Simple Machines
This simple machine has a fulcrum, effort force, and load. Also, it has three classes to classify it.
What is a lever?
It requires a counterweight to launch the projectile.
What is a trebuchet?
These engineers work on green projects that help the Earth.
What are environmental engineers?
This type of truss is located underneath the deck to give it support.
What is a deck truss?
After the excavation is completed for this type of tunnel, it is covered so that automobiles can drive over it.
What is a Cut and Cover tunnel?
The six types of simple machines.
What are levers, wedges, inclined planes, screws, pulleys, and wheels and axles?
It uses tension or torsion to launch a projectile.
What is a catapult?
The first step to the Engineering Design Process.
What is identifying the problem?
These structures are placed on both sides of an arch bridge to counterbalance it.
What are abutments?
Another name for shallow foundations.
What are footings?
The input force is between the load and the fulcrum for this type of lever.
What is a third-class lever?
This type of catapult is like a bow and arrow.
What is a ballista?
These engineers have created the dams, bridges, and roads we see while driving.
During a storm with violent winds, this bridge kept on moving up and down until it snapped because it wasn't properly constructed.
What is the Tacoma Narrows Bridge?
This type of foundation is a slab of concrete on soil. The weight of the structure is transferred through the slab to the soil.
What is a slab-on-grade foundation?
The direction of force is changed with this simple machine.
*Hint - It is not a lever.
What is a fixed pulley?
These projectiles were common to launch during Medieval wars to knock down castle walls.
What are large boulders?
These types of engineers work with and create medical devices. In fact, they have created the pacemaker.
What are biomedical engineers?
This type of load is produced by heavy and fast moving objects like cars and trains.
What is a shock load?
These tunnels don't require that much support during construction.
What are rock tunnels?
This system relies on friction to make it run.
What is a simple belt system?
The output force (at load) of a trebuchet divided by the input force (applied) of a trebuchet.
The last step of the Engineering Design Process.
What is improvising?
The block of an arch which supports the load of the whole bridge.
What is a keystone?
Impact-driven piles, drilled shafts, caissons, and helical piles.
What are the different types of deep footings?