science exam 7

Description

for science test
Cole John
Flashcards by Cole John, updated more than 1 year ago
Cole John
Created by Cole John almost 4 years ago
14
0

Resource summary

Question Answer
What is Form? It is the physical form of a structure
What is Function? It is the purpose of a Structure
A Force is ____ ___________ ____ __________ A push or pull
What is an applied force? It is a force that is applied by a human or object
How does Magnitude effect forces? Magnitude is mass so it limits how far something can go.
What is the Point of Application? It is where the forces are originally applied
How does direction affect a force? It affects where the structure will go
What is Mass? How much stuff is in something
What is Weight How heavy something is
What are Static Loads They are Loads caused by Gravity
What are Dynamic Loads An outside force that acts on the Structure
What are Live Loads The things the Structure is meant to support, can be taken away and placed.
What are dead loads The mass of the Structure itself
What is a sollid sturcture It is one part and has no hollow interior
What is a Frame Structure? It is a structure that is made of many parts and needs all the parts to stay intact
What is a Shell Structure? It is a structure that has a solid outside and a hollow inside
What is a drawback of a combined structure It takes much more expertise to construct.
What is a drawback of a shell structure Shell is a string but there is no view out
What is a drawback of a frame structure It is light but not the strongest
What is a drawback of a solid structure? It is strong but very heavy
A house is what? A combined sturcture
The Sydney Opera House is what? A shell Structure
A truss is what? A frame
A block of cement is what? A solid structure
What is the 1 external force? Gravity
What are internal forces Everything else
What is Torsion This is a twisting motion
What is Tension It is a pull from both opposite sides of a sturcture
What is Compression When there is a push-down against a structure
What is Sheer force? This is were the force is so extent that it causes damage to the sturcture
Cutting paper with scissors is? Sheer Compression
Twisting a rag until the water comes out is an example of what? torsion Tension
Sitting on a chair is? Compression
playing tug of war is? Tension
What is the correct order for the scientific method It is Problem, Hypotossiess, Materials, Procedure, Observations, Analysis, Discussion, Conclusion
What is Problem It is the question that will be awncerd with the expairment
What is Hypotheses It is a prediction on the outcome of the expairment
What is Materials They are the Materials that are needed for the expairment
What is Procedure It is the steps taken to perform the expairment
What is Obeservation? This is where you write what you observed during the expairment. No inferences are allowed to be here
What is Analysiss These are the results for the expairment tipicly shown in a graph
What is Discousion? These are paragraphs duscousiong your results where you draw conclusions and discuss sources of error and how you could make your expairment better
What is Conclusion? This is where you state if your hypothesis was correct, what you learned and if your experiment was succesful.
What is a qualitative observation are discribed observations that do not involve numbers. EX: it is blue, it was says tesla
What is a quatitative observation it is an observation that invoves the use of numbers. EX: there are four
What is inference? it is when you make educatied guesses about an observation. For EX: it looks old, it looks damaged
Is the interaction between structures and forces is predictable true or false? true
Not all sturctures have a purpose, ture or fulse? Faulse
A perfect center of gravity leads to what? A more stable structure
A wide base and narrow top lead to what? A more stable sturcture
Dome: Shell structure that looks like the top half of a sphere
Arch: A curved structure used to span a space while supporting a load
Truss a network of beams arranged into triangles
Cantilever: A beam supported olny at 1 end
Rebar: Metal roads that have concrete poured on top of them to make a stronger sturcture
Corrugation: Mutiple folds in a material that provide additional strength
I-beam: a beam that is in the shape of the letter I when seen from the end, saves weight
Beam: Horizontal structure designed to support a load
Symmetry when both sides are exactly the same shape
What is a biotic factor? A living factor
what is an abiotic factor A non living factor
Do they depend on each other (yes or no) yes
Are ecosystems in a constant state of change? (yes or no) yes
olny humans can change a ecosystem (yes or no) no nature can as well
Human impacts can alter the einviorment. Should we be aware of this (yes or no) yes
is rock biotic or abiotic abiotic
is bacteria aboitc or boitc biotic
What is an orginisum? It is a living thing
what is a population It is a group of orginisums of the same species in a certain area
what is community it is a group of populations of different species in a certain area
What is an ecosystem? it is the network of interactions that link the living and non-living parts of an enviorment
What is a biome Biomes are regions of land with characteristic climate, soil, and organisms.
What is the biosphere it is the sphere in where life is living
What are the roles of varios orginsiums? They all have a massive role of transferring energy from one animal to another so that life can exist
What is compitition? When more than one organism tires to obtain the same basic resources in the same habitat
What is preditation this is when one organism (the preditor) will hunt another organism (its prey)
what is symolisess Symbiosis is any type of a close and long-term biological interaction between two different biological organisms
What are the two types of consumers Primary and secondary
What are food chains and what are their purpose food chains show where animals get there food from. there purpose is to show where they get there food from and where it goes
What is the diffrence between a food web and chain A food web is more zoomed out and shows multiple different food sources for different animals rather than just 1
what is a detrivore it is an orginsasum that feeds on large plant sof decaying plant and animal matter and on waste material
what is a decomposer it is an organism that consumes and breaks down dead organisms or waste matter into simple substances
What are scavengers an orginsum that eats allready dead orginusms
The water cycle is when water evaporiates into the sky, than condansates and rains, than travels into large body of water and that evaporates again
The carbon cycle is when photosyptisess producers inhale c02 and then it ether ends up in the ground (fossil files) in the air again, or in other organisms. When the other organisms die it ends up back in the air and when fossil fuels are burned it also ends up in the air.
What does an ecological pyrmid show? An ecological pyramid is a visual way to show the effects of loss of energy as we move up the trophic levels in a food web. The base of the pyramid is the producers. Each higher level corresponds to the primary, secondary, and tertiary consumers with the highest predator at the top.
How much energy is passed form 1 torpic level to another olny 10 percent
Show full summary Hide full summary

Similar