Mrs. Love's Simple Machines and Mechanical Advantage

Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever (MA=Output Force/Input Force)?

• 1

• 10

• 100

• 1000

A box of weight W is lifted by a force F using a lever as shown below.

What is the mechanical advantage of the lever (MA=Input Distance/Output Distance)?

• 0.5

• 2

• 3

• 6

Tags

NGSS.MS-PS2-2

The mechanical advantage of this inclined plane is...(MA=Resistance Force/Effort Force)

• 2.4

• 3.4

• 4.4

Tags

NGSS.MS-ETS1-1

The amount by which a machine multiplies input force is known as the 

• work.

• power.

• output force.

• mechanical advantage.

a measure of the amount a machine multiplies a force is its

What is mechanical advantage?

• The advantage a machine has over a bicycle

• A measure of how much a simple machine reduces work

• A measure of when is the best time to use a simple machine

• the number of times a machine increases input force

Tags

NGSS.MS-PS2-1

The decrease in effort that is needed to move an object is called _____ advantage.

• work

• machine

• inclined planes

• mechanical

What is effort (input) force?

• the force one exerts on a machine

• the force which an effort force must overcome in order to do work on an object via a simple machine.

• the force the machine exerts on a object

• the output work times the input distance

Tags

NGSS.MS-ETS1-1

____________ ____________ is the ratio of output force divided by input force.

Mechanical advantage is a measure of how much a machine multiplies the input

• efficiency.

• force.

• power.

• work.