The forces of friction, which oppose displacement, also carry out work when a body is moving. The work of friction is converted into heat. The greater the force of friction, the more force must be exerted to move the body. Verify how friction affects the displacement of some blocks.

The educational resource shows a visual about the movement of electric charges: the visual shows a capacitor where the intensity of an electric field bewteen its plates is practically constant. This area is a good place to study how the charges inside an electric field move.

This teaching unit aims at introducing vectors into the study of movement. There is a revision of the concepts of : Reference system, position and displacement vectors, presented in the 4th year of secondary education (Trajectory) There is a return to fundamental concepts like UM, AUM, UCM presented in previous courses: 2nd year of secondary education:Kinematics; 4th year of secondary education: Rectilinear Movement. and Uniform Circular Movement. Concepts like average and instantaneous veloc...

In this teaching unit you will learn: To understand the parallelism between an electric circuit and the distribution of water in a closed circuit. To learn the characteristic magnitudes which describe an electric circuit: the potential difference, intensity, resistance, electromotive and counter electromotive force. To demonstrate and understand the fundamental laws which relate these magnitudes. To be able to calculate intensities, tension, power and energy in simple circuits.

In this teaching unit you will learn: To understand in a qualitative way the notion of relative movement, to a sufficient degree to be able to explain the apparent movement of heavenly bodies as a consequence of the earth's rotation and translation. To explain in terms of these same movements the succession of days and nights and the seasons of the year. To know the components of the solar system and some of its most interesting properties. To understand the analogous nature among the sun and...

In this teaching unit you will learn: To understand the concept of a simple machine as an instrument which saves effort but not work. To understand the way in which energy from wind or water is converted into the mechanical energy of a circular movement. To assimilate the equivalence between mechanical energy and heat.   To formulate the first and second law of thermodynamics in a simple way. To learn to use the mathematical formulae for these laws to make simple predictions about the working...