The Electrostatic Force
... Electric Field Diagrams Properties of Electric Field Lines: 1) They show the direction of the resultant force on a small positive test charge (out of positive, into negative). 2) They never cross since this would indicate that the resultant forceis in two different directions at once. 3) The directi ...
... Electric Field Diagrams Properties of Electric Field Lines: 1) They show the direction of the resultant force on a small positive test charge (out of positive, into negative). 2) They never cross since this would indicate that the resultant forceis in two different directions at once. 3) The directi ...
AP Physics – Newton`s Laws – Force and Motion Types of Forces
... the other end of the rope is being pulled by another tug-of-war team such that no movement occurs. What is the tension in the rope in the second case? ...
... the other end of the rope is being pulled by another tug-of-war team such that no movement occurs. What is the tension in the rope in the second case? ...
Inverse Square Laws
... 1. The universal part of Newton's law of universal gravitation means that A) the amount of gravitational forces is the same for all objects. B) the acceleration caused by gravity is the same for all objects. C) the force of gravity acts between all objects. 2. According to Newton's gravitation law, ...
... 1. The universal part of Newton's law of universal gravitation means that A) the amount of gravitational forces is the same for all objects. B) the acceleration caused by gravity is the same for all objects. C) the force of gravity acts between all objects. 2. According to Newton's gravitation law, ...
applied science viva questions
... Resultant: It is a single force which produces same effect as produced by a system of forces. Equilibrant: It is a single force which cancels the effect produced by a system of forces. Equilibrium: A body is said to be in equilibrium when the net effect of all forces acting on it is zero. 9. What is ...
... Resultant: It is a single force which produces same effect as produced by a system of forces. Equilibrant: It is a single force which cancels the effect produced by a system of forces. Equilibrium: A body is said to be in equilibrium when the net effect of all forces acting on it is zero. 9. What is ...
Weightlessness
Weightlessness, or an absence of 'weight', is an absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces from floors, seats, beds, scales, and the like. Counterintuitively, a uniform gravitational field does not by itself cause stress or strain, and a body in free fall in such an environment experiences no g-force acceleration and feels weightless. This is also termed ""zero-g"" where the term is more correctly understood as meaning ""zero g-force.""When bodies are acted upon by non-gravitational forces, as in a centrifuge, a rotating space station, or within a space ship with rockets firing, a sensation of weight is produced, as the contact forces from the moving structure act to overcome the body's inertia. In such cases, a sensation of weight, in the sense of a state of stress can occur, even if the gravitational field was zero. In such cases, g-forces are felt, and bodies are not weightless.When the gravitational field is non-uniform, a body in free fall suffers tidal effects and is not stress-free. Near a black hole, such tidal effects can be very strong. In the case of the Earth, the effects are minor, especially on objects of relatively small dimension (such as the human body or a spacecraft) and the overall sensation of weightlessness in these cases is preserved. This condition is known as microgravity and it prevails in orbiting spacecraft.