A submerged submarine that remains at a constant depth has ________ buoyancy.
Respuesta
Positive
Negative
Neutral
No
Pregunta 10
Pregunta
A fully loaded cruise ship leaves port weighing 50,000 tons. How much water does it displace?
Respuesta
Exactly 50,000 tons
More than 50,000 tons
Less than 50,000 tons
50,000 gallons
Pregunta 11
Pregunta
Hot air balloons rise when the air inside the balloon is heated. Which statement must be false?
Respuesta
Hot air is less dense than cool air
The volume of the balloon is equal to the volume of air it displaces
As the air in the balloon cools, the density decreases
The air in the balloon weighs more than the air it displaces
Pregunta 12
Pregunta
Ductility is [blank_start]the ability to be pulled into a wire[blank_end]. [blank_start]Thermal Conductivity[blank_end] is the rate at which a substance transfers heat. Solubility is the [blank_start]ability to dissolve in another substance[blank_end]. [blank_start]Malleability[blank_end] is the ability to be rolled/pounded into sheets.