Speed of Motion

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What is the definition of speed in motion?
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Speed is the distance traveled per unit of time.
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Which equation is used to calculate speed?
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Speed = Distance / Time.
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What are the SI units for speed?
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The SI unit for speed is meters per second (m/s).
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How does speed differ from velocity?
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Speed is a scalar quantity indicating how fast an object is moving, while velocity is a vector that describes the speed and direction of motion.
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What does constant speed mean in terms of motion?
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Constant speed means that an object covers equal distances in equal intervals of time.
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What is average speed?
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Average speed is the total distance traveled divided by the total time taken.
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How is instantaneous speed different from average speed?
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Instantaneous speed is the speed of an object at a particular moment, while average speed is measured over a total trip.
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What happens to speed in uniform circular motion?
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In uniform circular motion, speed remains constant, but the direction changes continuously.
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What is the speed of light in a vacuum?
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The speed of light in a vacuum is approximately 299,792,458 meters per second.
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How does speed affect kinetic energy?
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Kinetic energy increases with the square of speed, meaning if the speed doubles, the kinetic energy increases by four times.
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What impact does friction have on speed during motion?
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Friction opposes motion, which can reduce the speed of an object.
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How do you calculate the speed of a car that traveled 150 km in 3 hours?
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Speed = Distance / Time = 150 km / 3 hours = 50 km/h.
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What is non-uniform speed?
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Non-uniform speed occurs when an object covers unequal distances in equal intervals of time.
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In a distance-time graph, what does a steeper slope indicate?
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A steeper slope indicates a higher speed.
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What is the relationship between speed and velocity in straight-line motion?
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In straight-line motion, speed and the magnitude of velocity are the same.
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