The motion of an object can be described using both position and velocity. The velocity tells you how fast the object moves in a particular direction, while the position describes where the object is located at any given moment in time. For example, if you are driving on the highway and you pass an exit sign, your position changes from being on the highway to being off the highway (and vice versa). Your velocity does not change when you move between being on and off the highway.

**What is a particle?**

A particle is a very small piece of something. In the physical sciences, a particle is generally considered to be a small object that has mass and volume but no other distinguishing characteristics. Particles can be either matter or energy. They are often used as building blocks for larger structures, such as atoms, molecules, and compounds. The reason they are so small is because they need not include any bounding surface area. A particle may also refer to a particular unit of an atom or molecule, which may contain one or more protons, neutrons, and electrons. The field of atomic particles deals with this sub-area of physics by studying the properties of individual particles in isolation from other kinds. The study includes electrons (including spin), quarks (which make up hadrons), photons (including polarization), and all nuclear particles—with nuclei being composed from protons and neutrons.

**When is the particle moving in the positive direction?**

Particles move in the positive direction when they have a positive velocity. In other words, they are moving from left to right on a graph. This can be due to many things, such as an external force pushing them in that direction. Sometimes, particles may also change directions and start moving in the negative direction (from right to left on a graph). For example, this could happen if they bounce off of another object or if there is no longer any gravitational pull keeping them where they are. These particles will stop moving in the positive direction at some point; it all depends on how long it takes for something else to push or pull them back in that direction.

**To move in the positive direction the particle should move up**

The easiest way to determine if a particle is moving in the positive direction is to look at its trajectory. If the particle is moving up, then it is definitely moving in the positive direction. Additionally, if the particle’s velocity vector is pointing up, then it is also moving in the positive direction. If you’re not sure which way is up, just look at the acceleration vector; if that’s pointing up, then so is the positive direction. It can be difficult to tell when two vectors are perpendicular to each other, but if one vector points down and the other points up, then you can assume that the first vector is perpendicular to the second. If two vectors are perpendicular, then their dot product will be 0 and they’ll always have an angle of 90 degrees between them.

**The electric field points toward the cathode**

The electric field created by the battery pushes electrons from the cathode to the anode. This flow of electrons creates a current, which we can measure with a voltmeter. If the voltmeter reads positive, then the current is flowing in the direction of the electric field (from cathode to anode). If the voltmeter reads negative, then the current is flowing in the opposite direction of the electric field. If there is no reading on the voltmeter, then the voltage difference between the two electrodes is too small for it to register and we have reached equilibrium.

**The electric field points toward the anode**

The electric field is created by the flow of electrons from the cathode to the anode. Electrons are negatively charged, so they are attracted to the positive charge of the anode. The further away from the cathode they are, the weaker this attraction is. When they get close to the anode, they will be pulled in that direction. To determine which way a particle is going, you can think about it as being opposite the electric field. A positively charged particle (e.g., an electron) would move away from the negative end of the battery and towards the positive end, or vice versa for a negatively charged particle (e.g., a proton).

** ****How to find the absolute value of a complex number?**

The absolute value of a complex number is the distance from the origin (0,0) to the point on a complex plane representing the number. To find the absolute value of a complex number, we use the Pythagorean theorem. The theorem states that in a right angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In our case, we are interested in finding the length of Side C. First, take the absolute value of both Sides A and B. For example, if Side A is 5 and Side B is -4 then 5-4=1 and -4+5=-1. Now plug these numbers into the equation for solving for C as follows:

The hypotenuse or C equals 4

**How to check if a particle is moving in the positive direction?**

There are a few ways to check if a particle is moving in the positive direction. One way is to look at the velocity vector. If the velocity vector is pointing in the same direction as the displacement vector, then the particle is moving in the positive direction. Another way to check is to take the dot product of the velocity and displacement vectors. If the result is positive, then the particle is moving in the positive direction. Finally, you can also look at the sign of the acceleration vector. If the acceleration vector is pointing in the same direction as the velocity vector, then the particle is moving in a positive direction.

**Particle moving in the positive direction?**

A particle is moving in the positive direction when its velocity vector points in the positive direction. The magnitude of the velocity vector is the speed of the particle. The speed can be constant, or it can be changing (accelerating or decelerating). If the speed is changing, then the acceleration vector will tell us which way the velocity vector is pointing. The acceleration vector points in the same direction as the velocity vector if the object is speeding up, and it points in the opposite direction if the object is slowing down. When a car is accelerating on a highway, for example, the accelerator pedal pushes forward on the car so that the rear wheels spin faster than before. That’s because during an acceleration, there is no change in mass so Newton’s second law says that the force applied to accelerate a body must be equal to F = ma where m is mass and a is acceleration.

**Conclusion**

The answer to this question depends on your frame of reference. In a frame of reference where the positive direction is to the right, the particle would be moving in the positive direction when it is travelling to the right. However, in a frame of reference where the positive direction is up, the particle would be moving in the positive direction when it is travelling up. So, it all depends on your point of view!