simple Machines
Used to lift heavy objects, using a rope and a wheel.
Pulley
A lever has an effort arm of 9 meters and a load arm of 3 meters; this is its mechanical advantage.
3
This three-digit number represents the number of revolutions the driveshaft makes for every one revolution of the rear wheels.
gear ratio
This type of linkage, often used in drawers, ensures that the output motion remains parallel to the input motion.
Parallel Motion Linkage
While the bellcrank turns motion 90 degrees, this specific type of 4-bar linkage turns rotation into linear, back-and-forth, or "reciprocating" motion.
Crank and slider
A ramp is what type of simple machine?
Inclined plane
If an inclined plane is 10 feet long and 2 feet high, this is its ideal mechanical advantage.
5
Adjusting the motor to maximize acceleration and pulling power.
optimization of torque & speed
This linkage reverses the direction of input, causing the output to move in the opposite direction.
Reverse Motion Linkage
This pear-shaped disc rotates to convert rotary motion into reciprocating motion.
Cam
A bar or rod that turns in a fixed point, not a pulley.
Lever
Tweezers are an example of this specific type of lever, which provides a mechanical advantage of less than 1.
A third class lever
How do you calculate gear ratio?
Divide of teeth on the driven gear by the number of teeth on the driving gear.
This L-shaped, pivoting linkage is designed to turn the direction of motion or force through a 90-degree angle.
Bellcrank Linkage
This component stays in contact with the cam and moves up and down.
Follower
This one is two inclined planes placed back-to-back.
wedge
If a machine allows you to lift a 100-pound load with only 25 pounds of effort, what is the mechanical advantage?
4
To achieve a 1:4 gear ratio that maximizes speed, the driven gear should be this many times smaller than the driving gear.
four times smaller
In many bicycle braking systems, this type of linkage changes the linear pull from the handlebar cable to move the brake pads against the wheel.
Bellcrank
These are the two main components of a belt drive system used to transmit power between shafts.
Belts and pulleys
consists of a large wheel attached to a smaller central rod.
Wheel and Axel
A lever with an input arm of 4 meters and an output arm of 0.8 meters has this mechanical advantage.
5
When the driven gear is 12 teeth, and the driving gear is 36 teeth, this is the resulting speed increase factor.
3:1
These two types of linkages are often used for extending or holding objects like foldable clothes horses.
reverse motion
These are the two main components of a belt drive system used to transmit power between shafts.
Belt Drive