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Which type of mechanism do we use in a corkscrew and sliding doors?
A rack and cog.
Several cogs that are connected.
Gears
It transmits the movement from one cog to another
A chain
It moves in a straight line when a cog turns:
A Rack
Several cogs that are connected.
Gears
When we turn one cog it transmits movement to the other cog thanks to the chain. Both cogs move in..........direction
The Same
Diferent
Which type of mechanism are pedals on a bicycle?
Cog and Rank
Gears
Cranks
Cog and chain
The cogs on a bicycle … .
make the back wheel spin and they are on axles
are on axles
make the back wheel spin
Before cleaning a toaster, you should … .
get it wet
empty it
unplug it
have some toast
If your TV breaks, you should …
try to fixed
throw it out
give it to your little brother
buy a new one immediately
What moves in a straight line when a cog turns?
Gear
Pulley
Rack
Chain
What are the simple machines in scissors?
Levers and Pulley
Wedge and Incline plane
Levers and Wedges.
Wedge and Screw
We have .... in clocks and wind-up toys.
gears
levers
chains
bateries
