Density (GCSE) — GCSE Physics Revision
Revise Density (GCSE) for GCSE Physics. Step-by-step explanation, worked examples, common mistakes and exam-style practice aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), Pearson Edexcel International, OxfordAQA International, SQA, IB, AP.
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Go to States of MatterWhat is Density (GCSE)?
Density is a measure of how much mass is packed into a certain volume. It is defined as mass per unit volume. A dense material has a lot of mass in a small space. The formula for density is ρ = m/V, where ρ is density, m is mass, and V is volume.
Board notes: A core concept in all GCSE Physics specifications (AQA, Edexcel, OCR). Practical methods for measuring density are often tested.
Step-by-step explanationWorked examples
Worked example 1: Core method
A block of wood has a mass of 400g and a volume of 500cm³. What is its density? Solution: Density = Mass / Volume. ρ = 400g / 500cm³ = 0.8 g/cm³.
Worked example 2: Exam variation
Now change one detail in the question and keep the same structure: name the Density (GCSE) idea being tested, show the method or evidence, then explain why it answers the command word. This helps GCSE Physics students avoid memorising one surface pattern.
Worked example 3: Mark-scheme check
Finish by checking the answer against marks: one point for the correct Density (GCSE) idea, one for accurate working or evidence, and one for a precise final statement. If any step is vague, rewrite it before moving to timed practice.
Mini lesson for Density (GCSE)
1. Understand the core idea
Density is a measure of how much mass is packed into a certain volume. It is defined as mass per unit volume.
Can you explain Density (GCSE) without copying the notes?
2. Turn it into marks
A block of wood has a mass of 400g and a volume of 500cm³. What is its density?
Underline the method, evidence, or command-word move that would earn credit in GCSE Particle Model of Matter.
3. Fix the likely mark leak
Watch for this mistake: Confusing density with weight. A small, dense object can be heavier than a large, less dense object.
Write one correction rule before doing another practice question.
Practise this topic
Jump into adaptive, exam-style questions for Density (GCSE). Free to start; sign in to save progress.
Mini quiz: Density (GCSE)
Three quick checks for revision practice. They are original StudyVector prompts, not official exam-board questions.
Question 1
In one GCSE sentence, explain what Density (GCSE) is testing.
Answer: Density is a measure of how much mass is packed into a certain volume. It is defined as mass per unit volume.
Mark focus: Precise definition and topic focus.
Question 2
A Density (GCSE) question uses an unfamiliar context. What should the answer do before adding detail?
Answer: It should name the process, variable, equation, particle model, or evidence being tested, then explain the result using precise scientific vocabulary.
Mark focus: Method selection and command-word control.
Question 3
A student makes this mistake: "Confusing density with weight. A small, dense object can be heavier than a large, less dense object." What should their next repair task be?
Answer: Do one Density (GCSE) question and review the mistake type.
Mark focus: Error correction and next-step practice.
Density (GCSE) flashcards
Core idea
What is the main idea in Density (GCSE)?
Density is a measure of how much mass is packed into a certain volume. It is defined as mass per unit volume.
Common mistake
What mistake should you avoid in Density (GCSE)?
Confusing density with weight. A small, dense object can be heavier than a large, less dense object.
Practice
What is one useful practice task for Density (GCSE)?
Answer one Density (GCSE) question and review the mistake type.
Exam board
How should you use board notes for Density (GCSE)?
A core concept in all GCSE Physics specifications (AQA, Edexcel, OCR). Practical methods for measuring density are often tested.
Common mistakes
- 1Confusing density with weight. A small, dense object can be heavier than a large, less dense object.
- 2Using the wrong units. The standard unit for density is kilograms per cubic metre (kg/m³), but grams per cubic centimetre (g/cm³) is also commonly used.
- 3Incorrectly calculating the volume of an irregular object. The displacement method (submerging the object in water and measuring the volume of water displaced) is used for this.
Density (GCSE) exam questions
Exam-style questions for Density (GCSE) with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), Pearson Edexcel International, OxfordAQA International, SQA, IB, AP specifications.
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Step-by-step method
Step-by-step explanation
4 steps · Worked method for Density (GCSE)
Core concept
Density is a measure of how much mass is packed into a certain volume. It is defined as mass per unit volume. A dense material has a lot of mass in a small space. The formula for density is ρ = m/V, w…
Frequently asked questions
How do you measure the density of an irregular object?
First, measure the mass of the object using a balance. Then, find its volume by submerging it in a eureka can filled with water and measuring the volume of water that is displaced into a measuring cylinder. Finally, use the formula density = mass/volume.
Why does a hot air balloon rise?
Heating the air inside the balloon makes it less dense than the cooler air outside. This difference in density creates an upward buoyancy force, causing the balloon to rise.