A student's working
- uy = 18.0 sin 25 = 7.61 m/s upwards
- Taking up as positive, s = -35.0, a = -9.8
- -35.0 = 7.61t - 4.9t^2
- 4.9t^2 - 7.61t - 35.0 = 0
- t = (7.61 + sqrt(57.9 + 686)) / 9.8
- t = 3.56
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For NSW Year 12
PrepHSC sets a full practice paper in the HSC layout and times it like the exam. Then it marks every answer against the criteria and names the skill that cost each mark.
Free to start, no card. Full papers with Pro.
8 HSC subjects at launch, March 2027
Section I: Multiple choice
Physics is open now. The other seven open at launch, March 2027.
Physics, Modules 5 to 8: every question is written to a syllabus dot point
Watch an answer get marked
A Physics test answer we wrote and sent through the real marker, shown unedited: each criterion checked, the lost mark traced to its skill, then a question that works on that skill.
4 of 5 marks against the criteria
From the two test answers to this question marked in that run.
Works on: units and significant figures in a final answer
A ball is kicked from level ground at 20.0 m/s, directed 30.0° above the horizontal. Air resistance is negligible. Take g = 9.8 m/s².
(b) The initial vertical component of the ball's velocity is 10.0 m/s. Calculate the time the ball is in the air.
3 marks · an example of a question on this skill
How it works
Pick multiple choice or written. Type your answer, or take a photo of your working.
Written answers are marked by AI against the criteria, part by part, with a line on each mark you lose.
Every lost mark names the skill behind it, like resolving a vector or leaving off a unit.
Practice papers · Pro
Built to the HSC exam's layout from questions written to the syllabus and checked by our team. Papers are Physics only for now.
Pricing
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For parents
PrepHSC is practice. It is not a tutor, and its marks are not HSC marks.
Written answers are marked by AI against the criteria. AI can be wrong, so students can flag a mark for a person on our team to check.
Accounts and answers are stored in Sydney. Written answers go to our AI provider in the US to be marked. We never sell data, show ads or train AI on student work.
Cancel online from the Account page. Pro stays on until the end of the month or year you have paid for.
Students must be 13 or over, and under-18s confirm a parent or guardian knows they are signing up.
Questions
No. Questions are written to the NSW syllabus and marked against criteria the way HSC marking guides are, but marks are practice only. PrepHSC is not affiliated with or endorsed by NESA.
Multiple choice is checked automatically. Written answers are marked by AI against the criteria, and anything it cannot mark safely goes to a person on our team.
Yes. Take a photo of your working on paper. The AI reads it first, and your result shows what it read, so you can check it.
Multiple choice questions every day. No card needed.
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Section II: Written
Your next question works on the skill that has cost you the most marks so far.
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Physics (Modules 5 to 8) is open now. Chemistry, Biology, Maths Standard 2, Maths Advanced, Maths Extension 1, Maths Extension 2 and Ancient History open at launch in March 2027.