Jeppesen A&P General: Oral exam (CCC) Questions & Answers Already Graded A+

Describe the result of adding a large positive number and a smaller negative number - Answer-result is smaller positive number, same as ignoring the signs and subtracting smaller number How do you convert a fraction into a decimal? - Answer-Divide the top number by bottom number What is the key step in order to add or subtract unlike fractions - Answer-finding the lowest common denominator How do you divide one fraction by another - Answer-Invert divisor (flip over the second fraction) and multiply both numerators and denominators (top and bottom numbers) How can you convert a decimal into a percent - Answer-Multiply decimal by 100 and add % sign, or move decimal TWO places to the RIGHT and add % How do you convert a fraction to a percent - Answer-Convert to decimal, move decimal two places to the right, add % How do you change a decimal to nearest equivalent fraction - Answer-Multiply decimal by desired denominator, result becomes numerator of fraction (try to get closest to whole number) Two different ways a ratio can be expressed? - Answer-1- as a fraction 2- placing a colon between the numbers (5:54) 3- using the word "to" between the numbers What is a proportion? - Answer-a statement of equality (=) between two or more ratios: 1/2 = 4/8, 45/90 = x/100What is meant by the root of a number? - Answer-A root is two or more equal smaller numbers that when multiplied equal the specified number: the second (square) root of 9 is 3, the fifth root of 32 is 2 How do you find the square of a number? Give an example. - Answer-multiply the number times itself- 4 X 4=16, 10 X 10= 100 What is a common method of making computations involving very large or very small numbers more manageable? - Answer-Convert the numbers into scientific notation by using powers of 10. (7,234,000= 7.234 X 10^6) How is 100,000 expressed as a power of 10? - Answer-10 to the fifth what formula is used to find the area of a rectangle? - Answer-A=L(length) X W(width) Area of a triangle? - Answer-1/2 X B (base) X H (height) Define Pi - Answer-A constant that expresses the relationship between circumference and diameter of a circle, approximately 3.14159 (number of times the diameter goes into the circumference) Describe a trapezoid - Answer-A trapezoid is a closed, four-sided figure having two parallel sides and two sides that are not parallel. What is the formula for the area of a circle? - Answer-A = Pi X Radius squared (radius is half diameter) Define matter - Answer-Any substance that occupies space and has mass Name three states of matter - Answer-Solid, Liquid, gas Define kinetic energy - Answer-the energy of motion Work is the product of what two factors? - Answer-Force and distance moved (W = F X D)What are the parts of a lever: - Answer-A rigid bar and a pivot point called the fulcrum A wheelbarrow is what class of lever? - Answer-second class (first class: see-saw, third class: tweezers) Are all three states of matter affected by thermal expansion? If so, which is affected most? - Answer-All three are affected, gases are affected the most