1. What is Mechanical Advantage?

Definition: Mechanical Advantage (MA) measures how much a simple machine multiplies the input force.

Purpose: It helps us understand how machines make work easier by increasing force or changing direction.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( MA \) — Mechanical Advantage (no units)
• \( F_{out} \) — Output force (Newtons, N)
• \( F_{in} \) — Input force (Newtons, N)

Explanation: If MA > 1, the machine multiplies your force. If MA = 1, it just changes direction. If MA < 1, it increases speed/distance instead.

3. Examples of Simple Machines

Details: Common simple machines include levers, pulleys, inclined planes, wheels and axles, screws, and wedges.

4. Using the Calculator

Tips: Measure the force you apply (input) and the force the machine produces (output). Enter both values in Newtons (N).

5. Frequently Asked Questions (FAQ)

Q1: What does MA = 2 mean?
A: It means the machine doubles your input force (but you'll move twice as far).

Q2: Can MA be less than 1?
A: Yes! Some machines trade force for increased speed or distance.

Q3: How do I measure force?
A: Use a spring scale to measure both input and output forces.

Q4: What's the MA of a seesaw?
A: It depends where you sit! Moving farther from the pivot increases MA.

Q5: Why no units for MA?
A: Because it's a ratio of two forces, the units cancel out.