- #1
TomK
- 69
- 14
New poster has been reminded to only post one question at a time
- Homework Statement
- All of the following questions are from ENGAA 2019 (the pre-interview test for Cambridge's Engineering course). The questions are to be attempted without using a calculator. It has two separate sections (1 and 2). The correct answers are written next to each question below. I looked at some (unofficial) worked solutions online (http://www.engineeringadmissionsassessment.com/2019-solutions.html), but it didn't help me understand/finish the questions below.
- Relevant Equations
- Physics Equations: https://www.ocr.org.uk/Images/536433-data-sheet.pdf
Maths Equations (see page 2 and 3 for formula sheet, ignore the questions): https://www.ocr.org.uk/Images/535673-question-paper-pure-mathematics-and-mechanics.pdf
Section 1:
Q6 - answer: A -
Q11 - answer: B -
Q15 - answer: D -
Q17 - answer: E -
Q19 - answer: E - I got this question correct, but I didn't get an exact answer of '8', so I'm thinking my method was not optimal/has a degree of error? -
Q33 - answer: A -
Q35 - answer: E - https://imgur.com/a/8wjtXjl
Q36 - answer: D - https://imgur.com/a/IbAcLCkSection 2:
Q2 - answer: A - https://imgur.com/a/lshcAeO
Q5 - answer: E - https://imgur.com/a/Oj2lgUe
Q8 - answer: C - https://imgur.com/a/gafezZ5
Q11 - answer: C - https://imgur.com/a/BdkKjct
Q12 - answer: A - https://imgur.com/a/hWVPjov
Q13 - answer: B - https://imgur.com/a/5BNU0uy
Q14 - answer: C - https://imgur.com/a/kwBy3Bm
Q16 - answer: F - https://imgur.com/a/vp58SIn - I think I get why Statement 1 is right. Is it because, when the object is not in-motion, there is no air resistance, therefore weight force will be the only force acting down (which means magnitude of acceleration = g)? I don't know how to prove Statement 2 wrong. Statement 3 is correct, but is it because energy is wasted in every transformation (due to air resistance when in-motion)?
Q18 - answer: B - https://imgur.com/duOp1t8 - no working for this one, since I don't know what angle to choose (for theta) or how to know the other angles in the triangle?Thank you for any help.
Q6 - answer: A -
Q11 - answer: B -
Q15 - answer: D -
Q17 - answer: E -
Q19 - answer: E - I got this question correct, but I didn't get an exact answer of '8', so I'm thinking my method was not optimal/has a degree of error? -
Q33 - answer: A -
Q35 - answer: E - https://imgur.com/a/8wjtXjl
Q36 - answer: D - https://imgur.com/a/IbAcLCkSection 2:
Q2 - answer: A - https://imgur.com/a/lshcAeO
Q5 - answer: E - https://imgur.com/a/Oj2lgUe
Q8 - answer: C - https://imgur.com/a/gafezZ5
Q11 - answer: C - https://imgur.com/a/BdkKjct
Q12 - answer: A - https://imgur.com/a/hWVPjov
Q13 - answer: B - https://imgur.com/a/5BNU0uy
Q14 - answer: C - https://imgur.com/a/kwBy3Bm
Q16 - answer: F - https://imgur.com/a/vp58SIn - I think I get why Statement 1 is right. Is it because, when the object is not in-motion, there is no air resistance, therefore weight force will be the only force acting down (which means magnitude of acceleration = g)? I don't know how to prove Statement 2 wrong. Statement 3 is correct, but is it because energy is wasted in every transformation (due to air resistance when in-motion)?
Q18 - answer: B - https://imgur.com/duOp1t8 - no working for this one, since I don't know what angle to choose (for theta) or how to know the other angles in the triangle?Thank you for any help.