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17 Cards in this Set
- Front
- Back
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A car travels 240 km in 3 hours. What is the speed of the car during that time?
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80 km/hr
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The speed of a cruise ship is 50 km/hr. How far will the ship travel in 14 hours?
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700 km
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True or False? Speed is velocity.
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false
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change in position in a certain amount of time
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motion
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the length between two places
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distance
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rate at which an object moves
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speed
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distance/time = ?
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speed
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speed that does not change
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constant speed
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the distance-time graph for constants speed is __________
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a straight line
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description of speed in a given direction
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velocity
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velocities in the __________ direction are added together
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same
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velocities in __________ directions are subtracted
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opposite
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background of point that is assumed to be stationary and is used for comparison when motion is described
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frame of reference
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What is the most common frame of reference?
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Earth
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True or False? No single frame of reference is "correct" in any situation.
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true
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rate of change in velocity
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acceleration
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speed is measured in...
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m/s
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