How can the lever be balanced?

• add weight to the right side
• move the fulcrum right
• move the heavier weight back

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A knife is an example of a (an)

• inclined plane
• wedge
• ramp
• pulley

All of these are examples of a wheel and axle except:

• pizza cutter
• doorknob
• windmill
• lever

In this illustration,

• the machine is decreasing mechanical advantage
• the machine is increasing mechanical advantage
• mechanical advantage is not changed

To increase the mechanical advantage of a lever

• make sure the fulcrum is in the middle of the lever
• move the fulcrum closer to the load
• move the fulcrum closer to the effort
• use a bigger fulcrum

Tags

NGSS.MS-PS2-2

A simple machine usually used to raise a flag is a (an)

• inclined plane

• pulley

• lever

• wheel and axle

A push or pull is a 

• load
• fulcrum
• force
• work

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

An object being lifted or moved is a

• load
• fulcrum
• force
• work

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

________________ is done whenever a force moves an object a distance

• load
• friction
• force
• work

A ramp is an example of a(n)

• inclined plane
• fulcrum
• force
• lever

Tags

NGSS.MS-PS3-2