Buoyancy and Archimedes' Principle

Archimedes' Principle states that... 

• The buoyant force acting on an object equals the volume of the fluid displaced by the object. 

• The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.

• The buoyant force acting on an object will always be equal. 

The ship was able to float in the water because its weight was the same as the weight of the water it displaced.

• True

• False

If the weight of an object is more than the upward force of buoyancy, the object will

• rise

• sink

• hover

• float

True or false: The weight of the fluid the object displaces is equal to the weight of the object.

• True

• False

The 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 1

• substance 2

• substance 3

• substance 4

Tags

NGSS.MS-PS1-2

A rock dropped into a glass of water raises the water level by 40 milliliters. What can you infer about the rock?

• It has a mass of 40 grams

• It has a desity of 40 grams per milliliter

• It has a volume of 40 milliliters

• It has a weight of 40 pounds

A submerged submarine that remains at a constant depth has _____ buoyancy.

• Positive

• Negative

• Neutral

• No

A fully loaded cruise ship leaves port weighing 50,000 tons. How much water does it displace?

• Exactly 50,000 tons

• More than 50,000 tons

• Less than 50,000 tons

• 50,000 gallons

When Archimedes discovered the principle of displacement, he shouted:

• Halleluiah!

• Eureka!

• Shazham!

The two opposing forces in the principle of buoyancy are

• Gravity and buoyancy

• gravity and pressure

• buoyant force acts alone

• buoyancy and pressure