Task 1 · easy
Primary density
The body has a mass of 100 g and a volume of 50 cm3. Calculate density.
Hint and solution →Original practice tasks · Physical · Class 7
Density — tasks with solutions
Start with the easier exercises and work your way up. Every task has a hint and a full step-by-step solution — try it on your own first, then unlock the solution and compare.
Easy
5
Medium
3
Hard
2
Task 2 · easy
Data density
The mass is 45 g and the volume is 15 cm3. Calculate density.
Hint and solution →Task 3 · easy
Calculate mass
The material density is 5 g/cm3 and the sample volume is 8 cm3. Count the mass.
Hint and solution →Task 4 · easy
Calculate volume
Body weight is 30 g and density is 2 g/cm3. Calculate volume.
Hint and solution →Task 5 · easy
Water mass
Accept water density 1 g/cm3. What is the mass of 250 cm3 of water?
Hint and solution →Task 6 · medium
Convert Unit
Convert 2700 kg/m3 to g/cm3.
Hint and solution →Task 7 · medium
Convert the other way
Convert 0,8 g/cm3 per kg/m3.
Hint and solution →Task 8 · medium
Material comparison
Two cubes have the same volume. The first mass is 120 g, the second is 80 g. Which one's got more density?
Hint and solution →Task 9 · hard
First units
The body has a mass of 1.2 kg and a volume of 500 cm3. Calculate density in g/cm3.
Hint and solution →Task 10 · hard
Volume of density
The sample has a mass of 540 g and a density of 2,7 g/cm3. Calculate volume.
Hint and solution →Karta pracy do druku
Ten sam temat w wersji na kartkę: instrukcja, zadania i miejsce na odpowiedzi. Wydruk jest bezpłatny.
Otwórz kartę pracy →After the tasks
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