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- 1. Multiple ChoiceIf the weight of the water displaced is the same as the weight of the object placed in the water, the object will sink.TrueFalse
- 2. Multiple Choice
A ship is able to float in the water because its weight was the same as the weight of the water it displaced.
True
False
- 3. Multiple ChoiceWhat was the principle Archimedes discovered?Principle of VolumePrinciple of DensityPrinciple of BuoyancyPrinciple of Gravity
- 4. Multiple ChoiceWhat is buoyant force?An upward force exerted by fluids on an object.An downward force exerted by fluids on an object.
- 5. Multiple Choice
What does buoyant mean?
Can float
Can push
Is less dense
Easily sinkable
- 6. Multiple Choice
A water bottle filled with stones and sinking in the water is an example of.......
Upthrust being less than weight
Upthrust being equal to weight
- 7. Multiple Choice
this forces keeps an ice cube floating on top of a glass of water
buoyancy force
density
Upthrust
compressed air
- 8. Multiple ChoiceWhat is the formula for density?density = mass x volumedensity = mass / volumedensity = mass + volumedensity = mass - volume
- 9. Multiple Choice
This is a measurement of the amount of matter, or 'stuff', in an object or substance.
volume
density
mass
length
- 10. Multiple ChoiceWhich liquid is the least dense?oilwatersyrupplastic bottle
- 11. Multiple ChoiceWhat happens when you heat a gas?It gains mass.It loses mass.It increases in volume.It decreases in volume.
- 12. Multiple ChoiceThe density of water is 1g/cm3. A substance will float if its density is less than that of water. Which of the following substance will float?substance 1substance 2substance 3substance 4
- 13. Multiple Choice
What is volume
the amount of space an object occupies
the amount of matter an object has
The cumulative area swept out by object
- 14. Multiple ChoiceWhich box has a higher density?Box ABox Bcannot be determinedthey are the same
- 15. Multiple ChoiceIf two objects are made of the same substance and have the same mass, the shape of the object determines whether or not it sinks or floats in a fluid.TrueFalse
- 16. Multiple Choice
Hot air balloons float because less dense hot air displaces more dense cooler air in the atmosphere.
true
false
- 17. Multiple Choice
If the mass of an object is 6kg on earth its mass be on the moon would be?
6kg
6N
9.4N
1.6kg
- 18. Multiple ChoiceBuoyancy is the tendency for objects to float in a fluid. We consider buoyancy the...Un-gravity forceAnti-gravity forceGravitational pullDownwards pull on an object
- 19. Multiple Choice
Archimedes' Principle states that...
The buoyancy force acting on an object equals the volume of the fluid displaced by the object.
The buoyancy force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.
The buoyancy force acting on an object will always be equal.
- 20. Multiple ChoiceHow could you make plastic sink and steel float?You can'tChange the shape and therefore surface areaRemove some mass
- 21. Multiple Choice
True or false... "mass" is essentially the same thing as "weight"?
True
False
- 22. Multiple Choicewhich of the following statements is true?oil floats on water because oil is less dense than wateroil does not float on water because water is more densewater floats on oil because water is less dense
- 23. Multiple ChoiceHot air is less dense than cold airtruefalse
- 24. Multiple Choicehas a weight of 10 N and a buoyant force of 10 Ndensitya sinking objecta floating objecta buoyed-up object
- 25. Multiple Choicecan be decreased by making the shape hollowmassdensityvolumeweight
- 26. Multiple Choiceis pumped into a submarine’s ballast tank to decrease densityoilcompressed airnitrogenwater
- 27. Multiple ChoiceIf an object sinks in a fluid, _____.the density of the fluid is greater than the density of the objectthe density of the fluid is less than the density of the objectthe density of the fluid is equal to the density of the objectdensity has nothing to do with whether an object sinks or floats, only which state of matter the object is
- 28. Multiple ChoiceAn object will will be partially submerged in a fluid if ____.the weight of an object is greater than the buoyant forcethe weight of an object is less than the buoyant forcethe weight of an object is equal to the buoyant forcethe weight doesn't affect if an object sinks, only its state of matter
- 29. Multiple ChoiceAn object will NOT sink if its weight is ______ ______ _____ ______ ______ the buoyant force.Less than or equal toGreater than or equal toSimilar to and almost equalDifferent from and almost equal
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