SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Flat line
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Horizontal line
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Positive Slope
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Downhill line
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Detailed explanation-1: -If an object is not moving, the distance-time graph results in a horizontal line which shows that the object is at rest.
Detailed explanation-2: -On a distance-time graph, a sloping line indicates that the object is moving. The slope or gradient of the line in a distance-time graph equals the speed of the object. The faster the object moves, the steeper the line (and the greater the gradient).
Detailed explanation-3: -An upward slope indicates positive acceleration; this means the object is speeding up. A downward slope indicates negative acceleration, or deceleration, meaning the object is slowing down. At zero acceleration, the object is moving at constant velocity.
Detailed explanation-4: -Constant Velocity versus Changing Velocity Note that a motion described as a constant, positive velocity results in a line of zero slope (a horizontal line has zero slope) when plotted as a velocity-time graph.