Question

multiple choice question

what is formed by an elongated, rigid object rotating around a fulcrum?

pivot
lever
wedge

Explanation:

Define the mechanical system components

Using the Skeletal Lever Systems knowledge point

• An elongated, rigid object (such as a bone) is the bar.
• The fixed point about which it rotates is the fulcrum (such as a joint).
• This arrangement forms a lever.

Evaluate the given options

• Pivot: A point or shaft on which a mechanism turns, but not the entire system itself.
• Lever: A simple machine consisting of a rigid bar rotating about a fixed point (fulcrum).
• Wedge: A triangular-shaped tool used to split, lift, or secure objects.

Answer:

• Pivot
• Lever (Correct answer)
• Wedge