If an object moves along a straight line, the distance travelled can be represented by a distance-time graph. In a distance-time graph, the gradient of the line is equal to the speed of the object. The greater the gradient (and the steeper the line) the faster the object is moving.
What does a straight line in a graph signify?
Straight line graph signifies that the changes in the values of the quantities represented on the graph are proportional to each other, e.g., in simple pendulum, the straight line graph means l is proportional to T2, or l/T2 is constant. Slope of the straight line gives the value of the constant of proportionality.
What does a horizontal line mean on a distance time graph?
A horizontal line on a distance-time graph shows that the object is stationary (not moving because the distance does not change) A sloping line on a distance-time graph shows that the object is moving. In a distance-time graph, the slope or gradient of the line is equal to the speed of the object.
What does the horizontal line on a graph mean?
In more simple terms, a horizontal line on any chart is where the y-axis values are equal. If it has been drawn to show a series of highs in the data, a data point moving above the horizontal line would indicate a rise in the y-axis value over recent values in the data sample.
Why does a horizontal line indicate an object has stopped on a distance and time graph?
Velocity tells the speed and direction of a moving object. Acceleration tells us the rate speed or direction changes. … If an object is not moving, a horizontal line is shown on a distance-time graph. Distance Time is increasing to the right, but its distance does not change.
What is a straight horizontal line on a graph called?
Glossary and Terms: Graphs and Lines. Abscissa – The horizontal line, or x-axis, of a graph.
What is a straight line called?
A line is sometimes called a straight line or, more archaically, a right line (Casey 1893), to emphasize that it has no “wiggles” anywhere along its length. … Two lines lying in the same plane that do not intersect one another are said to be parallel lines.
What straight line indicates?
straight line indicate that the motion is uniform or object is at rest.
Is a horizontal line positive or negative?
The slope of a line can be positive, negative, zero, or undefined. A horizontal line has slope zero since it does not rise vertically (i.e. y1 − y2 = 0), while a vertical line has undefined slope since it does not run horizontally (i.e. x1 − x2 = 0). because division by zero is an undefined operation.
What is an example of a horizontal line?
Examples. Look at a wall, and look down to where that wall meets the floor. That intersection is a horizontal line. Other examples of horizontal lines we may see every day are the following: the line separating the sky from the land across a clear plain or the line separating the sky from the water at the beach.
What is the rule for a horizontal line?
A horizontal line is one the goes left-to-right, parallel to the x-axis of the coordinate plane. All points on the line will have the same y-coordinate. In the figure above, drag either point and note that the line is horizontal when they both have the same y-coordinate. A horizontal line has a slope of zero.
What does a horizontal line mean?
A horizontal line is a straight line that is drawn from left to right or right to left and it is parallel to the x-axis in the coordinate plane. In other words, a straight line that has an intercept only on the y-axis, not on the x-axis is called a horizontal line.
What is the difference between a curved line and a straight line on a distance time graph?
‘Straight lines’ on a distance-time graph tell us that the object is travelling at a constant speed. Note that you can think of a stationary object (not moving) as travelling at a constant speed of 0 m/s. … ‘Curved lines’ on a distance time graph indicate that the speed is changing.
Which of the following indicates the horizontal line on a distance time graph of the object?
Explanation: A straight horizontal line on a speed-time graph means that speed is constant. It is not changing over time. A straight line does not mean that the object is not moving!
Is the horizontal line on a graph called?
Thus the horizontal lines in the graph are called the x –axis.
What is the horizontal line at 0 called?
Know why it’s called the horizon? It’s a horizontal line! And just like the horizon, horizontal lines go straight left and right.
