Buoyancy - Questions
The Buoyancy Concept Builder is comprised of 33 questions. The questions are divided into 9 different question groups. Questions in the same group are rather similar to one another. The Concept Builder is coded to select at random a question from each group until a student is successful with that group of questions.
The questions and question groups are organized into three different activities. The activities are differentiated as follows:
- Paragraph Completion Question Group 1: Students are provided a paragraph with eight missing words or phrases. They must select the appropriate words and phrases for each blank in order to complete the paragraph.
- Buoyant Force Question Groups 2-5: Students are shown two diagrams. One diagram shows rock hanging from a spring scale above a container of water filled to the rim. The second diagram shows the rock (still on a spring scale) fully submerged in the water and an overflow pan that is on a balance. Students must relate the actual weight, the apparent weight, the amount of diplace water (in L, kg, and N), the buoyant force, and the volume of the rock.
- Which One Doesn't Belong? Question Groups 6-9: Students are presented four statements. Three of them are consistent with one another and the fourth statement is not. They must identify the statement that doesn't belong.
The questions from each group are shown below. Teachers are encouraged to view the questions in order to judge which activity is most appropriate for their classes. We recommend doing all three activities.
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Buoyancy
Activity 1: Paragraph Completion
Question Group 1
Question 1
Fluid pressure ___________ as the depth below the surface increases. For an object submerged in water, the water pushes with ____________ force on its bottom than its top side. This causes a _______________ force that can be calculated as the ____________ the force on its top and bottom side. When objects are submerged in water, the water is moved aside. According to _________________ Principle, the net upward force on the submerged object is equal to the ___________________________. A 2.0-L rock (ρ = 5.0 kg/L) completely submerged in water will _______________ 2.0 L of water. The resulting upward force on the rock is equal to ______________________________.
Answer Options for Blanks:
Blank 1: Increases, decreases, is unchanged
Blank 2: the same, more, less
Blank 3: gravitational, drag, equilibrium, buoyant
Blank 4: average of, sum of, difference between
Blank 5: Bernoulli's, Aristotle's, Archimede's, Pascal's
Blank 6: weight of the object, volume of the object, weight of the displaced water, density of the object
Blank 7: densify, displace, destroy, compress
Blank 8: (2.0 L)*(5.0 kg/L)*(9.8 N/kg), the rock's weight, (2.0 L)*(1.0 kg/L)*(9.8 N/kg), nonsense! Nobody can know this.
Activity 2: The Buoyant Force
Question Group 2
Question 2
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The rock weighs _______________________ N.
The buoyant force is _______________________ N.
The volume of displaced H
2O is ~_______________________ L.
Question 3
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The rock weighs _______________________ N.
The buoyant force is _______________________ N.
The volume of displaced H
2O is ~_______________________ L.
Question 4
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The rock weighs _______________________ N.
The buoyant force is _______________________ N.
The volume of displaced H
2O is ~_______________________ L.
Question 5
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The rock weighs _______________________ N.
The buoyant force is _______________________ N.
The volume of displaced H
2O is ~_______________________ L.
Question Group 3
Question 6
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The mass of the rock is _______________________ kg.
The buoyant force is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question 7
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The mass of the rock is _______________________ kg.
The buoyant force is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question 8
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The mass of the rock is _______________________ kg.
The buoyant force is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question 9
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The mass of the rock is _______________________ kg.
The buoyant force is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question Group 4
Question 10
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The volume of the rock is _______________________ L.
The rock's apparent weight in H
2O is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question 11
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The volume of the rock is _______________________ L.
The rock's
apparent weight in H
2O is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question 12
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The volume of the rock is _______________________ L.
The rock's apparent weight in H
2O is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question 13
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The volume of the rock is _______________________ L.
The rock's apparent weight in H
2O is _______________________ N.
The weight of displaced H
2O is ~_______________________ N.
Question Group 5
Question 14
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The weight of the rock is _______________________ N.
The rock's apparent weight in H
2O is _______________________ N.
The buoyant force is _______________________ N.
Question 15
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The weight of the rock is _______________________ N.
The rock's apparent weight in H
2O is _______________________ N.
The buoyant force is _______________________ N.
Question 16
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The weight of the rock is _______________________ N.
The rock's apparent weight in H
2O is _______________________ N.
The buoyant force is _______________________ N.
Question 17
Diagram A: A rock is attached to a spring scale and suspended above a container filled to the rim with water.
Diagram B: The rock is fully submerged in the water. The displaced water is collected and weighed.
Complete the sentences. (ρ
water = 1 kg/L; g = ~10 N/kg)
The weight of the rock is _______________________ N.
The rock's apparent weight in H
2O is _______________________ N.
The buoyant force is _______________________ N.
Activity 3: Which One Doesn't Belong?
Question Group 6
Question 18
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 19
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 20
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. ( r
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 21
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question Group 7
Question 22
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 23
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 24
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 25
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question Group 8
Question 26
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 27
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 28
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 29
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question Group 9
Question 30
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 31
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 32
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?
Question 33
An object is fully submerged in water. It displaces a given
volume of water, resulting in an upward
buoyant force and giving it an
apparent weight that is different than its
actual weight. (ρ
water = 1.0 kg/L, g = ~10 N/kg)
Four statements are given to describe the situation. One of them is not consistent with the others. Which one doesn't belong?