What is the difference between uniform motion and uniform linear motion

**Exercise is different. **Uniform motion includes uniform linear motion and uniform circular motion. Uniform linear motion is essentially a uniform circular motion along the sphere of the universe.

Uniform circular motion is a special case of uniform motion in which the direction of its velocity is constantly changing. Uniform linear motion should not only have the same velocity, but also always keep the direction of motion in the same straight line.

The speed characteristics are different. In uniform linear motion, the average velocity and instantaneous velocity are equal, and the magnitude and average velocity of the average velocity are also equal. In a uniform circular motion, the magnitude of the instantaneous velocity is equal to the velocity, and the magnitude of the average velocity is not equal to the average velocity.

In general, the main difference between uniform motion and uniform linear motion is the path of motion and the characteristics of velocity, which need to be judged and distinguished according to specific situations.

Hello! Uniform motion only requires constant velocity, and uniform linear motion not only requires constant velocity, but also requires linear motion. That is, uniform motion can be a uniform curvilinear motion and a uniform linear motion.

Hope, thank you!

The mechanical motion of the same velocity as stipulated in junior high school physics is called uniform motion. In junior high school physics teaching, velocity is velocity, and the direction of velocity is not considered.

High school physics dictates that motion through the same displacement at any time is called uniform motion. That is, a motion in which the velocity does not change in magnitude and direction, or a motion in which acceleration is zero. Namely.

Uniform linear motion

Features:

1. The acceleration of an object moving at a uniform speed.

Zero. Sell the game.

2. The combination of ideal state and reality: uniform linear motion.

It is not common because the condition for an object to move in a uniform straight line is that it is not subject to external forces or the sum of the external forces is zero, but we can think of some motions as a uniform linear motion. As can be seen from the formula, the displacement is a proportional function of time and lead.

The displacement is directly proportional to time.

3. When the object is in uniform linear motion, the force of the object is balanced.

Pay attention to the main points. 1) Velocity is a physical quantity that indicates how fast or slow an object is moving.

Velocity can be represented by the symbol v. In the International System of Units.

si), the principal unit of velocity is m s, which reads: meters per second. Commonly used units are km h, m min and so on.

2) The velocity of an object moving in a straight line at a uniform velocity remains constant, so if the velocity of motion at a certain moment (or a certain distance) is known, its velocity at any time or at any point of motion is known.

3) When an object is subjected to two or more forces, if it can remain at rest or move in a straight line at a uniform speed, we say that the object is in equilibrium.

4) The formula s=vt cannot be understood mathematically to mean that the speed of an object's motion is proportional to the distance traveled and inversely proportional to time. Uniform linear motion is characterized by instantaneous velocity.

The magnitude and direction remain the same, the acceleration is zero, and it is an idealized motion.

5) Charged particles are subjected to constant force and Lorentz force.

When moving under the joint action, as long as it is a linear motion, it must be a uniform linear motion. (Reason: A force like floon changes with velocity, i.e., velocity directly affects the resultant force, which in turn directly affects acceleration, i.e., affects the direction of motion.) ）

6) Uniform linear motion is only ideal.

Uniform linear motion is essentially a uniform circular motion along the sphere of the universe. V=WR Uniform linear motion is the simplest mechanical motion, which refers to the movement along a straight line with constant speed (i.e., constant speed). In a uniform linear motion, the distance is proportional to time and is calculated by the formula s=vt.

Several definitions: 1. An object that maintains a stable velocity in a fixed direction without force or force balance can be understood as a uniform linear motion.

2. The situation in which an object is not subjected to force is impossible in real life and is an ideal model.

3. In the case of force balance, the net force of the object is 0, the object will not have acceleration, and the speed of motion will remain unchanged.

Question 1: What is uniform linear motion The definition in the book is "the motion with equal displacement in the same time is the uniform linear motion" If you are in junior high school, you just need to remember that "the same distance passed in the same time is the same linear motion".

Question 2: What is uniform linear motion? What are its features?

Uniform linear motion An object moving in a straight line with an equal displacement of the arc at equal intervals of time is called uniform linear motion. For an object that is moving in a straight line at a uniform velocity, the ratio of displacement to time is a constant in different displacements or time periods, which is called velocity, and the magnitude of the velocity directly reflects the speed of the object's motion. In uniform linear motion, the average velocity and instantaneous velocity are the same, the magnitude and average velocity of the average velocity are also equal, and the displacement of the uniform motion is proportional to the time, which is expressed by the formula s=vt.

The acceleration of an object moving at a uniform velocity is zero.

We call a linear motion with constant velocity a uniform rectilinear motion [1], which means that the ratio of the distance traveled by the object to the time in any period of time is a fixed value. Therefore, it is important not to understand the formula mathematically to mean that the speed of an object's motion is proportional to the distance traveled and inversely proportional to time. An object that does a uniform linear motion is characterized by the fact that the magnitude and direction of the instantaneous velocity remain unchanged, and the acceleration is zero, which is an idealized motion.

Uniform linear motion is not common, and we can approximate some motion as uniform linear motion. For example, a skater sliding after stopping to exert force, a customer standing on an escalator in a shopping mall, etc.

We can use v=x t to find their velocity, where x is the displacement, v is the velocity, it is a constant vector, and t is the time it takes for the displacement x to occur, and it can be seen from the formula that the displacement is a function of time, and the displacement is proportional to time.

Note: 1) The velocity of an object moving in a uniform straight line is uniform, so if you know the speed of motion at a certain time (or a certain distance), you know her velocity at any time or at any point of motion.

2) The unit of speed: in the International System of Units, the unit of residence is m s, and the commonly used units are km h, m min, etc.

3) An object is said to be in equilibrium if it can remain at rest or move in a straight line at a uniform speed when it is subjected to two forces.

Question 3: What is uniform linear motion? 10 points A process in which the direction of motion is a straight line and the magnitude and direction of velocity remain constant during motion.