Motion and forces
In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. All motion can be described in terms of its origin, the final position of the motion, the velocity at which it happens and the path travelled, the trajectory. Motion and variations in motion are all produced by the action of forces on objects. [...]
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14 actividades
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56 recursos
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In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. [...]
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1. Motion A moving object is any object which changes position over time. A trajectory is a line which connects the different positions occupied by a moving object. A trajectory can be: rectilinear, circular or parabolic. [...]
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In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. [...]
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A moving object is any object which changes position over time. 1.1. The trajectory of motion A trajectory is a line which connects the different positions occupied by a moving object (figure 1). A trajectory can be: Rectilinear. [...]
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2.1. Velocity In a moving car, the speedometer tells us what velocity it is travelling at, at any given moment (figure 1). Velocity is the distance travelled per unit of time. [...]
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3.1. What are forces? Forces are the causes of changes in the velocity and direction of objects and also in the shape of objects. The SI unit of force is the newton (N). 3.2. [...]
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4.1. Gravitation Gravitation (or gravity) between two bodies with mass is the force of attraction experienced by those bodies due to their mass. The greater the mass of the bodies, the greater the force of attraction. [...]
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5.1. Motive force Motive force, Fm, is the force which makes an object move. For example, the force exerted by the engine of a plane which allows the plane to fly. 5.2. [...]
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6.1. The efficiency of force When a force is applied, the effect caused depends not only on the magnitude of the force, but also on the surface area to which it is applied. [...]
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7.1. Archimedes' principle If we try to submerge a ball in a container of water, the water exerts a vertical upward force known as upthrust. [...]
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In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. [...]
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In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. [...]
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In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. [...]
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In the world around us, we can see many objects in motion: cars, bicycles, planes, even ourselves. The planets in the Solar System are also in constant motion around the Sun. [...]
Cursos y asignaturas
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13 años:
- Biología
- Geologia
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14 años:
- Geologia
- Biología
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