İngilizce basit deneyler (Floating, Sinking) Test 2 Cevapları

A student conducts an experiment with objects of different densities in water. Which of the following objects would most likely float?

A) A metal key
B) A wooden block
C) A glass marble
D) A stone

An object with a density of 0.8 g/cm³ is placed in water (density 1.0 g/cm³). What will happen to the object?

A) It will sink rapidly
B) It will float partially submerged
C) It will sink slowly
D) It will float completely above the water surface

Which factor is MOST important in determining whether an object will float or sink in water?

A) The color of the object
B) The mass of the object
C) The density of the object
D) The shape of the object

A scientist observes that a small steel needle sinks in water while a large steel ship floats. What explains this difference?

A) The ship has a special coating
B) The ship displaces more water relative to its weight
C) The needle is heavier than the ship
D) The ship is made of different material

When an object floats in water, the buoyant force acting on it is equal to:

A) The object's mass
B) The object's volume
C) The weight of the water displaced
D) The object's density

In an experiment, three balls of equal size but different materials are placed in water:
- Ball A: density = 0.5 g/cm³
- Ball B: density = 1.0 g/cm³
- Ball C: density = 1.5 g/cm³
Which ball will be completely submerged but not sink to the bottom?

A) Ball A
B) Ball B
C) Ball C
D) Both A and B

What happens to the buoyant force on a floating object when more weight is added to it?

A) The buoyant force decreases
B) The buoyant force increases
C) The buoyant force remains the same
D) The buoyant force disappears

A submarine can float, sink, or remain at a constant depth in water. How does it control its buoyancy?

A) By changing its engine power
B) By adjusting its sail size
C) By taking in or releasing water from ballast tanks
D) By changing its propeller speed

Which of the following statements about floating and sinking is CORRECT?

A) All heavy objects sink in water
B) All light objects float in water
C) An object will float if it is less dense than the fluid
D) Shape doesn't affect whether an object floats or sinks

In a saltwater experiment, an object that sinks in freshwater begins to float when salt is added to the water. Why does this happen?

A) The object becomes lighter
B) The salt changes the object's density
C) The saltwater has higher density than freshwater
D) The salt makes the water warmer