Question 1:

The correct formula for pressure is:

That matches option A.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 2:

We are given:

Force=8 kN=8000 N

Area=0.2 m²

Pressure formula:

So the correct answer is C) 40 000 Pa.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 3:

Let’s go step-by-step.

We have from the question:

• Weight F=6 N (force on desk)

• The block’s dimensions are: height 0.2 m, width 0.2 m, depth 0.1 m.

• The block rests on the desk. The pressure on the desk depends on the area in contact with the desk — usually the base area (not height).

The base area is:

Pressure = Force / Area:

That matches option A.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 4:

We are given:

Pressure=20 N/cm²

Force on one side=200 N

We use the formula:

Substitute:

So the area of one side is 10 cm² → option A.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 5:

The pressure inside a liquid (or gas) acts equally in all directions (Pascal’s principle), not just up, down, or sideways.

So for a fizzy drink in a bottle, the pressure acts in all directions (on the bottom, sides, top, and any surface in contact with the fluid).

Correct answer: D) In all directions.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 6:

The nail has a small surface area at its point (the end touching the wood).

Pressure is given by P=F/A.
For the same force, if area is small, then pressure is large.

Thus:

• Surface area = small

• Pressure = large

That matches option B.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 7:

The pressure in a liquid is given by P=ρgh, where:

• ρ = density of the liquid (higher density gives higher pressure)

• h = depth below the surface (greater depth gives higher pressure)

So pressure is higher in a dense liquid at large depths.

Correct answer: A.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 8+9:

Let’s go step-by-step.

The pressure due to the liquid (gauge pressure, not including atmospheric pressure) is:

Where:

For row 8:
P=500,000 Pa

500,000=1000×10×h

h=500,000/10000 ≈50 m

For row 9:
h=250 cm =2.5 m

Using g=10: P=1000×10×2.5=25,000 Pa.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 10:

Atmospheric pressure is caused by the weight of the air column above a given point.

As you climb a high mountain, the height of the air column above you decreases, so the atmospheric pressure decreases.

That matches option B:

The pressure decreases as the height of the column of air above us decreases.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.