Question

q5. which object would float in both oil and water? a. rock b. cork c. steel ball d. glass

Explanation:

To determine which object floats in both oil and water, we use the principle of buoyancy (Archimedes' principle): an object floats if its density is less than the fluid’s density.

• Rock: Denser than both oil and water → sinks.
• Cork: Density is less than both oil and water (oil is less dense than water, and cork is less dense than oil) → floats in both.
• Steel ball: Denser than both → sinks.
• Glass: Denser than both → sinks.

Answer:

B. Cork