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Is a nail puller a wedge or screw?
nether
What are the 3 classes of levers?
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 :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :)
Can a nail float in water?
The nail sinks in water because the gravitational force attracts it downward toward the earth, there is an upthrust of water on the nail which pushes it upwards but, the downward force acting on the nail is greater that the upward force. Hence, the nail sinks in water. The density of the iron nail is more than that of the water, this means that the upthrust of water on the iron nail is less than the weight of the nail, so it sinks. The cork floats while nail sinks this happens because of the difference in their densities. The density of a substance is defined as the mass per unit volume. The density of the cork is less than the density of water. This mean the upthrust of the cork is greater than the weight of the cork. The density of the iron nail is more than that of the water, this means that the upthrust of water on the iron nail is less than the weight of the nail, so it sinks.
Why a hammer which is used to drive a nail into a piece of wood can exert a greater force on the nail than the exerted by a larger mass placed on top of the nail?
The sharp point tends to work as a wedge and move the fibers off to the side. A blunt nail has to cut the fibers in order to go into the wood. This is because of pressure.
What is a non example of a screw?
Well, honey, a non-example of a screw would be a nail. They both hold things together, but a screw has those lovely threads that twist into materials, while a nail just gets hammered in like it's nobody's business. So, next time you're looking for a non-example of a screw, just think of a good ol' nail.
Which is stronger a nail or a screw?
A screw will have more holding force. As far as shear force, a screw is made from harder material and will break where a nail will bend.
What is the force that holds a nail or screw in wood?
Friction is the force that holds a nail or screw in wood. When a nail or screw is driven into wood, the friction between the fastener and the wood fibers creates resistance, preventing it from easily being pulled out.
How does a hammer change input force when taking a nail out?
A hammer can amplify input force when taking a nail out by leveraging the leverage principle. By exerting force on the hammer handle further away from the nail, you increase the leverage, allowing you to remove the nail more easily. The hammer acts as a lever, reducing the amount of force needed to pull out the nail.
When a hammer hits a nail how does the force on the nail compare to the force on the hammer?
The force of the hammer is much greater than the force of the nail. Gravity pulls down the hammer, hits the nail, and the nail forces up, but the force of gravity wins over the force pulling on the nail.
What the difference between input and output forces and the output distances for a hammer pulling a nail off a board?
The input force is the force applied by the person using the hammer to pull the nail. The output force is the force exerted by the hammer on the nail to pull it out of the board. The output distance is the distance the nail moves as it is being pulled out of the board.
How does the use of a nail differ from the use of a screw?
ones called a nail the others called a screw. Also you hammer in a nail but screw in a screw. Hope this answer helps. :)
Why does a Screw takes less forces to move into wood than a nail?
A screw has threads that create more surface area contact with the wood compared to a nail, distributing the force over a larger area. This design helps to reduce the force required to drive a screw into wood compared to driving a nail.
Which holds better a nail or screw why?
A screw holds better than a nail.
Why it is better to use a screw than a nail in holding objects together?
nails can slip, under too much force. But screws are in a 'screw shape' lol. so can withstand alot of pressure/ force.
Is a nail or a screw suitable to join 2 materials?
Screw A nail can pull out, a screw needs a screwdriver to undo
What works better a screw or a nail?
a screw works better cues it has threads and a nail is just goes straight in the board. The nail is stronger but the screw holds tighter.
Why does a screw work better for wood?
Screws are a more secure fastening than nails because the only barrier to removing a nail is the friction of the sides of the nail against the wood, so it can be pulled loose by a simple torsion force. A screw, however, has threads, so a torsion force cannot remove a screw without destroying part of the wood in the process.
