Question detail
Sketch a velocity-time graph for an object that accelerates uniformly from rest to a speed of 20 m/s over a time period of 5 seconds.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Forces and motion
Question
Sketch a velocity-time graph for an object that accelerates uniformly from rest to a speed of 20 m/s over a time period of 5 seconds.
Answer
The velocity-time graph will be a straight line starting from the origin (0,0) and ending at the point (5, 20). The line will have a positive gradient, indicating constant acceleration.
Explanation
This question tests the understanding of how to represent uniform acceleration graphically. A correct sketch demonstrates knowledge of the relationship between velocity, time, and acceleration.
Common mistake
Common Mistake in Sketching Velocity-Time Graphs
Students often fail to accurately represent the acceleration or deceleration in their velocity-time graphs, leading to incorrect slopes.
To fix this, students should carefully analyze the motion described and ensure that the slope of the graph reflects the correct acceleration or deceleration, using a ruler to maintain straight lines.
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