SIMPLE MACHINES #2

A boy uses this simple machine to lift a load. How does this machine help the boy to do work?

• by changing the direction

• by reducing total work

• by decreasing distance

• by reducing effort force

Tags

NGSS.MS-ETS1-1

An ax head is a simple machine called a wedge. How can you make the cutting edge more efficient?

• make it longer

• make it shorter

• make sharper

• make it more rounded

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-4

How can you make an inclined plane more efficient?

• cover it with a rough material

• make it face the opposite direction

• increase the height

• increase the length

Tags

NGSS.MS-ETS1-1

Which ramp will require the least amount of force?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

_____________ are a sloping surface.

• pulleys

• inclined planes

• levers

• wheel and axles

Tags

NGSS.MS-PS2-2

_____________are made up of a grooved wheel with rope/chain running along the groove.

• ramp

• inclined plane

• pulley

• lever

wheelbarrows, fishing rods and baseball bats are all examples of ________________

• inclined planes

• wedges

• levers

• compound machines

If Sarah uses a ramp to put a box in a truck, while Nick lifts a similar box directly into the truck, who used MORE force?

• Sarah
• Nick

Tags

NGSS.MS-PS2-1

A wheelbarrow, pulley, and wedge are all examples of what?

• levers
• inclined planes
• wheel and axel
• simple machines

One or two inclined planes that move when used. Thick at one end and thin at the other.

• wedge
•   screw
• wheel and axle 
• pulley