Question

Reading Strategy (page 421)
Building Vocabulary As you read the section, write a definition in the table
for each vocabulary term in your own words. For more information on this
Reading Strategy, see the Reading and Study Skills in the Skills and
Reference Handbook at the end of your textbook.
Mechanical Advantage
Vocabulary Definition
Mechanical The number of times a machine increases force
advantage

Answer 1

Mechanical advantage — How many times a simple machine multiplies your input force. Mathematically: MA = output force ÷ input force (no units).
Example: If you push with 30 N and the machine exerts 120 N, MA = 120 ÷ 30 = 4. (Ideal MA ignores friction; real MA is lower if there are losses.)