friction quiz by mahin and hisham 8E

does the roughness of a surface

affect the friction applied on an object

• yes it

  does

• no it

  does not

• im not

  sure

• probably

what is friction

• the force that makes planets revolve

• the force that pushes down on everything

• the force that one object has respective to another while pushing against each other

• the force that moves things down slopes

does friction only affect soilds?

• yes

  it will only affect solids

• no will also affect liquids and gasses

• I'm not sure

• it can not affect any types of matter

what are the causes of friction

• the surface roughness

• body deformation

• shape of the object

• the color of the object

all types of friction that you learned in todays lesson

• sliding friction, rolling friction,

  static friction,

  kinetic friction.

• gravitational friction, sliding friction, rollling friction, liquid friction.

• sliding friction,

  magnetic friction,

  radioactive friction, newtonic friction.

• none of the above

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