what's simple machine?
a machine can make our life easier
name a simple machine which has a wheel inside?
a wheel and axle
what kind of work would a wheel and axle help with?
Force, Distance, Speed
what is Force?
strength or energy
What is "Output force" in wheels and axles?
The force put out by a wheel and axle.
What is "Input force" in wheels and axles?
The force put in by a wheel and axle.
Is input force greater than output force?
No, it isn't. Output force is much greater than input force.
In a car or bikes, do the wheels turn the axles or, the axles turn the wheels?
The axles turn the wheels
In door handles or screwdrivers, do the wheels turn the axles or, the axles turn the wheels?
The wheels turn the axles.
What is simple machine in Chinese?
簡單的機器
what is "Wheel and axle" in Chinese?
轮轴
what are "Gears"?
Gears are wheels with teeth that slot together.
Name 3 examples of Wheels and axles?
Car, Train, Fishing rod, Windmill, Bike, Wheelchair, Electric fan, Helicopter, Roller skates
