## Force of gravity and gravitational field – problems and solutions

1. Two objects m1 and m2 each with a mass of 6 kg and 9 kg separated by a distance of 5 cm. Object m3 = 1 kg is placed between the two. If the gravitational force experienced by...

## Parabolic motion, work and kinetic energy, linear momentum, linear and angular motion – problems and solutions

1. A ball is thrown from the top of a building with an initial speed of 8 m/s at an angle of 20o below the horizontal. The ball hits the ground 3 seconds later. a) How far from the...

## Electric potential

Definition of the electric potential Electric potential is defined as the electric potential energy per unit charge. Suppose that when it is at point a, the charge q has the electric potential energy equal to EPa, then the electric...

## Electric potential energy

Before studying this topic, first understand work, the conservative forces, the relationship between the conservative forces with potential energy, the electric forces and the electric field. Electric force is the conservative forces In addition to the gravitational force and...

## Determining the electric field using Gauss’s law

Electric field by a single point charge To calculate the electric field produced by a single positive charge, the first step is to select the spherical Gauss surface with radius r where the center of the sphere is at...

## Gauss’s law

On the topic of Coulomb’s law, the force between electric charges has been studied. In a review of the electric field, another form of Coulomb’s law has been discussed which is expressed by the equation F = q E,...

## Electric flux

On the topic of the electric field, has been discussed the definition and equation of the electric field which can be used to calculate the electric field strength produced by an electric charge, some electric charge or by an...

## Electric field lines

The electric field is something that is generated by an electric charge and affects the space around the electric charge, where the influence of the electric field is only felt by other electrical charges. When another electric charge is...

## Electric field

On the subject of the electric charge, was learned that like charges repel each other while unlike charges attract each other. If a positively charged object is brought close to a negatively charged object, the two objects pull together...

## Coulomb’s law

In the article about the electric charge and the types of electric charges explained that like charges repel each other while unlike charges attract each other. In other words, positively charged objects attract negatively charged objects, positively charged objects...