This checkpoint tests Block D: technology, nature, investigations, argumentation and synthesis of waves and motion concepts.
This checkpoint assesses your ability to connect waves and motion concepts to technology, nature, investigations and argumentation.
Technology: medical imaging, communication, remote sensing using waves.
Nature: animal echolocation, seismic waves, wave behaviour in ecosystems.
Investigations: designing experiments, controlling variables, analysing and presenting data.
Argumentation: constructing scientific arguments, using evidence, evaluating claims.
Synthesis: integrating wave and motion knowledge to explain complex phenomena.
1. Which technology uses high-frequency sound waves to create images of unborn babies?
2. Bats use echolocation to navigate and find food. What type of wave do they produce?
3. In a fair test investigating how string length affects wave speed, the independent variable is...
4. Which of the following is an essential feature of a valid scientific argument?
5. How does a seatbelt relate to Newton's First Law during a car collision?
6. What is the best way to reduce random error when timing how long a pendulum takes to complete 10 swings?
7. The Doppler effect explains why...
8. Sonar is used by the Royal Australian Navy to detect objects underwater. What principle does sonar rely on?
9. A student claims: "Wearing polarised sunglasses is an example of light reflection." Which evaluation is most accurate?
10. Which statement best synthesises knowledge of waves and motion?
11. Evaluate how our understanding of one type of wave has led to a technology commonly used in Australian hospitals. Include the wave type, how the technology works, and one benefit to patients. 4 MARKS
12. Describe how you would investigate the relationship between the length of a pendulum and its period. Include the independent and dependent variables, at least two variables to control, and how you would ensure reliability. 4 MARKS
13. Construct a scientific argument for or against the statement: "Newton's laws are only useful in space, not in everyday life on Earth." Use at least two pieces of evidence from this unit to support your position. 4 MARKS
Tick when you have finished all questions and reviewed your answers.