True or False
External Natural Forces
What Type of Force?
Describing Forces & Structural Efficiency
What Am I?
100

The human skeleton is a structure

True

100

What external natural force is a strong gust of wind that moves in a twisting motion?

Tornado

100

What is the pushing force called?

Compression

100

How do you measure structural efficiency?

What a structure can hold divided by its weight

100

I am a type of structure that is hollow on the inside and hard on the outside. Examples of me would be a dome and an egg

Shell Structure

200

A tornado is an example of an internal natural force

False (external!)

200

Name an external natural force that involves water

Hurricane, tsunami, thunderstorm...

200

What is the pulling force called?

Tension

200

What is the magnitude of a 50kg person sitting on a chair?

50kg or 500N

200

I am a type of structure that has a completely solid interior and exterior. Examples of me would be a brick and a rock.

Solid Structure

300

Torsion is one of the 4 types of forces

True

300

What is an external natural force we can potentially face in Winnipeg?

Tornado, Snow, flood...

300

What is the twisting force called?

Torsion

300

What direction is the effort going when a 50kg person is sitting on a chair? (effort = person)

Down

300

I am a type of structure that has rows and columns. Examples of me would be a house and a skeleton.

Frame Structure

400

Wood is a material that is strong against hurricanes

False

400

What external natural force was devastating California recently?

Wildfires

400

What is the sliding force called

Shear

400

Where is the point of application when a 50kg person is using a pull-up bar?

Where their hands touch the bar.

400

I am the place that you directly put effort on a structure.

Point of application

500

We calculate structural efficiency by dividing the mass of a structure by the maximum mass supported

False (the other way around)

500

Name something you could do to a house to make it more resistant to a flood

Elevate it, give it eavestroughs, build it out of concrete/steel...

500

Name all 4 types of forces

Shear, tension, torsion, compression

500
If an ant can hold 100mg of weight and weighs 2mg, what is the ant's structural efficiency?

50

500

I am the weight that you get your magnitude from when pressure is applied. What am I called?

Effort

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