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