Simple Machines

Which is not a type of simple machines?

• spring
• screw
• pulley
• wedge

What is the fixed point upon which a lever rotates?

• fulton
• fulcrum
• furmen
• falcon

What type of simple machine is found on the floor of a bathtub?

• screw
• inclined plane
• wedge
• pulley

A screw is made up of _________ wrapped around a post or rod.

• treads
• springs
• threads
• strings

What is an example of a third-class lever?

• broom
• screwdriver
• screw
• wheelbarrow

What kind of lever has the fulcrum between the effort and the resistance and changes the direction of a force?

• 1st Class Lever
• 2nd Class Lever
• 3rd Class Lever
• No Class Lever

How does a single fixed puled, like the one seen here, help you do work?

• changes the direction of the force
• increases the amount of applied force
• decreases the amount of applied force
• allows you to pull the rope a shorter distance

Tags

NGSS.MS-ETS1-1

The amount by which a machine multiplies input force is known as the 

• work.
• power.
• output force.
• mechanical advantage.

The 3 parts of a lever are:

• fulcrum, effort, and load

• load, output, and input

• input, effort, and fulcrum

• pivot, output, and fulcrum

The IMA (ideal mechanical advantage) formula for an inclined plane is:

• length/height

• height/length

• none of these

• ramp length plus ramp height