Simple Machines

Mechanical Advantage of a IDEAL MACHINE is always =

• 3

• 6

• 2

• 1

in the second class lever what is in between

• load

• effort

• fulcrum

how many types are there of simple machines

• 7

• 6

• 5

• 8

what are the types of pulley

• movable pulley

• combination of pulley

• rotation pulley

• fixed pulley

which of the following is a Class 3 lever

• knife

• bottle opener

• fishing rod

• sugar tongs

What simple machine holds things together?

• Wedge
• Screw
• Lever
• Pulley

What simple machine has a fulcrum and can be used to lift a weight?

• Pulley
• lever
• screw
• wedge

Which of the following is a requirement for work to be done?

• Force is exerted.
• Object is carried.
• Force moves an object.
• Machine is used.

Which is an example of how a simple machine changes the direction of a force?

• using a rope to pull a box up a hill
• using a rope and pulley to raise a flag
• using a slide to push a box down steps
• using an axle and wheel to make a wagon move forward

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following is a form of the inclined plane?

• pulley
• screw
• wheel and axle
• lever