Study guides, Class notes & Summaries

STEM Exam I Questions & Answers 2023/2024 When a space vehicle travels in a nearly circular orbit around Earth, is a force required to maintain is high speed? If the force of gravity were suddenly cut off, what type of path would the space vehicle follow? - ANSWER-The only force acting on the space vehicle is force of gravity. If the force of gravity was cut off, the vehicle would fly off in a straight line. If an object is moving, it continues to move without changing its speed, unless act...

Stem exam study guide questions & answers 2023/2024

Stem exam questions & answers 2023/2024 The first bridge was made from - ANSWER-stones and logs and vines. The four bridge types are - ANSWER-arch, beam, cantilever and suspension Designed the first all metal bridge - ANSWER-John Wilkinson stands for Mississippi Department of Transportation. - ANSWER-MDOT The first concrete road in MS is located in - ANSWER-Lee county are the raised sections on roads used to prevent accidents and collisions - ANSWER-Rumble strips The first...

Stem Final Exam Questions & Answers 2023/2024 In the compound MgCl2 the subscript 2 indicates? - ANSWER-there are two chloride ions for each magnesium ion Describe the properties of sodium chloride? - ANSWER-liquid, sodium chloride is a good conductor of electric current A typical property of an iconic compound? - ANSWER-tendency to shatter when struck when two atoms of the same nonmetal react, they often form? - ANSWER-diatomic molecule alkali metals, alkaline earth metals, ala...

STEM final exam study guide terms questions & answers 2023/2024 acceleration - ANSWER-an increase in the rate or speed of something actual mechanical advantage - ANSWER-AMA=output force/input force (without friction) balanced forces - ANSWER-when two conflicting forces have the same net force chemical energy - ANSWER-energy stored in the bonds of chemical compounds (atoms & molecules) that is released in a chemical reaction often producing heat complex machine - ANSWER- condu...

STEM exam flashcards questions & answers 2023/2024

STEM Test Questions & Answers 2023/2024 What qualities define a material? - ANSWER-chemical, physical, mechanical properties Define stress and it's SI units. - ANSWER-the resistance offered by a material to external forces or loads (N/m^2) Which quantity, stress or strain, can be measured directly in a stress-strain tensile test? - ANSWER-strain How can you distinguish a ductile material from a brittle material with the aid of a stress-strain diagram? - ANSWER-ductile material wil...

Stem Exam Review Questions & Answers 2023/2024 an unbalanced force that brings everything to the center of the earth - ANSWER-gravity the force with which you push something - ANSWER-reaction a change in velocity - ANSWER-acceleration speed in a given direction - ANSWER-velocity tendency of an object to keep its same motion - ANSWER-inertia the force the object pushes back - ANSWER-reaction for every action there is an equal and opposite reaction - ANSWER-newton's third l...

STEM Final Exam Questions & Answers 2023/2024 What are the science and engineering practices? - ANSWER-- Ask questions - develop and use models - plan and carry out investigations - analyze and interpret data - use mathematics and computational thinking - construct explanations and design solutions - engage in argument from evidence - Obtain, evaluate, and communicate information What are the technology practices? - ANSWER-- become aware of the web of technological systems on w...

Stem Final Exam Review Questions & Answers 2023/2024 Invention - ANSWER-The development of a brand new product that doesn't already exist. Innovation - ANSWER-The improvement of a pre-existing product. Science - ANSWER-The study of our natural world through observation. Technology - ANSWER-The way people develop new products to meet their wants and needs. Engineering - ANSWER-Using technological and scientific knowledge to solve practical problems. Mathematics - ANSWER-The s...