The kinematics of uniform circular motion The dynamics of uniform circular motion
PPT on uniforma and non-uniform motion
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Transcript of PPT on uniforma and non-uniform motion
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Power point Power point presentation of presentation of science on science on Uniform and Non Uniform and Non Uniform motion of Uniform motion of an objectan object
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Uniform MotionUniform Motion
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Uniform MotionUniform Motion If an object moves equal distance in equal If an object moves equal distance in equal
interval of time.interval of time. SpeedSpeed: can not be speeding up or slowing down.: can not be speeding up or slowing down. Uniform = “Constant”Uniform = “Constant” Ex :- If an object go to Delhi from Panipat on a Ex :- If an object go to Delhi from Panipat on a
traffic less road. It reaches there in 2 hours by traffic less road. It reaches there in 2 hours by moving with constant speed of 30 km/h. n this moving with constant speed of 30 km/h. n this case object covers equal distance in equal case object covers equal distance in equal interval of time.interval of time.
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Non uniform Non uniform motionmotion
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Non uniform Non uniform motionmotion•If an object covers unequal If an object covers unequal distance in equal interval of time distance in equal interval of time •SpeedSpeed: speed varies.: speed varies.•Non uniform =“variable”Non uniform =“variable”•Ex:- if an object go to Panipat from Ex:- if an object go to Panipat from Delhi. In first hour it is moving with a Delhi. In first hour it is moving with a speed of 50 km/h and in second speed of 50 km/h and in second hour their was to much traffic and it hour their was to much traffic and it moves with a speed of 10km/h. In moves with a speed of 10km/h. In this case object cover unequal this case object cover unequal distance in equal interval of time. distance in equal interval of time.
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SpeedSpeed Rate of change of distance is called speedRate of change of distance is called speed Average speedAverage speed is ratio of total distance is ratio of total distance
and total time taken .and total time taken . Speed = distance ÷ timeSpeed = distance ÷ time Speed is a scalar quantity so it has only Speed is a scalar quantity so it has only
magnitude (a number and units) and does magnitude (a number and units) and does not include direction.not include direction.
Instantaneous speedInstantaneous speed is the speed at a is the speed at a specific instant in time. specific instant in time.
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VelocityVelocity Rate of change of displacement is called Rate of change of displacement is called
velocity .velocity . Velocity is a vector quantity.Velocity is a vector quantity. Velocity has both magnitude and Velocity has both magnitude and
direction. direction. Ex. 56 km/h West OR -9.8 m/s Ex. 56 km/h West OR -9.8 m/s
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Constant and Average Constant and Average VelocityVelocity
When an object travels at the same When an object travels at the same speed and the same direction for a time speed and the same direction for a time interval, it has interval, it has constant velocity.constant velocity.
Average velocity: Average velocity: the displacement of an object divided by the time interval it takes to travel the displacement.
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Speed GraphSpeed Graph
Also called Distance-Time GraphAlso called Distance-Time Graph Distance is on the “y” axis.Distance is on the “y” axis. Time is on the “x” axis.Time is on the “x” axis. The slope of the line (how steep The slope of the line (how steep
it is) is the speed.it is) is the speed.
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Graph shapes of uniform Graph shapes of uniform motionmotion
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Uniform or Non-Uniform?Uniform or Non-Uniform?
Non-uniformNon-uniform
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Uniform or Non-Uniform?Uniform or Non-Uniform?
UniformUniform
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Understand Understand types of types of motion by motion by given videogiven video
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The position-time graph The position-time graph that represents "uniform that represents "uniform motion" is:motion" is:
AA
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Calculate the speed.Calculate the speed.Speed = d/t or rise/runSpeed = d/t or rise/runSpeed = (5000 – 1000) ÷ (200 – 40)Speed = (5000 – 1000) ÷ (200 – 40)Speed = 4000 m ÷ 160 sSpeed = 4000 m ÷ 160 sSpeed = 25m/sSpeed = 25m/s
(40, 1000)
(200, 5000)
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Thank Thank youyou