Lesson 1, before we start. No marks — just your first thoughts.
Short answers are fine. You can write "I don't know". We are not testing you — we want to see what you naturally think before the unit. We will ask the same kinds of questions at the end.
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Section A
Question 1 · Does heat always rise?
A student says heat rises so warm air always goes up. Is this true for all ways heat moves? Explain using at least two transfer modes.
Section A
Question 2 · Why does ice float?
Most solids sink in their own liquid. Ice floats in water. What is different about how water behaves as it freezes?
Section A
Question 3 · Is electricity used up?
A student says electricity gets used up by the time it reaches the bulb. Do you agree? Explain.
Section A
Question 4 · Voltage vs current
Are voltage and current the same thing? If not, explain the difference in your own words.
Section B
Question 5 · Knife vs rolling pin
Same force on dough — knife cuts, rolling pin flattens. What is actually different between them?
Section B
Question 6 · Predicting circuits
One bulb in a circuit — predict brightness when a second identical bulb is added in series, then in parallel.
Section B
Question 7 · Thicker wire
A thicker wire always carries more current — always true? What else might matter?
Section C
Question 8 · Green electricity
NZ generates mostly renewable electricity. Does that mean a school using it is automatically efficient?
Section C
Question 9 · Your question
What is one thing you are genuinely curious about regarding electricity, forces, or heat?
Section C
Question 10 · Confidence
How confident are you about heat transfer, forces, pressure, and circuits? One thing you know; one you are unsure about.