Lesson 4: Wrapping up Unit 6
Concepts of Engineering an Technology Unit 6: Mechanical engineering
Unit 6 quiz
4. Why are mechanical skills important?
A. Engineering principles will e applied to machines.
B. Engineers will need creativity to build effectives machines.*
C. Engineers will need the tools to effectively problem-solve.
D. Engineers will be required to maintain the machines that they create.
5. An external combustion engine is to turbine as internal combustion engine is to....
A. oil
B. motor
C. steam
D. piston*
7. There are few uses for sulfuric acid.
True *
or
False
8. Much more is known about quantum mechanics than classical mechanics.
True*
or
False
11. Ford invented the quadricycle, which was...
A. a new type of production
B. the forerunner of automobile
C. a improved design for horse carriages
D. a type of bicycle that four people could ride*
12. Examining entropy is...
A. measuring disorder and randomness.
B. identifying regular patterns of movement.
C. studying how temperature impacts motions.*
D. determining where energy goes when transmitted.
13. Volatility relates to which of the following?
A. Electrons
B. Vaporization
C. Visualization
D. Decomposition*
14. A motor or engine does which of the following?
A. Uses electric energy exclusively.
B. Has fewer that two moving parts.
C. Converts energy into another form.
D. Are almost always dependent on chemical energy.
15. Which of the following best descries kinematics?
A. The causes of motion.
B. Very advanced algebra.*
C. How things move, not why.
D. Movement within the body.
16. What is the purpose of a flywheel?
A. To reduce friction.
B. To increase torque.
C. To store energy.*
D. To increase speed.
4. The correct answer is B. Engineers will need creativity to build effective machines.
5. The correct answer is D. piston.
7. The correct answer is False.
8. The correct answer is False.
11. The correct answer is B. the forerunner of the automobile.
12. The correct answer is A. measuring disorder and randomness.
13. The correct answer is D. decomposition.
14. The correct answer is C. converts energy into another form.
15. The correct answer is C. how things move, not why.
To answer question 4, "Why are mechanical skills important?" the correct answer is B. Engineers will need creativity to build effective machines.
To answer question 5, "An external combustion engine is to turbine as internal combustion engine is to..." the correct answer is D. piston.
To answer question 7, "There are few uses for sulfuric acid. True or False," the correct answer is False. Sulfuric acid has many uses in various industries such as manufacturing, chemical synthesis, and cleaning.
To answer question 8, "Much more is known about quantum mechanics than classical mechanics. True or False," the correct answer is False. Classical mechanics, which is based on Newton's laws of motion, has been studied for a long time and is well-understood compared to quantum mechanics, which deals with the behavior of particles at the atomic and subatomic levels.
To answer question 11, "Ford invented the quadricycle, which was..." the correct answer is B. the forerunner of the automobile.
To answer question 12, "Examining entropy is..." the correct answer is A. measuring disorder and randomness. Entropy is a measure of the randomness or disorder within a system.
To answer question 13, "Volatility relates to which of the following?" the correct answer is D. decomposition. Volatility refers to the tendency of a substance to vaporize or evaporate, often accompanied by decomposition or chemical changes.
To answer question 14, "A motor or engine does which of the following?" the correct answer is C. converts energy into another form. Motors or engines convert energy, such as chemical energy from fuel or electrical energy, into mechanical energy to perform work.
To answer question 15, "Which of the following best describes kinematics?" the correct answer is C. How things move, not why. Kinematics is the branch of mechanics that studies the motion of objects without considering the forces causing the motion. It focuses on describing the position, velocity, and acceleration of objects.