Mrs. Love's Simple Machines and Mechanical Advantage

A seesaw is what simple machine?

• lever

• inclined plane

• pulley

• gear

A complex machine is:

• the same as a single simple machine

• two simple machine only

• two or more simple machines

• four simple machine

A wheelbarrow is an example of a complex machine. Which simple machine is NOT found in this object?

• lever

• wedge

• wheel and axle

_____ is a device that changes the force or increases the motion from work.

• Work

• Machine

• Simple Machine

• Compound Machine

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

______ is a machine that does work with only one movement of the machine.

• Work

• Machine

• Simple Machine

• Compound Machine

Machines are instruments that...

• help us to travel faster

• allow us to play videogames

• help us to write better

• make our work easier

Tags

NGSS.MS-PS2-1

What is the equation for mechanical advantage?

• MA=input force*output force

• MA=output force/input force

• MA=input force/output force

• MA= output force - input force

The efficiency of a machine can be increased by reducing __________________________. 

• effort

• resistance friction

• fulcrum

• friction

Give two examples of simple machines that work on bicycles.

• Pulley

• Wheel & Axle

• Wedge

• Lever

• Screw

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which choice is an example of a lever?

• Axe

• Seesaw

• Bottle Cap

• Tunnel