Simple machines - Review

What is the value of the IMA of the wedge?

You can write only the calculation

Mathematical Equivalence

ON

What kind of simple machine is a screwdriver?

• Screw

• Lever

• Wheel and axle

• Wedge

• Inclined plane

What is the value of the IMA here?

Mathematical Equivalence

ON

Identify the different parts of the lever

d

e

f

Resistance arm

Pivot

Load arm

Effort arm

User arm

Fulcrum

Put the simple machines in the following order (From left to right):

Lever, wheel and axle, pulley, inclined plane, wedge

• Lever

• 
• Wheel and axle

• 
• Wedge

• 
• Inclined plane

• 
• Pulley

• 

Tags

NGSS.MS-PS2-1

If an inclined plane has a MA of 5. How much input force would you need to put in to lift a 100 N car?

Mathematical Equivalence

ON

Tags

NGSS.MS-ETS1-1

Using a pulley you only need to apply a force of 2 N to lift a 20 N object. What is the MA of the pulley?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A wheel and axle has an MA of 4. You apply a force of 10 N. What is the heaviest object you can lift in Newton?

Mathematical Equivalence

ON

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

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