Structures
This structure relies on a thin outer covering to distribute forces evenly.
What is a shell structure?
The force acting on a rope during tug-of-war.
What is tension?
If this point stays inside the base of support, the structure remains stable.
What is the centre of gravity?
The force acting on a structure before damage occurs.
What is stress?
The strength or size of a force.
What is magnitude?
A dam and a pyramid belong to this category because most of their volume is filled with material
What is a solid structure?
The force acting on a column supporting a building.
What is compression?
A sports car has more stability because it has a lower ________
What is centre of gravity?
Repeated stress over time causes this.
What is structural fatigue?
Wind pushing a building sideways demonstrates this factor.
What is direction?
A bridge made of beams and rods is designed this way to maximize efficiency while minimizing material.
What is a frame structure?
The internal force most associated with scissors cutting paper.
What is shear?
Two identical structures exist. One has a wider base. Which is more stable?
What is the structure with the wider base?
The final stage when a structure breaks or collapses.
What is structural failure?
Pushing a door near the handle instead of the hinge changes this factor.
What is point of application?
This property compares the strength of a structure to its weight.
What is efficiency?
Twisting a wet towel demonstrates this force.
What is torsion?
A pickup truck is more likely to tip because it has this characteristic.
What is a high centre of gravity?
Winnipeg potholes are mainly caused by this repeating weather process.
What is the freeze-thaw cycle?
A hockey player shoots harder and the puck moves faster. Which factor changed?
What is magnitude?
A dome, eggshell, and helmet all share this structural characteristic.
What is a thin outer covering that supports load through force distribution?
An earthquake causes a building's floors to slide past one another. Name the internal force.
What is shear stress?
A structure becomes unstable when this occurs.
What is the centre of gravity moving outside the base?
Put these in order:
Failure, Stress, Fatigue
What is Stress → Fatigue → Failure?
A volleyball player spikes the ball hard toward the back corner while striking the exact centre of the ball. Name all three force factors involved.
What are magnitude, direction, and point of application?