• Rosehill College

• BUSSINES 522

VCE Physics Unit 1
Written Examination
Question and Answer Booklet

Question 1
A Physics student measures his body temperature with a thermometer to be 37°C. He needs to covert this to
a temperature in Kelvin.
What is his temperature in Kelvin?
A. –310 K
B. –236 K
C. 233 K
D. 310 K
Question 2
Considering the formula calcohol = 2400 J kg–1 K–1, what is the change in temperature if 2184 J of heat is
gained by 70 g of alcohol?
A. 168°C
B. 91°C
C. 13°C
D. 7°C
Question 3
The Sun is a yellow-white star with a peak intensity at about 500 nm.
Considering the formula σWein = 2.9 × 10–3 mK, what is the temperature of the surface of the Sun?
A. 5.8 × 10–6 K
B. 1.8 × 10–4 K
C. 5.8 × 103 K
D. 1.8 × 105 K
Question 4
A liquid is stirred vigorously and in doing so, the internal energy of the substance increases by 800 J.
If 1 kJ of work was done on the liquid by the stirring mechanism, which one of the following statements
about the liquid’s thermal energy is true?
A. 200 J is gained from the surroundings.
B. 200 J is lost to the surroundings.
C. 1800 J is gained from the surroundings.
D. 1800 J is lost to the surroundings.
Instructions for Section A
Answer all questions in pencil on the answer sheet provided for multiple-choice questions.
Choose the response that is correct or that best answers the question.
A correct answer scores 1; an incorrect answer scores 0.
Marks will not be deducted for incorrect answers.
No marks will be given if more than one answer is completed for any question.
Unless otherwise indicated, the diagrams in this booklet are not drawn to scale.
VCE Physics Unit 1 Trial Examination Question and Answer Booklet
Copyright © 2018 Neap PHYU1_QA_2018.FM 3
Question 5
A combined circuit with three resistors is shown in the diagram below.
Which one of the following correctly describes the current in the resistors?
A. current in R
1 = current in R2
B. current in R
1 = current in R2 = current in R3
C. current in R
1 = 4 × current in R2
D. current in R
2 = 4 × current in R1
Question 6
Consider the circuit below.
Given that each resistor in the circuit has a resistance of R Ω, what is the effective resistance of the
combined circuit?
A. 1.5 × R Ω
B. 2.0 × R Ω
C. 3.0 × R Ω
D. 5.0 × R Ω

R
2 = 40 Ω

VCE Physics Unit 1 Trial Examination Question and Answer Booklet
4 PHYU1_QA_2018.FM Copyright © 2018 Neap
Question 7
A household uses 4800 W of electric power from 6.00 pm to 8.00 pm.
If the power use is consistent every night and the tariff per kWh is 28.5 cents, what is the cost of energy
usage for a two-week period?
A. $2.74
B. $3.83
C. $38.30
D. $3830.40
Question 8
Consider the decay equation below.
What is the value of x?
A. 224
B. 226
C. 230
D. 232
Question 9
Given that 238U has a half-life of 4.5 × 109 years, the probability that a particular atom of 238U will decay in
1.4 × 1010 years is closest to
A. 0.13
B. 0.25
C. 0.50
D. 1.00
Question 10
Which of the following particles is not a lepton?
A. electron
B. positron
C. anti-electron
D. proton