Free Body Diagrams
... What forces act on you as you stand on a steep ramp? In which direction do you feel pulled? What happens if the ramp has a slippery surface? This activity explores the forces on an object when it is on a flat surface and when it is on an incline. ...
... What forces act on you as you stand on a steep ramp? In which direction do you feel pulled? What happens if the ramp has a slippery surface? This activity explores the forces on an object when it is on a flat surface and when it is on an incline. ...
forces, motion, gravity lecture
... 1. when electricity flows, it creates a magnetic field. Thus, there are two types of forces created which are related: a. electric -between opposite charged particles: balloon ...
... 1. when electricity flows, it creates a magnetic field. Thus, there are two types of forces created which are related: a. electric -between opposite charged particles: balloon ...
Section 2.1 Outline
... 2) example: a soccer ball will continue moving until stopped by a goalie or net ...
... 2) example: a soccer ball will continue moving until stopped by a goalie or net ...
Study guide on forces, Newton`s Laws, ect.
... (Not really necessary to know this for test – just interesting facts!) ...
... (Not really necessary to know this for test – just interesting facts!) ...
Newton`s 2 nd Law
... 2 people are pulling at opposite ends of a rope. The person pulling on the right side of the rope is applying a force of 50N while the person on the left is applying a force of 70N. What will happen to the rope? 1. It will move towards the right. 2. It will move towards the left. 3. It will fall to ...
... 2 people are pulling at opposite ends of a rope. The person pulling on the right side of the rope is applying a force of 50N while the person on the left is applying a force of 70N. What will happen to the rope? 1. It will move towards the right. 2. It will move towards the left. 3. It will fall to ...
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.