Simple Machines

Question 1

Simple Machines

Answer 1

One of the six basic types: Lever, Pulley, Wheel n Axle, Inclined Plane, Wedge, and Screw

Question 2

Lever Family

Answer 2

Simple Lever, Pulley, Wheel and Axle

Question 3

Inclined Plane Family

Answer 3

Simple Incline, Wedge, Screw

Question 4

Lever Types

Answer 4

1st, 2nd, and 3rd Class

Question 5

First Class Levers

Answer 5

Output Force, Fulcrum, Input Force. Ex: Pulling with a Claw-Hammer

Question 6

2nd Class Levers

Answer 6

Fulcrum, Output Force, Input Force. Ex: Pushing a Wheelbarrow

Question 7

3rd Class Levers

Answer 7

Fulcrum, Input Force, Output Force. Ex: Lifting a Weight

Question 8

Pulleys

Answer 8

A different kind of lever, they are 1st Class Levers.
The middle is always a fulcrum. If the pulley is moving or you use multiple fulcrums, there is more mechanical advantage.

Question 9

Wheel and Axle

Answer 9

Wheels are basically levers or pulleys connected to a shaft. When you turn the wheel the force is multiplied for a much stronger output.

Question 10

Inclined Planes’ Function

Answer 10

Inclined planes multiply and redirect force. When you push up a ramp, the object is going in a direction parallel to it and the ramp redirects this force upwards.

Question 11

Wedges

Answer 11

A wedge is a modified inclined plane. An axe is an example of a wedge; it goes into a piece of wood and redirects the force sideways so that the wood splits apart.

Question 12

Screws

Answer 12

Screws are inclined planes wrapped around a cylinder. These gently sloping threads around the metal cylinder allow a small force to act over a large distance.

Question 13

Compound Machines

Answer 13

A machine that combines two or more simple machines is called a compound machine. A scissor is an example of a compound machine, it uses two first-class levers connected by a common fulcrum.