Principles of Engineering Semester Final

Which is not a type of simple machines?

• spring
• screw
• pulley
• wedge

What type of simple machine is found on the cap of a pickle jar?

• lever
• inclined plane
• screw
• wheel and axle

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 type of simple machine is shown here?

• Pulley
• Wheel and Axle
• Lever
• Wedge

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Something similar to a see-saw that can lift an object.

• Wedge
• Screw
• Lever
• Wheel and Axle

Tags

NGSS.HS-PS2-3

NGSS.HS-PS2-4

What is the formula for calculating work?

• F = w/d
• w= f x  d
• d = w/f
• ma = Fr/Fe

What is the formula for calculating mechanical advantage?

• F = w/d
• ma = Fr/Fe
• ma = F x D
• ma = M + A

What is the mechanical advantage of a simple machine if a force of 15 newtons lifts an object weighing 60 newtons?

• 2
• 45
• .25
• 4

Tags

NGSS.HS-PS2-1