Question 5 • Physical Science Sem 1 (2003310) BCPS 2026-27
Ingrid wrote the hypothesis below.If the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart.What are the variables in her hypothesis?
Answer
A
The independent variable is the temperature, and the dependent variable is the density.
B
The independent variable is the density, and the dependent variable is the temperature.
C
The independent variable is the temperature, and the dependent variable is the distance between particles.
D
The independent variable is the distance between particles, and the dependent variable is the temperature.
Explanation
The independent variable is the factor being changed: the temperature of the liquid. The dependent variable is the result being measured: the liquid’s density. The distance between particles explains why the density changes, but it is not the outcome named in the hypothesis.
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