İngilizce basit deneyler (Floating, Sinking) Test 1 Cevapları

Which property of an object primarily determines whether it will float or sink in water?

A) Its color
B) Its mass
C) Its density
D) Its volume

A student places a steel nail and a wooden block of the same mass into a container of water. The nail sinks while the block floats. What is the main reason for this observation?

A) The nail is heavier than the block
B) The block has a lower density than water
C) The nail has a smoother surface
D) Water temperature affects the nail more

An object with a density of \( 0.8 \, \text{g/cm}^3 \) is placed in water (\( \rho = 1.0 \, \text{g/cm}^3 \)). What will happen to the object?

A) It will sink to the bottom
B) It will float partially submerged
C) It will dissolve in water
D) It will remain suspended in the middle

Which of the following materials would most likely float in freshwater?

A) A gold ring (\( \rho = 19.3 \, \text{g/cm}^3 \))
B) A glass marble (\( \rho = 2.5 \, \text{g/cm}^3 \))
C) A plastic bottle (\( \rho = 0.9 \, \text{g/cm}^3 \))
D) An iron bolt (\( \rho = 7.9 \, \text{g/cm}^3 \))

Two objects have the same volume but different masses. When placed in water, Object A sinks while Object B floats. What can be concluded about their densities?

A) Object A has lower density than Object B
B) Object B has higher density than water
C) Object A has higher density than water
D) Both objects have the same density

A submarine can control whether it floats or sinks by adjusting its overall density. How does it achieve this?

A) Changing the material of its hull
B) Heating or cooling the water inside
C) Taking in or releasing water from ballast tanks
D) Increasing or decreasing its speed

Saltwater is denser than freshwater. How would an object that floats in saltwater behave in freshwater?

A) It would float at the same level
B) It would sink
C) It would float higher in the water
D) It would dissolve

An ice cube floats in a glass of water. What percentage of the ice cube is typically above the water surface?

A) 0% (completely submerged)
B) About 10%
C) About 50%
D) About 90%

During a science experiment, a student observes that a small steel needle can be made to float on water if placed carefully, even though steel is denser than water. What phenomenon explains this observation?

A) Surface tension
B) Magnetic attraction
C) Water pressure
D) Thermal expansion

A ship made of steel can float in water despite steel being denser than water because:

A) The ship's shape allows it to displace enough water to create buoyant force
B) Steel becomes less dense when formed into a ship
C) The paint on the ship makes it float
D) The air inside the ship makes it lighter than water