Energy and
Control
Control
what is this? This is the total energy of all the particles within a solid, liquid, or gas.
Thermal energy?
What is the structure and mechanism?
Anything with moving parts is called mechanism, while anything that can move as a whole is called a structure.
It is the smallest unit of a chemical element that retains the properties of that element. What is this?
Atom
what is a prey?
a prey is an animal that cathces and eats other animals.
Which gemstone gets its name from the Latin word granatus, which means “grain” or “seed,” in this case referring to pomegranate seeds?
garnets
What is particle theory?
The particle (or kinetic) theory of matter can be summarised as: All matter is formed of tiny particles. The particles are constantly randomly moving about. The particles can be arranged regularly or randomly. The particles are held together by weak or strong forces.
What is structure in mechanics?
An engineering structure is a term used to describe any set of interconnected bodies.
1. A mixture where one substance is dissolved in another. __________
2. A material that can be stretched or compressed and then return to its original shape. __________
1. Solution
2. Elastic
what is a consumer?
a consumer is an organism that depends on other living things for its food,all animals
True or False: Germans were the first to brew beer.
False; the first concrete evidence of barley beer comes from the ancient Sumerians of Mesopotamia (modern Iraq and Syria).
If electricity disappears, what other ways can you make electricity?
Solar: Solar panels can be used to convert the sun's energy into electricity.
Wind Power: Wind turbines can be used to convert the energy of the wind into electricity.
Hydroelectric power: Water from dams or rivers can be used to operate hydroelectric power plants to produce electricity.
Biomass power generation: Electricity can be produced by operating a power plant using organic materials or waste.
What is an example of a mechanism structure?
The chain and sprocket is one example o a mechansim
Why do metals, semiconductors, and insulators conduct electricity Differently?
Metals have many free electrons.
Semiconductors have fewer free electrons, conductivity increases with heat or light.
insulators have very few free electrons.
what is abiotic factors?
non-living factors that affect an ecosystem, such as climate, soil, topogrophy, and water.
In Sesame Street, one of the Count’s love interests is _______, who tallies numbers in descending order.
Countess von Backwards.
Convection, conduction, and radiation can explain their characteristics and roles well. Please create example sentences.
What is the difference between machine mechanism and structure?
A machine transforms the available energy into some useful work. Where the structure with no energy is transformed into useful work.
How does an STM work?
An STM uses a sharp tip and a small voltage to make electrons jump, creating a current that helps see atoms.
Tell the difference between food chain and food web.
A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid.
Which major aircraft manufacturer unveiled its lighter, smoother, more turbulent-resistant 787 Dreamliner in 2007?
Boeing
A heater consumes 10,000 kJ of energy to produce 8,000 kJ of heat energy. What is the efficiency of this heater in percentage?
The efficiency of the heater can be calculated as follows: Efficiency=(Produced heat energyConsumed energy)×100%=(8,000kJ10,000kJ)×100%=80%\text{Efficiency} = \left(\frac{\text{Produced heat energy}}{\text{Consumed energy}}\right) \times 100\% = \left(\frac{8,000 kJ}{10,000 kJ}\right) \times 100\% = 80\%Efficiency=(Consumed energyProduced heat energy)×100%=(10,000kJ8,000kJ)×100%=80%
4o
If a particular member of a truss structure suddenly fails, what strategies can engineers use to maintain the overall stability of the structure? Describe two specific methods.
1.Redundancy
2.Load Path Diversification
You have four different materials: glass, rubber, steel, and wood. You need to choose a material to use as a window pane, a car tire, a bridge, and a bookshelf. Match each material to its best application and explain why you chose each material for its specific use based on its properties.
Window Pane: Glass
Car Tire: Rubber
Bridge: Steel
What is the sequence of flower growing?
What piece on a chess board moves in an L-shape?
The knight