Simple Machine and Tech design

What is it called when a machine has more than one simple machine

• double machine

• complicated machine

• complex machine

• it's still a simple machine

Which of these is not a lever

• Scissors

• A wheelbarrow

• A shovel

• A staircase

Which of these is not part of a lever

• Effort

• Fulcrum

• Load

• Force

Which class of lever has the fulcrum located in the middle

• 1st class

• 2nd class

• 3rd class

Which of these is a second class lever

• A crowbar

• A hammer

• Bottle opener

• Fishing rod

A pulley works by changing the direction of the _____

• Effort

• Force

• Load

• Work

A pulley must contain at least one ____ that will turn on an axle

• Rope

• Wheel

• Chain

• Screw

A fixed pulley acts as a ____ class lever

• 1st

• 2nd

• 3rd

A movable pulley acts at _____ lever

• 1st class

• 2nd class

• 3rd class

Which of these does not have an inclined plane

• A staircase

• An ax

• A screw

• A seesaw