Physical Science Exam
|The distance traveled by an object divided by the time it takes to travel that distance is called||average speed|
|In order to determine speed, you must know||time and distance|
|What is the speed and velocity is that velocity includes||direction|
|What is the speed of an object at rest?||0 km/h|
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How long does it take for a fly traveling at 9.1 m/s to fly 100.0 m?
|kinetic friction||Static friction is usually greater than|
|11 s||How long does it take for a fly traveling at 9.1 m/s to fly 100.0 m?|
|40 km/h||Find the velocity, in km/h, of a dolphin that is observed swimming 55 m in 5.0 s.|
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What is speed of an object at rest?
Answer: The speed of an object which is at rest is 0 m/s. Answer: The speed of an object which is at rest is 0 m / s .
When an object covers equal distances in equal amounts of time it is moving at a?
|on a velocity/time graph, a line with a negative slope indicates that the object is||slowing down/decreasing speed|
|when an object covers equal distances in equal amounts of time, it is moving at a ______ speed.||constant|
|velocity describes both||speed and direction|
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What happens when a car slows down and velocity changes?
When the car slows down, the speed decreases. The decreasing speed is called negative acceleration. When a car changes direction, it is also accelerating. In the figure to the right, compare the direction of the acceleration to the direction of the velocity.