Question

PLZ HELP 20 pt
Question 1
The block in the illustration is floating in water, which ahs a density of 1.0 g/cm^3. About 40% of the block is below water. What is the estimated density of the block?

Question 1 options:

0.60 g/cm^3


0.90 g/cm^3


0.40 g/cm^3


1.0 g/cm^3

Question 2
What is the upward force that makes things float?

Question 2 options:

resistance


density


buoyancy


gravity

Question 3
According to Pascal's principle, pressure through a fluid is

Question 3 options:

random


unmoving


rigid


uniform

Question 4
How does a wing achieve lift?

Question 4 options:

by moving air at the same rate on the top and the bottom of the wing


by forcing air to move slower over the top of the wing


by forcing air to move faster over the top of the wing

Question 5
Pressure is measured as

Question 5 options:

force per unit area


force per gram


force per inch


force divided by mass

Question 6 (1 point) Question 6 Unsaved
If the amount of a gas in a sealed container increases, what happens to the pressure in the container?

Question 6 options:

the pressure decreases


the pressure increases


the pressure stays the same

Answer 1

Question 1:  The block in the illustration is floating in water, which has a density of 1.0 g/cm^3. About 40% of the block is below water. Even though we can't see the illustration, we estimate the density of the block to be about  0.40 g/cm ³ .

Question 2: The upward force that makes things float is called buoyancy.

Question 3: According to Pascal's principle, pressure through a fluid is  uniform.

Question 4: A wing achieves lift by forcing air to move faster over the top of the wing.

Question 5: Pressure is measured as  force per unit area.

Question 6: If the amount of a gas in a sealed container increases, the pressure in the container also increases.