Questions: Multiple Choice Question
Which describes a second-class lever?
The resistance is located between the fulcrum and effort.
The effort is located between the fulcrum and resistance.
The fulcrum is located between the effort and resistance.
Transcript text: Multiple Choice Question
Which describes a second-class lever?
The resistance is located between the fulcrum and effort.
The effort is located between the fulcrum and resistance.
The fulcrum is located between the effort and resistance.
Solution
Solution Steps
Step 1: Understanding Lever Classes
Levers are simple machines that consist of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. There are three classes of levers, each defined by the relative positions of the fulcrum, effort, and resistance (load).
Step 2: Identifying a Second-Class Lever
In a second-class lever, the resistance (load) is located between the fulcrum and the effort. This setup allows the effort to move a larger load with less force, as seen in tools like wheelbarrows.
Step 3: Analyzing the Options
The first option states that the resistance is located between the fulcrum and effort, which matches the definition of a second-class lever.
The second option states that the effort is located between the fulcrum and resistance, which describes a third-class lever.
The third option states that the fulcrum is located between the effort and resistance, which describes a first-class lever.
Final Answer
The correct description of a second-class lever is: \(\boxed{\text{The resistance is located between the fulcrum and effort.}}\)