Diagram 1 illustrates a beam balance. A beaker fitted with a wire loop is in equilibrium with the standard masses. The beaker is then taken off and suspended from a spring. The spring stretches by $5.0\,\text{cm}$, as shown in diagram 2. The investigation is carried out again using the same apparatus on the Moon, where the acceleration of free fall is smaller than on Earth. Which statement describes what occurs on the Moon?
- AThe beam balance is balanced and the spring extends by $5.0\,\text{cm}$.
- BThe beam balance is balanced and the spring extends less than $5.0\,\text{cm}$.
- CThe right-hand balance pan is higher and the spring extends by $5.0\,\text{cm}$.
- DThe right-hand balance pan is higher and the spring extends by less than $5.0\,\text{cm}$.