Level 3 BTEC Engineering - Unit 1 Engineering Principals- Questions Answered Correctly (Graded A+)

Level 3 BTEC Engineering - Unit 1 Engineering Principals- Questions Answered Correctly (Graded A+) a^m X a^n - Answers a^(m + n) a^m ÷ a^n - Answers a^(m-n) (a^m)^n - Answers a^mn logA + logB - Answers logAB logA - logB - Answers log(A/B) xlogA - Answers logA^x cosine rule - Answers a² = b² + c² - 2bcCosA length of an arc of a circle - Answers s = r X theta Area of a sector of a circle - Answers A = ½ X r² X theta Volume of a cylinder - Answers V=πr²h Total surface area of a cylinder - Answers 2πrh + 2πr^2 Volume of a sphere - Answers 4/3πr³ Surface area of a sphere - Answers 4πr² Volume of a cone - Answers V=1/3πr²h Curved surface area of a cone - Answers π x r x l Quadratic Formula - Answers x = -b ± √(b² - 4ac)/2a acceleration due to gravity - Answers 9.8 m/s^2 permittivity of free space - Answers 8.85 x 10^-12 Permeability of free space - Answers 4π X 10^-7 X H/m final velocity - Answers v = u + at distance - Answers s = ut + ½at² direct stress - Answers F/A direct strain - Answers ∆L/L shear stress - Answers F/A shear strain - Answers a/b Young's Modulus - Answers stress/strain modules of rigidity - Answers t/y