Levers and Gears Flashcards
1
Q
What are levers used for?
A
Levers are used to increase the force applied to an object. They must have a pivot to rotate around and will work on the principle of moments.
2
Q
Name 3 examples of levers in everyday life
A
- Scissors
- Human Arm
- Wheel Barrow
3
Q
What are gears used for?
A
Gears are used to transmit rotational forces from one place to another.
4
Q
What is the equation for gear ratio?
A
Gear Ratio = Number of Teeth of Driven Gear / Number of Teeth of Driver Gear
