GED Science TestPhysical ScienceEasy
A student measures the mass of a block as 150 grams and its volume as 50 cm³. What is the density of the block?
- A0.33 g/cm³
- B3.0 g/cm³
- C7500 g/cm³
- D100 g/cm³
Show answer & explanationAnswer & explanation
Correct answer: B. 3.0 g/cm³
Density is calculated by dividing mass by volume. So, 150 grams / 50 cm³ = 3.0 g/cm³.
Why the other options are wrong
- A. Incorrectly divided volume by mass (50/150).
- C. Incorrectly multiplied mass by volume (150*50).
- D. Incorrectly subtracted volume from mass (150-50).
Density
A measure of how much mass is contained in a given unit volume of a substance.
- Formula: Density = Mass / Volume (D = m/V).
- Common units: g/cm³ or kg/m³.
- Characteristic property of a substance.
Memory trick: Density: Don't Mess with Volume!