Question | Answer |
What is a structure? | Anything made of parts put together for a particular purpose. |
What is the difference between form and function? | Form is the physical appearance of a structure, and function is the purpose of a structure. |
What is a force? | A push or a pull. |
What is gravity? | The force of attraction between all objects. |
What is the difference between applied and non-contact forces? | Applied force is a force that pushes or pulls an object when objects come in contact and a non-contact force is a force that pushes or pulls things without any contact. |
What is the difference between mass and weight? | Mass is the quantity of matter in an object and weight is the force of gravity acting on an object. |
What are the instrument is used to measure mass and weight? | A spring scale. |
What units are used to measure mass and weight? | Mass is measured in grams and weight is measured in newtons. |
What is the direction of force? | Up, down, left, right, or sideways are common directions. |
Do forces have magnitude? | Yes. |
What is the difference between dead, live, and dynamic load? | A dead load is the weight of the structure itself. A live load is the weight of the objects that a structure supports. A dynamic load is a load on a structure that is caused by forces. |
What is a solid structure? Include an example. | An object that uses solid construction to support loads such as a dam. |
What is a frame structure? Include an example. | A network of parts that support loads such as the St. Mary Axe Building. |
What is a shell structure? Include an example. | A hollow structure with a curved shape providing high strength and rigidity such as a bike helmet. |
What is a combination Structure? | A structure that includes solid, frame, and she'll structures. Like the human body. |
What is the difference between internal and external forces. | Internal force is a force acting between 2 parts of a body, while an external forces is a force acting on an object. |
What is the difference between point of application and plane of application? | Point of application is the location where the force is applied, while the plane of application is the imaginary flat surface where the force passes. |
What is tension? | Pulling the particles of an object. |
What is compression? | Presses or squeezes the particles of an object together. |
What is torsion? | Internal twisting forces created in an object as a result of a twisting motion being applied to the object. |
What is shear? | Forces acting on an object as a result of pushes or pullsomething in opposite directions. |
What are 2 examples of tension? | A stretched skipping rope and a trampoline. |
What are 2 examples of compression? | Kicking a soccer ball and step on the sole of your shoe. |
What are 2 examples of torsion? | Turning a doorknob and when a washcloth is squeezed. |
What are 2 examples of shear? | Shears or scissors. |