Compare described sounds
Compare described sounds using supplied evidence and a solved model.
About 12 minutes, plus any extended practice
Supplied materials
- For younger learners, an adult may read each direction aloud; pointing, drawing and spoken explanations count as responses.
- Paper, drawing space or a browser document.
- Reference card A: described faster vibration. Reference card B: described slower vibration.
- Assessment case 1: Which scientific label fits the specifically described step or feature? Supplied case: Same string vibrates faster.
- Assessment case 2: Which scientific label fits the specifically described step or feature? Supplied case: Same string vibrates slower.
- Assessment case 3: Which scientific label fits the specifically described step or feature? Supplied case: Record says sound level increases.
- Assessment case 4: Which scientific label fits the specifically described step or feature? Supplied case: Record says sound level decreases.
- Assessment case 5: Which scientific label fits the specifically described step or feature? Supplied case: Pitch rises while loudness stays fixed.
- Assessment case 6: Which scientific label fits the specifically described step or feature? Supplied case: Loudness falls while pitch stays fixed.
Learn the idea
Frequency describes vibrations per time; faster vibrations can make a higher pitch. Loudness and pitch differ. Early learners use the supplied labels rather than measuring sound.
Higher pitch means described faster vibration. Lower pitch means described slower vibration. Louder means described greater sound level. Quieter means described smaller sound level.
For higher pitch, look for the clue “described faster vibration.” For lower pitch, look for “described slower vibration.” More than one process can happen in a real situation. Answer about the one described in this question.
- Read or listen to the four science words and what each means. Say how the first two differ.
- Choose two of the short cases. Point to the clue that helps you choose a science word for each one. You may draw or say your answer.
- Answer each practice question. Say which clue helped you, then check the explanation.
- Use the extra task to make two examples that show different science words. Draw or say what makes each one fit.
See the method in action
Worked reference-card problem: a card states “described faster vibration”; a second states “described slower vibration.” The first fits higher pitch and the second fits lower pitch. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case.
Check your reasoning
Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.
Helpful tips
- Use the feature “described faster vibration” to justify higher pitch; do not sort by the name alone.
- Distinguish lower pitch (described slower vibration) from a different process occurring in the same situation.
See the answer and explanation
higher pitch
The answer is higher pitch. In the notes, it means “described faster vibration.” Frequency describes vibrations per time; faster vibrations can make a higher pitch. Loudness and pitch differ. Early learners use the supplied labels rather than measuring sound.
Take it further
Create one new case showing higher pitch and one showing lower pitch. Expected: the first explicitly shows “described faster vibration”; the second explicitly shows “described slower vibration.” Explain the distinction by drawing, speaking or writing. A label without a matching feature is incomplete.
Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.
More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
Your choices are temporary. Feedback appears after you check all the answers.
Nothing here is saved to an account or sent to a teacher. Keep your own notes or download them before leaving. The score describes these questions; it does not certify subject mastery.
Check the subject sources
These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.