comprehensive questions and verified
answers (complete solutions) GRADE A+
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The result is a smaller positive number, and is the same as ignoring the signs
and subtracting the smaller number from the larger. - - Describe the result
of adding a large positive number and a smaller negative number.
Divide the top number (Numerator) by the bottom number (denominator). - 📌📌-
How do you convert a fraction into a decimal?
You must find the lowest (Least) common denominator. - 📌📌 - What is the key
step that must be performed in order to add or subtract unlike fractions?
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You invert the divisor and multiply the numerators together and the denominators
together. - - How do you divide one fraction by another?
(1) Multiply the decimal by 100 and add the percent sign.
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(2) Move the decimal point two places to the right and add the
percent sign. - - How can you convert a decimal into a percent?
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Convert it to a decimal, move the decimal point two places to the
right and add the percent sign - - How do you convert a fraction into a
percent?
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Multiply the decimal by the desired denominator. The result
becomes the numerator in the traction. - - How do you change a decimal
into the nearest equivalent fraction?
(1) As a fraction.
📌📌- What are two
(2) By placing a colon (s) between the two numbers.
(3) By using the word '10" between the two numbers -
different ways that a ratio may be expressed?
📌📌- What is a
—
A statement of equality between two or more ratios. -
proportion?
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A root is two or more equal smaller numbers that, when multiplied
together, equal the specified number. - - What is meant by the root of a
number?
,Convert the numbers into scientific notation by using powers of 10. - 📌📌
- What
is a common method of making computations involving very large or very small
numbers more manageable?
10^5 (10 to the 5'" power). - 📌📌- How is 100.000 expressed as a power of 10?
For a rectangle,
A = L X W.
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For a triangle,
A = 1/2(B X H). - - What formula is used to find the area of a
rectangle and of a triangle?
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Pi is a constant that expresses the relationship between the
gigozngterence of a circle and its diameter and is approximately equal to -
Define Pi (π)
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A trapezoid is a closed, four-sided figure having two parallel sides
and two sides that are not parallel. - - Describe a trapezoid.
A=πr^2 - 📌📌- What is the formula for computing the area of a circle?
Any substance that occupies space and has mass. - 📌📌- Define matter.
Solid, liquid, gas, (Plasma). - 📌📌- Matter may exist in what three states?
Kinetic energy is the energy of motion, - 📌📌- Define kinetic energy.
Force and the distance moved, - 📌📌- Work is the product of what two factors?
A rigid bar and a pivot point called the fulcrum. - 📌📌- What are the parts of a
lever?
A second-class lever. - 📌📌- A wheelbarrow is an example of what class of
lever?
All three states are affected, with gases being affected the most. - 📌📌- Are all
three states of matter affected by thermal expansion and if so, which state is
affected most?
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The amount of heat energy required to change the temperature of 1 pound of
water 1 degree Fahrenheit. - - What is a British Thermal Unit?
Conduction, convection and radiation. - 📌📌- Name the three methods of heat
transfer?
, Pounds per square inch (PSI) - 📌📌
- What are the customary units used to
express hydraulic or pneumatic pressure in the United States?
Pressure is transmitted equally in all directions, - 📌📌 - Describe how pressure
is transmitted when a force is applied to a confined liquid.
Force equals area times pressure - 📌📌
- What formula expresses the
relationship between force, pressure and area?
661 Knots or 340 meters per second. - 📌📌- What is the approximate speed of
sound at sea level on a standard day?
29.92 inches of Mercury or 10132 millibars - 📌📌- What is the atmospheric
pressure at sea level on a standard day?
📌📌- On a standard day at sea level, what is the value for
-
59°F or 15°C. -
temperature?
Temperature and atmospheric pressure. - 📌📌- What are the factors that
determine density altitude?
Relative humidity. - 📌📌 - What is the term used to describe the ratio between
the amount of moisture actually present in the atmosphere as compared to the
amount the air could hold if it were
completely saturated?
Lift, drag, thrust and gravity. - 📌📌- What are the four principle forces acting on
an airplane in flight?
The Angle of Attack. - 📌📌 - What is the term that describes the angle between
the relative wind and the chord line of an airfoil?
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stall is caused when the angle of attack exceeds a critical value and the airflow
separates from the upper surface and becomes turbulent. - - What are the
factors that cause an airplane wing to stall?
Lift increases, drag increases and stall speed decreases. - 📌📌 - What are the
principle effects that result from lowering the flaps while in flight?
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Vortex generators delay or keep the airflow from separating from the
upper surface of a wing during high speed flight. - - What is the function of
a wing mounted vortex generator?