) Kinetic Energy, An Explanation YT 6 minutes 31 seconds Step by Step Science Energy, Work & Power (13 of 31) Calculate the Work Done Carrying an Object Up a Ramp

YT 6 minutes 55 seconds Step by Step Science Energy, Work & Power (16 of 31) Work Energy Principle, An Explanation YT 5 minutes 24 seconds Step by Step Science Energy, Work & Power (23 of 31) Work from the Force vs. Displacement Graph, No. 2 YT 5 minutes 25 seconds Step by Step Science Energy, Work & Power (22 of 31) Work from the Force vs. Displacement Graph, No. 1

YT 5 minutes 56 seconds Step by Step Science Energy, Work & Power (12 of 31) Work Energy Principle, Net Work Done on an Object YT 7 minutes 32 seconds Step by Step Science Energy, Work & Power (11 of 31) Work Energy Principle, Net Work Done on an Object YT 5 minutes 42 seconds Step by Step Science Energy, Work & Power (15 of 31) Positive Work vs. Negative Work for Vertical Motion

YT 8 minutes 40 seconds Step by Step Science Energy, Work & Power (14 of 31) Positive Work vs. Negative Work for Horizontal Motion YT 5 minutes 25 seconds Step by Step Science Energy, Work & Power (10 of 31) Calculate the Work Done by a Non-Horizontal Force YT 3 minutes 54 seconds Step by Step Science Energy, Work & Power (9 of 31) Calculate the Work Done by a Horizontal Force

YT 13 minutes 35 seconds Step by Step Science Energy, Work & Power (8 of 31) Work, An Explanation YT 8 minutes 52 seconds Step by Step Science Projectile Motion, Launched from a Known Height YT 9 minutes 35 seconds Step by Step Science Projectile Motion: Part 2

YT 9 minutes 53 seconds Step by Step Science Motion Graphs (2 of 8) Position vs. Time Graph Part 2, Acceleration YT 7 minutes 19 seconds Step by Step Science Motion Graphs (4 of 8) Velocity vs. Time Graph Part 1 YT 7 minutes 18 seconds Step by Step Science Projectile Motion: Part 1

YT 9 minutes 53 seconds Step by Step Science Speed and Velocity in One Dimension YT 8 minutes 9 seconds Step by Step Science Motion Graphs (8 of 8) Distance and Displacement in One Dimension YT 7 minutes 44 seconds Step by Step Science Scalars vs. Vectors

YT 8 minutes 33 seconds Step by Step Science Free Fall Motion YT 6 minutes 46 seconds Step by Step Science Oil Drop Diagrams YT 7 minutes 56 seconds Step by Step Science Acceleration, An Explanation

YT 8 minutes 32 seconds Step by Step Science Newton's 2nd Law (14 of 21) Free Body Diagrams; An Explanation YT 7 minutes 34 seconds Step by Step Science Newton's 2nd Law (16 of 21) Drawing Free Body Diagrams, Objects with Balanced Forces YT 6 minutes Step by Step Science Newton's 2nd Law (17 of 21) Drawing Free Body Diagrams, Objects with Unbalanced Forces

YT 9 minutes 14 seconds Step by Step Science Motion Graphs (1 of 8) Position vs. Time Graph Part 1, Constant Velocity YT 7 minutes 45 seconds Step by Step Science Motion Graphs (3 of 8) Position vs. Time Graph Part 3, Constant Velocity and Acceleration YT 8 minutes 12 seconds Step by Step Science Motion Graphs (5 of 8) Velocity vs. Time Graph Part 2

YT 4 minutes 55 seconds Step by Step Science What is a force? YT 3 minutes 30 seconds Step by Step Science Inertia: What it is and what it is not? YT 9 minutes 57 seconds Step by Step Science Newton's 2nd Law (7 of 21) Calculating Acceleration of a Atwood Machine

YT 9 minutes 56 seconds Step by Step Science Newton's 2nd Law (6b of 21) The Normal Force, The Ferris Wheel YT 10 minutes Step by Step Science Motion Graphs (6 of 8) Displacement from the Velocity vs. Time Graph YT 9 minutes Step by Step Science Motion Graphs (7 of 8) Calculating Speed & Velocity for One Dimensional Motion

YT 9 minutes 55 seconds Step by Step Science Newton's 2nd Law (6a of 21) The Normal Force, The Elevator YT 13 minutes 43 seconds Step by Step Science Newton's 2nd Law (5 of 21) The Normal Force, An Explanation YT 8 minutes 47 seconds Step by Step Science Newton's 2nd Law (4 of 21) Calculate Acceleration with Friction, Net Force Above the Horizontal

YT 9 minutes 23 seconds Step by Step Science Newton's 2nd Law (3 of 21) Calculate Acceleration w/o Friction, Net Force Above the Horizontal YT 10 minutes 2 seconds Step by Step Science Newton's 2nd Law (2 of 21) Calculate Acceleration with Friction, Net Force Horizontal YT 6 minutes 53 seconds Step by Step Science Newton's 2nd Law (1 of 21) Calculate Acceleration w/o Friction, Net Force Horizontal

YT 8 minutes 47 seconds Step by Step Science Newton's 2nd Law (15 of 21) Free Body Diagrams, One Dimensional Motion YT 5 minutes 52 seconds Step by Step Science Simple Machines (4 of 7) Pulleys; Calculating the Amount of Work Done YT 5 minutes 35 seconds Step by Step Science Simple Machines (1 of 7) Pulleys; Defining Forces, Distances and MA

YT 7 minutes 11 seconds Step by Step Science Simple Machines (3 of 7) Pulleys; Calculating Forces, Distances, MA, Part 2 YT 6 minutes 40 seconds Step by Step Science Simple Machines (2 of 7) Pulleys; Calculating Distances, Forces, MA, Part 1