(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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Contact force
Rolling friction
Independent of area of contact surfaces
When one surface slides or moves over another sliding or kinetic friction.
Opposes motion
Nature of the surfaces
Due to irregularities
Kinetic friction
Produces heat
When one surface rolls over another surface is known as rolling friction.
Sliding friction
Friction
Due to adhesive force
Weight of the body
Wear and tear of machinery parts
Fluid friction
Friction offered by fluid due to liquid and gases.
Newton( N)
Liquid and gases collectively called as a fluid.
Static friction
When one surface is in rest over another is known as static friction.
When one surface slides over another then it opposes the motion of the body then it is known as friction.
