Wheels and axles
Example of a wheel and axle
cars, bikes, winch, door handle, fan, ferris wheel, pizza cutter, can opener
Example of a pulley
flagpole, crane, elevator, exercise equipment, volleyball net pole,
Example of a gear
can opener, bike gears, engines, equipment, lego
Example of an inclined plane
ramps, stairs, skate ramps, pyramids
This simple machine involves using ropes to lift objects
Pulley
The purpose of wheels and axles
it makes it easier to move heavy loads from one place to another
The purpose of a pulley
change the direction of the force to make it easier to lift heavy items
The purpose of gears
to increase speed or increase force
The purpose of an inclined plane
makes it easier to move an object to a lower or higher height
This simple machine is often used in engines and machinery
Gear
Name one type of force associated with this simple machine
input force, output force, or friction
The force called that causes objects to fall towards the ground
gravity
Does a bigger gear or smaller gear turn faster?
smaller gear
Will an inclined plane with a steep slope or a inclined plane with a gentle slope be easier to push a heavy object up?
a gentle slope
This simple machine means we do not have to jump to get from the first floor to the second floor
Inclined plane
On a fan, is the input force is applied to the wheel. True or false.
False
Will a single pulley or a two-pulley system require MORE force to move a weight?
a single pulley
Does a bigger gear or a smaller gear require LESS force to turn?
smaller gear
The force created when two objects come in contact with each other is called...
normal force
This simple machine is decreases friction
Wheel and axle
This simple machine is a type of wheel and axle
a gear
If we made a 5-pulley system it would be even easier to lift a weight than with the 2-pulley system. True or false.
True
1/2 way around
Name an example of an inclined plane other than stairs, ramps, or skate ramps
slide, screw, wedge, roof, hill, ladder, pyramids
A push or pull on an object that causes it to move
Force/effort