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

# Interactive Force Comparison. Which of the 11 objects is strongest?

 "Force Comparison" is a small knowledge level game to sort the objects by their correct value in order of force magnitude. Physics exercise to explore and study the force of different objects from weakest to strongest. 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:
• Brownian motion force on an E. coli bacterium averaged over 1 second - 10 fN
• Force to stretch double-stranded DNA to 50% relative extension - 100 fN
• Force to break a hydrogen bond - 4 pN
• Force to break a typical covalent bond - 1.6 nN
• Average force to break the shell of chicken eggs - 50 N
• Average force of human bite - 720 N
• The maximum force achieved by weight lifters 8 kN
• The bite force of one adult American alligator - 9 kN
• Maximum pulling force of a diesel-electric locomotive - 890 kN
• Thrust of Saturn V rocket at lift-off - 35 MN
• Gravitational attraction between Earth and Moon - 200 EN exanewtons

## How to play Force Comparison Puzzle.

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

### Class subject: Force.

 In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity or to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newton (N). Force is represented by the symbol F Concepts related to force include: thrust, which increases the velocity of an object; drag, which decreases the velocity of an object; and torque, which produces changes in rotational speed of an object. In an extended body, each part usually applies forces on the adjacent parts; the distribution of such forces through the body is the internal mechanical stress.

This fun physics game may answer the following questions:
• Which is the weakest force?
• Which is the strongest force?
• What is the force difference of objects?
• Which of the objects are weaker?
• Which of the objects are stronger?