Levers are denominated as being either first-class, second-class or third-class levers. A lever is classified based on the position of the fulcrum in relation to the point of effort and the load. The fulcrum is the pivot point of a lever.Know More
A first-class lever will have the fulcrum located between the effort and the load. This could be exactly in the middle or off-center. In second-class levers, the load is between the fulcrum and the effort. In third-class levers, the effort is between the load and the fulcrum.
Some examples of first-class levers are scissors, pliers and seesaws. In these types of levers, the greater the distance of the effort to the fulcrum compared to the load and the fulcrum, the greater the force of the effort will be amplified.
Examples of second-class levers include wheelbarrows, nut crackers and staplers. With the load being in between the force and the fulcrum, the result is that the force will always have to travel further to the pivot, creating a mechanical advantage.
Third-class levers include tweezers, fishing rods and tongs. With the effort being in the middle, the mechanical advantage that is drawn from the force in relation to the load will always be inferior.Learn more about Physics
Astronomy, acoustics, astrophysics, biophysics, chaos theory, chemical physics, computational physics, cosmology, cryophysics (cryogenics), crystallography, electromagnetism, electronics, fluid dynamics, geophysics, high energy physics and high pressure physics are a few of the different branches in the field of physics. Physics acts as a root in scientific study from which to branch into the scientific community.Full Answer >
By learning about the six simple machine types, kids can gain a better understanding of how people have always looked for solutions to solve their problems, sought more effective ways to do their work and learned to control or redirect forces to their advantage. Although the modern world makes use of a wide variety of compound machines, learning about the six simple machines that combine to form them provides insight into how the direction of a force and its speed can be altered to accomplish a desired goal. Many modern machines make use of the same basic principles that enable the six simple machines to do their work.Full Answer >
Some of the types of first-class levers include crowbars, scissors, seesaws, fishing rods, pliers, balance scales, trebuchets and hammers when removing nails. All of these levers have a fulcrum positioned between load and effort. First-class levers are the most common type of levers.Full Answer >
To convert meters to angstroms, one moves the decimal point to the right 10 times, padding any empty spaces with zeros. For example, 1 meter equals 100,000,000,000 angstrom. Using the following example, 2.395 meters is exactly 23,950,000,000 angstrom. One can easily convert meters to angstroms using these calculations methods.Full Answer >