In your home, find FIVE places in which friction is useful.
Now find FIVE places in which it is useful NOT to have friction.
Write your answers in the comments section of this post - make sure you give your right name or the marks will go to someone else!
Brakes on a car
ReplyDeleteBrakes on a scooter
Iron
Vacum Cleaners
Creating heat with matches
Not USEFUL...
My dad and this foreign prime minister
... loads of friction there.
Static against the carpet leading to a shock
Plummeting to earth when in space (IMAGINATION)
Chalk board scratching
Sliding down a rough rope... OUCH!!
anonymous (i think that is how you spell it)
Useful:
ReplyDeleteCarpets:stop us from sliding around.
Chopping board:stop fruit and other items from sliding around when we cut them.
Plastic Cup:stops us from dropping them.
Rubber:uses friction to rub off pencil.
Towel:Produces heat which we use to dry ourselves.
Not Useful:
Doors:friction can stop them from running smoothly.
Roof:friction can stop rain from flowing off the roof.
Bath Tiles:friction can make water collect on bath tiles and rot sealant.
Sash windows:friction can wear away at sash cords and break the window.
Lock:friction can wear away at a lock and render it useless.
From Sam Stevens
Useful:Chopping Board,Matchbox,Rubber,Towel,Carpets.
ReplyDeleteNot Useful:Tiles,Lock,Roof,Doors,Rope
Harry Pape
Harry Pape
ReplyDeleteUseful:Carpets,Towels,Matchbox,Rubber,Plastic Cup
Not Useful:Lock,Doors,Tiles,Roof,Windows
bilal belkadi---
ReplyDeletebathroom shower mat, hoovering the carpet, nail on a wall, velcro,
astro trainers on astro turf?
not usefull,
rain on a sloping roof, light switch, garden slide, shoes on a wet floor,
useful:
ReplyDeletebike tyres
chopping board
headbands
rubber mat
carpet
not useful:
doors
rocking chair
hinges
on moving heavy pieces of furniture
broom
katie
Tiles hinges carpet brooms riifs and windows are not useful
ReplyDeleteBy Dev savania
Useful:
ReplyDeletebraking
produce heat
writting
lighting a match
Basketball players use it to make quick turns on the court
rubber
towel
fire
sliding down a rope
makes methods of transport slower
rubs off skin if you fall over
It stops objects from sliding endlessly
brushing your teeth
skiing
hammer hitting a nail
not to useful:
carpet burns
slide burns
on pulling objects, you spend more energy because of friction.
electric drills cannot be used continuously because they heat up due to friction.
moving heavy objects
Hanahmae Shirazi
xxx