Mechanical Advantage and Efficiency

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?

• 1

• 10

• 1000

• 100

Tags

NGSS.MS-PS2-2

if a load of a lever is 100 newtons and the force you apply is 20 newtons, what is your mechanical advantage?

• 120 N

• 5 N

• 2000 N

• 80 N

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NGSS.MS-PS2-2

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

What is the mechanical advantage if you lift a load of 300 newtons and you only push down with 50 newtons?

• 250

• 50

• 60

• 6

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the mechanical advantage of a lever with an effort arm of 4 meters and a load arm of 2 meters?

• 0.5

• 2

• 4

• 8

Tags

NGSS.MS-PS2-2

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

What is the primary function of machines in terms of force?

• Machines increase the output force

• Machines decrease the input force

• Machines convert energy from one form to another

• Machines create energy

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NGSS.MS-ETS1-1

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 the mechanical advantage of a machine that allows you to lift a 100 kg object with a force of 25 kg?

• 2

• 3

• 4

• 5