wizzkids
Well-Known Member
- Joined
- Jul 13, 2016
- Messages
- 436
- Gender
- Undisclosed
- HSC
- 1998
2025 HSC Physics examination
Question 28
Regrettably the state's bright Physics students have been disadvantaged (again!) by poor editing and proof reading by the examination committee.
Question 28 was highly ambiguous thanks to a poorly drawn diagram (I have edited the diagram below by showing a second icon for bicycle). The question forced students to play the silly game of, "guess the answer in the the head of the examiner". The icon of the bicycle was placed some distance from the start of the ramp, which will probably lead 50% of the students in the state to include the additional kinetic energy required to reach the top of the ramp (16 m/s plus an additional 6 m/s speed = 22 m/s). Whereas probably the examiner was intending the students should assume that only the projectile motion across the 16 m gap between the ramps needed to be calculated (in which case they will get a lower answer of 16 m/s). But who knows? The diagram is just appalling. The head examiner must accept that there are two correct answers, 16 m/s and 22 m/s because the diagram was so ambiguous.
Question 28
Regrettably the state's bright Physics students have been disadvantaged (again!) by poor editing and proof reading by the examination committee.
Question 28 was highly ambiguous thanks to a poorly drawn diagram (I have edited the diagram below by showing a second icon for bicycle). The question forced students to play the silly game of, "guess the answer in the the head of the examiner". The icon of the bicycle was placed some distance from the start of the ramp, which will probably lead 50% of the students in the state to include the additional kinetic energy required to reach the top of the ramp (16 m/s plus an additional 6 m/s speed = 22 m/s). Whereas probably the examiner was intending the students should assume that only the projectile motion across the 16 m gap between the ramps needed to be calculated (in which case they will get a lower answer of 16 m/s). But who knows? The diagram is just appalling. The head examiner must accept that there are two correct answers, 16 m/s and 22 m/s because the diagram was so ambiguous.
Last edited: