To play online press the screenshot above and then the start button.

# Interactive Pressure Comparison.

 "Pressure Comparison" is a small knowledge level game to sort the objects by their correct value in order of pressure magnitude. Physics exercise to explore and study the pressure of different objects from lowest to highest. Fun educational game, suitable for online lessons and interactive classes. Free online game for physics homework. Online physics educational game. Fun physics puzzle.

This physics class game include the following objects:
• Average pressure in outer space between stars in the Milky Way - 5 fPa
• Atmosphere of the Moon at lunar night - 300 pPa
• Pressure inside a vacuum chamber for laser cooling of atoms - 10 nPa
• Reference pressure for sound in air - 20 µPa
• Average atmospheric pressure on Pluto - 200 mPa
• Pressure exerted by a US dollar bill resting flat on a surface - 1 Pa
• Standard atmospheric pressure for Earth sea level - 101 Pa
• Average atmospheric pressure on Mars - 600 Pa
• Explosion peak overpressure needed to break glass windows - 8 kPa
• Pressure of popping popcorn - 2 kPa
• Water pressure of a garden hose - 300 kPa
• Àtmospheric pressure of Venus - 9.2 MPa
• Pressure at bottom of Mariana Trench - 110 MPa
• Maximal chamber pressure during a pistol firing - 280 MPa
• Pressure needed for synthesis of diamond - 18 GPa
• Pressure inside Sun's core - 25 PPa

## How to play Pressure Comparison Puzzle.

 There are 11 round pictures of objectas with different pressure, which will appear randomly on the game screen. Drag and drop them in the correct slots according to their approximate pressure value in pascals, situated at the bottom of the screen. Sort all 11 objects to win the game.
Knowledge Achievements:
Know different pressure units and get +1 Knowledge Level.
Difficulty: Medium.

### Class subject: Pressure.

 Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area. the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre; similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and U.S. customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure.

This fun physics game may answer the following questions:
• Which is the lowest pressure?
• Which is the highest pressure?
• What is the pressure difference of objects?