What does a steep line in a distance time graph show?
A sloping line on a distance-time graph shows that the object is moving. The steeper the line (and the greater the gradient) the faster the object is moving. Calculate the speed of the object represented by the green line in the graph, from 0 to 3 s.
What does a diagonal line rising steeply represent on a distance time graph?
The line on this graph is curving upwards. This shows an increase in speed, since the line is getting steeper: In other words, in a given time, the distance the object moves is change (getting larger). It is accelerating.
What speed is shown as 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. On a distance-time graph, there are no line sloping downwards.
What goes on the Y axis of a distance time graph?
On a distance time graph, the distance will always be the dependent variable on the y- axis. Time is the independent variable and will always be placed on the x-axis. The lines on the graphs can tell you many different things. The slope of a line (steepness) can tell you speed.
What does a straight line on a position time graph represent?
time graph reveals pertinent information about an object’s velocity. For example, a small slope means a small velocity; a negative slope means a negative velocity; a constant slope (straight line) means a constant velocity; a changing slope (curved line) means a changing velocity.
Can you describe the characteristics of a motion graph?
graph. The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. Whatever characteristics the acceleration has, the slope will exhibit the same (and vice versa). If the acceleration is zero, then the slope is zero (i.e., a horizontal line).
Can a body have zero speed but non-zero velocity?
Answer: (a) True. When a body begins to fall freely under gravity, its speed is zero but it has non-zero acceleration of . Speed is the magnitude of velocity and the magnitude of non-zero velocity cannot be zero.
Can a body have constant velocity and variable acceleration?
Acceleration is defined as the rate of change of Velocity. So ofcourse variable acceleration means a variable rate of change of Velocity, so Velocity has to change. Hence it is not possible to have constant velocity at variable acceleration.
Can speed change if velocity is constant?
Motion with Constant Velocity: When an object is moving with constant velocity, it does not change direction nor speed and therefore is represented as a straight line when graphed as distance over time.
What unit is used for velocity?
Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1).