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motion, in physics, change with time of the position or orientation of a body. Motion along a line or a curve is called translation. Motion that changes the orientation of a body is called rotation.
- Translation
Other articles where translation is discussed: motion: …or a...
- Relative Motion
Other articles where relative motion is discussed:...
- Phase
phase, in mechanics of vibrations, the fraction of a period...
- Students
In science, however, motion is defined as the change of the...
- Rotation
Other articles where rotation is discussed: asteroid:...
- Action
action, in theoretical physics, an abstract quantity that...
- Kids
But motion has a special meaning in science. In science,...
- Reference Frame
reference frame, in dynamics, system of graduated lines...
- Translation
Take a look at the curve to the right. No matter what value the x variable takes on the curve, the y variable stays the same. This is a classic example of a relationship called independence. Two quantities are independent if one has no effect on the other. The curve is a horizontal, straight line represented by the general form equation… y = k
Sep 9, 2023 · Concave and convex describe the shape of a curve. Remember that “concave” resembles a cave! The terms “concave” and “convex” describe the curvature of objects or mathematical functions. They’re ubiquitous in a range of disciplines, including optics, mathematics, engineering, and everyday life.
an object undergoing constant acceleration traces a portion of a parabola. average velocity is the slope of the straight line connecting the endpoints of a curve. instantaneous velocity is the slope of the line tangent to a curve at any point. positive slope implies motion in the positive direction.
- Constant Velocity Versus Changing Velocity
- The Importance of Slope
- Positive Velocity Versus Negative Velocity
- Speeding Up Versus Slowing Down
- Check Your Understanding
Consider a car moving with a constant, rightward (+) velocity - say of +10 m/s. As learned in an earlier lesson, a car moving with a constant velocity is a car with zero acceleration. If the velocity-time data for such a car were graphed, then the resulting graph would look like the graph at the right. Note that a motion described as a constant, po...
The shapes of the velocity vs. time graphs for these two basic types of motion - constant velocity motion and accelerated motion (i.e., changing velocity) - reveal an important principle. The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. If the acceleration is zero,...
The answers to these questions hinge on one's ability to read a graph. Since the graph is a velocity-time graph, the velocity would be positive whenever the line lies in the positive region (above the x-axis) of the graph. Similarly, the velocity would be negative whenever the line lies in the negative region (below the x-axis) of the graph. As lea...
Now how can one tell if the object is speeding up or slowing down? Speeding up means that the magnitude (or numerical value) of the velocity is getting large. For instance, an object with a velocity changing from +3 m/s to + 9 m/s is speeding up. Similarly, an object with a velocity changing from -3 m/s to -9 m/s is also speeding up. In each case, ...
1. Consider the graph at the right. The object whose motion is represented by this graph is ... (include all that are true): 1. moving in the positive direction. 2. moving with a constant velocity. 3. moving with a negative velocity. 4. slowing down. 5. changing directions. 6. speeding up. 7. moving with a positive acceleration. 8. moving with a co...
It’s physics! Surprisingly, one of the keys to understanding curveballs is a formula normally used to explain the flow of fluids. Bernoulli’s equation considers velocity, pressure, and height.
The graph of position versus time in Figure 2.13 is a curve rather than a straight line. The slope of the curve becomes steeper as time progresses, showing that the velocity is increasing over time. The slope at any point on a position-versus-time graph is the instantaneous velocity at that point.
