It is all about context.
Let's talk about a clothesline.
The load on the clothesline is the weight of all the clothes hanging from the clothesline.
That load is one of the forces on the line.
Each end of the clothesline is attached to something; the clothesline pulls on that thing, and that thing pulls with an equal and opposite force on the clothesline.
That pull is another one of the forces on the line.
The force of that pull is often many times the force of the load of the clothes.
There is also the small force of gravity acting on the mass of the clothesline itself.
That force is another one of the forces on the line.
On some days, the wind pushes directly on the line, and indirectly on the clothes hanging on the line.
That "wind load" is another force on the clothesline.
Many students taking classes in statics learn about the internal forces on ropes such as this clothesline.
They imagine cutting the line, holding the cut ends with their hands, and try to figure out how hard they would have to pull to keep it in the same place that it was before the cut.
In other words, they are trying to figure out the internal pull of one part of the rope on the other part.
These students learn about many kinds of internal (non-load) forces, such as tension, compression, torsion, bending moment (torque), etc.
In ropes, such internal forces are always in tension, but other (non-rope) structures have all these other kinds of internal forces.
No, the function of the fulcrum remains the same The only change would be the ratio of force to load The closer the fulcrum is the the load, the less force required to lift it The farther away the fulcrum is from the load, the more force required to lift it
To do this you first have to calculate your ideal mechanical advantage (IMA). The IMA is equal to the effort distance (the distance from the fulcrum to where you will apply the effort) divided by the load distance (the distance from the fulcrum to the load). You can then set your IMA equal to your acutal mechanical advatage (AMA) which assumes 100% efficiency. The AMA is equal to the load force (the weight of what you are lifting) divided by the effort force (the # you are looking for). So, for example, if your IMA is 5 and your load force is 500 lbs: 5=500/effort force. Therefore the effort force would be 100 pounds.
Levers are classified into three types (first-class, second-class, and third-class) depending on the relative position of the fulcrum (pivot point), the point of applied (input) force, and the location of the load (output force). In a first-class lever, the fulcrum is between the input force and the output force, and the load is moved in the opposite direction of the applied force. Placing the fulcrum closer to the load gives an advantage of force (less force needed to move the load a shorter distance), while a fulcrum closer to the point of applied force gives an advantage of distance (the load is moved a greater distance but more applied force is needed). First-class levers include a crowbar, using a hammer's claw end to remove a nail, and a pair of scissors. In a second-class lever, the load is between the fulcrum and the point of applied force, so both forces move in the same direction. Less force is needed to move the load, but the load does not move as far as the direction over which the input force must be applied. Examples include the wheelbarrow, a bottle opener, and a door on its hinges. In a third-class lever, the input force is applied between the fulcrum and the load, and both move in the same direction. The amount of applied force is always greater than the output force of the load, but the load is moved a greater distance than that over which the input force is applied. Examples include a hammer driving a nail and the forearm of a person swinging a baseball bat. If you want to find out any more, go to: http://www.technologystudent.com/forcmom/lever1.htm :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :)
A single wheel pulley means that the rope you hold has one attachment to the load so the force is the same as the load, just in a different direction. So lifting something means you could actually apply the whole of your weight to the rope, rather than just the strength of your muscles. (Multiple pulley wheels mean that the same rope tension is applied to the load several times, so the force you apply to the rope is applied to the load several times.)
AMA=force produced/force applied TMA=distance effort moves/distance load moves
To move a load in physics, we need to apply a force to overcome the resistance to motion. This force must be greater than the force of friction or any other opposing forces acting on the load. By applying a force in the direction of motion, we can accelerate the load and make it move.
The load force is applying a force to move or hold an object that has weight.
Any external force to which a machine part is subjected
If you increase the load force, the effort force required to move the load will also increase. This is due to the principle of equilibrium in which the effort force must overcome the load force to maintain balance.
The force needed to move a load depends on factors such as the weight of the load, the surface it is being moved on, and any friction present. To calculate the force required, you can use the formula Force = mass x acceleration, where mass is the weight of the load and acceleration is the rate at which the load is being moved.
A load on a lever refers to the force or weight being applied to the lever that needs to be moved or lifted. The load creates a resistance that the lever must overcome in order to achieve the desired movement or action. The load can vary in weight and is a key consideration in determining the appropriate lever design and placement of the effort force.
The direction of the force acting on a load depends on the nature of the situation. If the load is being lifted upwards, the force is acting upwards. If the load is being pulled downwards, the force is acting downwards. The direction of the force is determined by the direction in which the load is being moved or supported.
The force on the load for a catapult is generated by the tension in the rope or elastic material used to propel the load. When the catapult is released, the stored potential energy is converted into kinetic energy, propelling the load forward. The force on the load depends on the tension in the catapult mechanism and the mass of the load being launched.
work (effort) equals load times distance
The force exerted by the load being lifted is called the weight of the load. It is the force acting downwards due to gravity. This weight needs to be overcome by the lifting force to lift the load.
The downward force acting on the load is due to gravity. This force is equal in magnitude to the weight of the load and is responsible for pulling the load downward.
The downward force acting on a load is typically the force of gravity. This force is directed towards the center of the Earth and is constant as long as the mass of the load remains the same.