Simple Machines and Mechanisims

Question 1

First-Class-Lever

Answer 1

• fulcrum is in the middle

example. teet or-totter

Question 2

Second-Class-Lever

Answer 2

• output force is in the middle

example. bottle opener

Question 3

Third-Class-Lever

Answer 3

• input force is in the middle

example. hockey stick

Question 4

Wheel and Axle

Answer 4

-shaft or axle that is attached to the wheel

Question 5

Inclined Plane

Answer 5

-sloping surface on which an object can move

Question 6

Screw

Answer 6

-inclined plane wrapped around a rod

Question 7

Wedge

Answer 7

-inclined plane that travels through an object or material

Question 8

Pulley

Answer 8

• grooved wheel with a rope or cable looped around it

- can change the direction of the force or increase the output force, depending on whether it is fixed or moveable

Question 9

Lever

Answer 9

-made up of a rigid bar that is supported at one point, the fulcrum