Green horse Forces Acting on Structures :) Sophia's purple cat

Bridges

100

What are the FOUR bridges that we have covered in class?

Arch, Truss, Suspension, Beam

200

An arch bridge has

What is an arch to transfer the load to supporters

300

A Truss bridge has

What is a beam composed of connected steel triangle 

400

An suspension bridge has

What is a beam hung from cables

500

A beam bridge has

What is a simple beam to support a load crossing a gap 

Simple Machines

100

List the six simple machines 

What is Inclined plane, Lever, Wedge, Wheel/Axle, Pulley and Screw

200

An inclined plane has

What is a flat slanted surface

300

A pulley is 

What is a wheel with a rope wrapped around it

400

A Lever is 

What is an object used with a fulcrum

500

A screw is 

What is a shaft with a spiral shaped groove on its surface

Classes of levers

100

How many classes of levers are there? 

What is THREE

200

A second class lever is when the

load is between the fulcrum and the effort

300

A seesaw is an example of which type of lever

First class lever

400

A third class lever is when 

when the effort is between the fulcrum and the load

500

A first class lever is when 

the fulcrum is between the load and the effort

Mechanical Advantage

100

If the Mechanical Advantage is 4 and the load is 40N. Calculate the force needed

What is 10N

200

If the length of the effort arm is 120 cm and the length if the load arm is 40 cm. What is the mechanical advantage?

What is 3

300

If the Mechanical Advantage is 5 and the load is 35N. Calculate the force needed

What is 7N

400

If the length of the effort arm is 200 cm and the length of the load arm is 20 cm. What is the mechanical advantage?

What is 10

500

If the length of the effort arm is 400 cm and the length if the load arm is 50 cm. The weight of the load is 48N What is the mechanical advantage? What is the force needed.

What is 8

What is 6N

Freestyle

100

what is a wedge?

A back to back inclined plane: May hold things together or pull them apart

200

If the length of the effort arm is 160 cm and the length if the load arm is 40 cm. What is the mechanical advantage?

What is 4

300

What is a wheel and Axle 

A wheel attached to an axle 

400

If the length of the effort arm is 350 cm and the length if the load arm is 50 cm. The weight of the load is 56N What is the mechanical advantage? What is the force needed.

MA= 7 

Force needed: 8N

500

A ramp is an example of which simple machine 

What is an inclined plane