Hello, dear friend, you can consult us at any time if you have any questions, add WeChat: zz-x2580
MUF0122 Physics Unit 2 Sample Examination
QUESTION & ANSWER BOOKLET
Structure of Examination
Section Type of question(s) Number of questions
Number of
questions to be
answered
Number of
marks
A Multiple-choice Questions 10 10 20
B Short-answer Questions 17 17 60
Total Marks 80
Instructions
Answer all questions
Section A questions must be answered on the Multiple-choice Answer Sheet provided on page 20. This
may be removed. Please fill in your details at the top of the page and place the completed Multiple-
choice Answer Sheet behind the front cover of this booklet.
Section B questions should be answered in the spaces provided in this Booklet.
• Show all working for questions worth multiple marks
• Answer should be given in scientific notation to the correct number of significant figures
Data sheets (pages 18 and 19) have been provided.
Throughout the paper use g = 9.81 m s-2 for the acceleration due to gravity at the earth’s surface.
Candidates must write clearly and in English.
Materials allowed:
• A non-programmable calculator (memory cleared) is allowed.
Candidates are to fill in the following. Do not write your name or your lecturer’s/teacher’s name on your
examination booklet(s).
Student ID Number:
Desk number:
Campus Location:
For Marker Use Only
A
MC
B
Q1
B
Q2
B
Q3
B
Q4
B
Q5
B
Q6
B
Q7
B
Q8
B
Q9
B
Q10
B
Q11
B
Q12
B
Q13
B
Q14
B
Q15
B
Q16
B
Q17
Total
Marker /20 /5 /4 /5 /3 /3 /6 /3 /3 /2 /6 /2 /2 /2 /2 /5 /4 /3 /80
Moderator
Examiner
Page 2 of 20
SECTION A – Multiple-choice questions
Instructions for Section A
Answer all questions on the Multiple-choice Answer Sheet on page 20.
Choose the response that best answers the question or completes the statement.
A correct answer scores 2; an incorrect answer scores 0.
No marks will be awarded if more than one letter is circled for any question.
Unless otherwise indicated, the diagrams are not drawn to scale.
You should spend approximately 20 minutes on this section.
Question 1
A child has glow-in-the-dark stickers on her bedroom ceiling that absorb energy when the light in the room
is on. They can be seen when the room is darkened because they
A. reflect light.
B. transmit light.
C. emit light.
D. absorb light.
Question 2
Infra Red (IR) and Ultra Violet (UV) are both categories of electromagnetic radiation. Which of the following
statements is false?
A. IR has a longer wavelength an UV.
B. UV travels faster in air than IR.
C. UV is more energetic than IR.
D. Both IR and UV undergo diffraction when passing through narrow gaps.
Question 3
White light is shone into the end of a long length of optical fibre. With some laboratory equipment, a physics
student finds that at the other end of the fibre, red light was emitted first, then other colours, and lastly,
violet coloured light was emitted. This is due to
A. refraction.
B. reflection.
C. diffraction.
D. dispersion.
Page 3 of 20
Question 4
The ‘pitch’ of a musical note is due to its
A. amplitude.
B. loudness.
C. frequency.
D. speed.
Question 5
A stationary charged particle produces
A. a negative charge.
B. a positive charge.
C. a magnetic field.
D. an electric field.
Question 6
Two charges have an electrostatic force of F newton between them. Both charges are doubled in size, and
the distance between them is also doubled. The force between them is now
A. F newton.
B. 2F newton.
C. 4F newton.
D. 8F newton.
Question 7
In a series circuit, which of the following is not true?
A. The current is the same in each element.
B. The potential difference across each element is always the same.
C. The power output of the circuit is the sum of the power output of each element.
D. The total resistance is the sum of the resistance of each resistance.
Page 4 of 20
Question 8
A step-up transformer
A. increases the voltage and decreases the current.
B. increases the current and decreases the voltage.
C. increases both the voltage and the current.
D. has poor efficiency.
Question 9
A radioactive source emits one type of radiation only. On investigation, it is found that the rays will penetrate
a sheet of aluminium, but will not penetrate 1 cm of lead. The radiation emitted will most likely be
A. beta particles.
B. alpha particles.
C. X rays.
D. gamma rays.
Question 10
The photoelectric effect is evidence that
A. light exhibits wave behaviour.
B. light exhibits particle behaviour.
C. light is neither a wave nor a particle.
D. it is too difficult to model light due to its duality.
Page 5 of 20
SECTION B – Short Answer questions
Instructions for Section B
Answer all questions in the spaces provided. If you wish to change an answer then cross it out and write
the new answer beside it.
Numerical answers should be given in standard form and with the correct number of significant figures.
The marks allocated for each sub question are indicated beside/below the question. No marks will be
deducted for incorrect responses.
In questions allocated more than 1 mark, appropriate working must be shown.
You should spend approximately 60 minutes on this section.
Use g = 9.81 m s-2 for the acceleration due to gravity at the earth’s surface.
Question 1 (Total 5 marks)
A section of optical fibre is shown below. The refractive index of the core and cladding are 1.5 and 1.4
respectively.
