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Notes: Rolling Along. Speed. Speed is defined as a change in position divided by time. Average speed is calculated by dividing the distance an object travels by the time it takes to travel that distance. Speed = Distance/Time. Inertia: Newton’s First Law of Motion.
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Speed • Speed is defined as a change in position divided by time. • Average speed is calculated by dividing the distance an object travels by the time it takes to travel that distance. Speed = Distance/Time
Inertia: Newton’s First Law of Motion • Inertia is a property of matter that makes it resist a change in its motion. • An object at rest will remain at rest if no unbalanced force acts on it. • A moving object will move at a constant speed in a straight line if no unbalanced force acts on it. • The net force on an object is the sum of all forces on the object.
According to Newton's first law, the marble on that bottom ramp should just keep going. And going.
Interactive Website http://science.discovery.com/games-and-interactives/newtons-laws-of-motion-interactive.htm
Kinetic Energy • Kinetic energy is associated with the motion of an object. • The kinetic energy of an object is calculated using the formula: ½ mass x velocity squared
Potential & Kinetic Energy • http://www.energyeducation.tx.gov/energy/section_1/topics/potential_and_kinetic_energy/ This is a fun demonstration of potential & kinetic energy!