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Physics

Stage 6 · HSC questions by topic

About this subject

Physics

Atlas organises human-reviewed questions against the NSW Stage 6 Physicssyllabus. Every published question retains its exam source and page.

Syllabus: NESA Stage 6 (2017)
Explore the NESA Stage 6 (2017) syllabus topics

Module 5: Advanced Mechanics

  • Projectile Motion
  • Circular Motion
  • Motion in Gravitational Fields

Module 6: Electromagnetism

  • Charged Particles, Conductors and Electric and Magnetic Fields
  • The Motor Effect
  • Electromagnetic Induction
  • Applications of the Motor Effect

Module 7: The Nature of Light

  • Electromagnetic Spectrum
  • Light: Wave Model
  • Light: Quantum Model
  • Light and Special Relativity

Module 8: From the Universe to the Atom

  • Origins of the Elements
  • Structure of the Atom
  • Quantum Mechanical Nature of the Atom
  • Properties of the Nucleus
  • Deep inside the Atom
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10 questions found

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2024Trial
Q3

If an astronaut orbiting the Earth near its surface were to stand on a set of bathroom scales, why would there be a reading of zero?
A. The astronaut’s mass becomes zero.
B. The strength of the gravitational field is zero.
C. The pull of the Earth is balanced by the pull of the Moon.
D. The astronaut falls towards the Earth at the same rate as the space capsule.

1 mark
Multiple choice
2024HSC
Q13

aThe diagram shows two identical satellites, AA and , orbiting a planet.

A
BBB

Which row in the table correctly compares the potential energy, UUU, and kinetic energy, KKK, of the satellites?
A. UA>UBU_A > U_BUA​>UB​; KA<KBK_A < K_BKA​<KB​
B. UA<UBU_A < U_BUA​<UB​; KA>KBK_A > K_BKA​>KB​
C. UA>UBU_A > U_BUA​>UB​; KA>KBK_A > K_BKA​>KB​
D. UA<UBU_A < U_BUA​<UB​; KA<KBK_A < K_BKA​<KB​

1 mark
Multiple choice
2024Trial
Q13

Two satellites orbit a planet. One of the satellites has an orbital radius of 2.3×106 m2.3\times10^{6}\ \mathrm{m}2.3×106 m and a period of 7.6×104 s7.6\times10^{4}\ \mathrm{s}7.6×104 s. The other satellite has an orbital period of 1.3×105 s1.3\times10^{5}\ \mathrm{s}1.3×105 s. What is the orbital radius of this second satellite?
A. 1.3×106 m1.3\times10^{6}\ \mathrm{m}1.3×106 m
B. 3.3×106 m3.3\times10^{6}\ \mathrm{m}3.3×106 m
C. 3.9×106 m3.9\times10^{6}\ \mathrm{m}3.9×106 m
D. 5.1×106 m5.1\times10^{6}\ \mathrm{m}5.1×106 m

1 mark
Multiple choice
2024Trial
Q14

A 500 kg500\ \mathrm{kg}500 kg satellite is initially in a circular orbit with a radius of 10 000 km10\,000\ \mathrm{km}10000 km around the Earth. The satellite is then moved to a new circular orbit with a radius of 20 000 km20\,000\ \mathrm{km}20000 km.

What is the change in the gravitational potential energy of the satellite?
A. 1.5×103 J1.5\times10^{3}\ \mathrm{J}1.5×103 J
B. 1.5×109 J1.5\times10^{9}\ \mathrm{J}1.5×109 J
C. D.

1 mark
Multiple choice
2024Trial
Q21 (b)

Artificial satellites monitor weather conditions on Earth and are used for surveillance and communications. Such satellites may be placed in a geostationary orbit.
Explain what happens to the speed of a satellite when it moves to a lower orbit.

2 marks
Short answer
2024Trial
Q21 (a)

Artificial satellites monitor weather conditions on Earth and are used for surveillance and communications. Such satellites may be placed in a geostationary orbit.

(a) Identify TWO features of a geostationary orbit.

2 marks
Short answer
2024HSC
Q25 (b)

The mathematical model below shows the relationship between the orbital radius of a satellite and its period.

r3T2=GM4π2\frac{r^3}{T^2}=\frac{GM}{4\pi^2}T2r3​=4π2GM​

(b) A planet with five moons is discovered. The following graph is produced from observations of the orbital radius of the moons and their orbital periods, measured in Earth days.

Use the graph to calculate the mass of the planet.

4 marks
Short answer
2024HSC
Q25 (a)

The mathematical model below shows the relationship between the orbital radius of a satellite and its period.

r3T2=GM4π2\frac{r^3}{T^2}=\frac{GM}{4\pi^2}T2r3​=4π2GM​

(a) By considering gravitational force, show how this model can be derived.

2 marks
Short answer
2023Trial
Q8

The diagram shows the perigee and apogee of the Moon—two points in the Moon’s elliptical orbit around Earth.

Which of the following statements is correct?
(A) When the Moon reaches the apogee, its gravitational potential energy as well as its kinetic energy will be at minimum. It will move at a low velocity.
(B) When the Moon reaches the apogee, its gravitational potential energy as well as its kinetic energy will be at maximum. It will move at a high velocity.
(C) When the Moon reaches the perigee, its gravitational potential energy will be at a minimum and its kinetic energy will be at a maximum. It will move at a high velocity.
(D) When the Moon reaches the perigee, its gravitational potential energy will be at a maximum and its kinetic energy will be at a minimum. It will move at a low velocity.

1 mark
Multiple choice
2023Trial
Q13

For a planet orbiting a single star, which factors determine the planet’s orbital period?
(A) mass of planet; mass of star; radius of orbit
(B) mass of star; radius of orbit
(C) speed of planet; radius of orbit
(D) mass of star; mass of planet

1 mark
Multiple choice
1.0×1010 J1.0\times10^{10}\ \mathrm{J}
1.0×1010 J

1.0×1013 J1.0\times10^{13}\ \mathrm{J}1.0×1013 J