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For example, a lever does that. Please note that while there is a physical law called "conservation of energy", there is no similar law for force. Also note that force and energy are two quite different things. There is no reason why force should be conserved. If a lever reduces the force required to lift a car, for example, it also requires the force to be applied along a longer path - so energy is conserved.
What else can I help you with?
What machines can change the direction of a force?
Well, its not that hard: Some machines help people do work by changing the size of the force needed. Have you ever tried opening a door by turning the shaft instead of the handle? Not as simple. It takes less force to use the handle instead of the shaft. If a machine (doorknob attached to shaft) allows you to exert less force, you must apply that force over a greater distance. the complete and total amount of work done remains the same, whether its by machine or not. Because a machine does not change the amount of work to be done, less force must mean greater distance. So: Machine=less force BUT greater distance!
Which type of machine change the direction or amount of force needed to do work?
Simple
Does simple machines make work easier or harder?
Simple machines usually decrease the amount of force needed and therefore making work easier. In some cases speed is traded like a baseball bat. It is called a third class lever. A simple pulley doesn't change the force but does change the direction.
What are the three things machines chance to make work easier?
Do you mean "change"? If you're talking about "simple machines", the usual answers are direction (eg., with a pully), speed, and force.
Which is true of all simple machines?
All simple machines change the direction or magnitude of a force to make work easier. They operate on a basic mechanical principle and do not have moving parts. Simple machines can be combined to create more complex machines.
A device that changes the size or direction of force used to do work?
A simple machine, such as a lever or pulley, can change the size or direction of a force to do work. These machines allow for easier lifting, pulling, or pushing by altering the input force's magnitude or direction through mechanical advantage.
Why do machines the less force to do the same amount of work?
Because machines allow force to be applied over a greater distance.
How do machines make work easier?
A machine makes work easier by changing at least one of three factors. A machine may change the amount of force you exert, the distance over which you exert your force, or direction in which you exert your force.
Work is made easier when what changes the direction or size of the force needed to do the work?
Work is made easier when machines such as levers, pulleys, wheels, and inclined planes are used to change the direction or magnitude of the force applied, allowing for a more efficient use of energy. These machines help reduce the amount of force needed to perform a task by utilizing principles of mechanical advantage.
3 ways simple machines make work easier?
Machines make work easier by: -Changing the amount of force you exert -Changing the distance in which you exert your force -Changing the direction in which you exert your force
What statements describes a way that simple machines make work easier?
Simple machines help people lift and pull heavy objects. Simple machines like pulleys have been around for decades helping people work more efficiently.
What is the link between machines and forces?
A Machine is something that helps do work. Work, in mechanics, is the amount of energy output over a distance. A force is what does the work, so a force acting over a distance does work...which is what machines help do. Further, the amount of time that a force takes to do work will determine the POWER output.
