How this works
1. Answer every question — auto-mark items (Parts A, C, D) tell you immediately if you got it right.
Short-answer items (Part B) are checked against a model answer, and sketch tasks (Part E) you upload to Google Classroom.
2. Your answers save automatically as you type. You can close the browser and come back.
3. When every question is answered, the Submit button at the bottom unlocks. Click it to see your score and the correct answers.
4. After you submit, follow the instructions to share your result in Google Classroom (details appear when you submit).
Tip: skip if stuck and come back — don't spend more than 5 minutes on any single question.
Who are you?
Your diagnostic result
Score by part
Question-by-question review
Green = correct, red = incorrect, orange = you marked yourself. For short-answer questions, compare your answer with the model answer and use the buttons to award yourself marks honestly.
🚀 Extension Corner — for early finishers
Already done and the bell hasn't gone? Pick ANY ONE task below. Do it in your exercise book, a Google Doc, or a new note — then mention in your private comment which task you chose. These count toward your first Phase-1 folio stamps.
🔍 Bridge Spotter Challenge
Open this tab: PBS Building Big — Bridge Basics. Pick 3 bridges you've never heard of. For each, write:
- Its name + country
- Bridge type (beam / arch / truss / suspension / cable-stayed)
- ONE reason the engineer chose that type (span length? water below? cost?)
Why it matters: In L02 we study exactly this — you'll be ahead.
📖 Glossary head-start
Open the Bridge Workbook Folio and jump to the Glossary (23 terms). Define any 10 terms in your own words — don't just copy a dictionary. Examples of words you'll see: span · pier · abutment · deck · truss · compression · tension · triangulation · cantilever · load.
Why it matters: The folio is 50% of your term grade. Starting early = stress-free later.
🇦🇺 Sydney Harbour Bridge deep-dive
Find the answers to all 5 questions (use Wikipedia or britannica.com, cite your source):
- What year did the SHB open?
- How long is the main arch span (in metres)?
- Who was the chief engineer?
- Approximately how many tonnes of steel does it contain?
- Why was an ARCH shape chosen for the span rather than a suspension bridge?
Why it matters: You'll reference SHB 15 times this term — know it cold.
✏️ Sketch 3 bridge ideas
You'll soon design a bridge that spans a 500 mm gorge using only 119 plain paddle-pop sticks + 16 holed sticks + clothes pegs + PVA (NO hot glue, NO middle piers). In your exercise book, sketch 3 very different bridge concepts that would fit these rules. Label each with the bridge type it's based on (truss? arch? beam? cable-stayed?). Circle your favourite and write ONE sentence on why.
Why it matters: Saves you a whole lesson in Phase 2 (idea generation).
🎯 Predict the load test
A typical Year-7 paddle-pop bridge (500 mm span, PVA glue, all triangulated) breaks somewhere between 2 kg and 30 kg of applied load. Write a short prediction (3 sentences) answering:
- What weight do YOU think your team's bridge will hold?
- What ONE design choice will make the biggest difference — more triangles, stronger joints, fewer sticks wasted, or shorter span?
- How would you TEST your prediction before Load Test Day (Lesson 20)?
Why it matters: The Evaluation at the end of term is 30% of your grade and asks exactly these questions.
🧠 BONUS — Learn from your own diagnostic
Scroll up and find ONE question you got wrong (red border in the review). In 3 sentences in your exercise book:
- What was the correct answer?
- Why do you think you got it wrong — careless, never seen it, or confused between two options?
- How will you remember it next time?
Why it matters: Metacognition — knowing HOW you learn is a gifted-student superpower.
Remember: one task is plenty. Quality over quantity — Ms Gao would rather see one thoughtful task than five rushed ones. Add a short note about your chosen task in your Google Classroom private comment.
📤 How to send your result to Ms Gao
- Copy the summary below (click Copy result).
- Go to Google Classroom → Bridge It Diagnostic (Lesson 1).
- Click Private comment on the assignment and paste your result. Add a photo of your Part E sketches if you did them on paper.
- Mark the assignment as Done. Your tier placement will be posted by Friday.
Your result summary will appear here after you click Submit.
Can't copy? Use the download button, then attach the .txt file to your Google Classroom private comment instead.