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Background AI question generation and question diagrams. A second AI answers every new question on its own; when it agrees with the stored answer the question goes live, otherwise it waits here for you.

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Every 30 min, 50 questions per batch
Question diagrams
Up to 6 per batch, drawn by gpt-4o-mini, answer-checked by gpt-4o-mini, served from https://questions.teechaa.com/question_images

New questions

7539AI questions in bank

335awaiting review

SS3 / Physicsnext batch (1 of 83 class/subject pairs in your bank)

2026-10-05 12:15:28 UTClast successful batch

AI questions for subjects a class doesn't take: from before generation was limited to the subjects in your question bank. They also make those subjects appear in the app's subject pickers for that class.

JSS1 Physics (30 draft) · JSS1 Chemistry (30 draft)

Going live

6966approved and live

218held for you to decide

0older drafts still to check (60 per run)

0deleted by you

Held questions: the checker didn't reach the stored answer, or found a problem. Green = stored answer, underlined = checker's pick. Approve if the stored answer is right, otherwise delete. Showing the latest 30 of 218.

#44390 · SS3 MathematicsCalculate the surface area of a sphere with a radius of 4 cm. (Use π ≈ 3.14)

A) 150.8 cm²
B) 50.24 cm²
C) 100.48 cm²
D) 200.96 cm²

Stored answer A · checker said C · Checker chose C, stored answer is A.

#44379 · SS3 MathematicsWhat is the equation of the line with slope 2 passing through (1, 1)?

A) y = 2x - 1
B) y = 2x + 1
C) y = x + 2
D) y = 2x

Stored answer A · checker said B · Checker chose B, stored answer is A.

#44376 · SS3 MathematicsEvaluate the limit: lim (x→2) (x² - 4)/(x - 2).

A) 4
B) 2
C) 0
D) Undefined

Stored answer A · checker said B · Checker chose B, stored answer is A.

#44266 · SS3 Further MathematicsIf a projectile is launched at an angle of 30°, what is the horizontal component of the velocity if the speed is 40 m/s?

A) 20 m/s
B) 30 m/s
C) 40 m/s
D) 10 m/s

Stored answer A · checker said B · Checker chose B, stored answer is A.

#44264 · SS3 Further MathematicsAn object is thrown upward with a velocity of 20 m/s. How high will it go before falling back?

A) 20 m
B) 30 m
C) 40 m
D) 50 m

Stored answer C · checker said X · The height depends on the acceleration due to gravity, which is not provided.

#44251 · SS3 Further MathematicsWhat is the volume of a sphere with radius 3?

A) 36π
B) 27π
C) 9π
D) 4π

Stored answer A · checker said B · Checker chose B, stored answer is A.

#44244 · SS3 Further MathematicsWhat is the product of (1 + i)(1 - i)?

A) 0
B) 2
C) 1
D) -1

Stored answer B · checker said C · Checker chose C, stored answer is B.

#44242 · SS3 Further MathematicsWhat is the result of the operation A ⊕ B if A = 3 and B = 5?

A) 8
B) 6
C) 2
D) 1

Stored answer C · checker said A · Checker chose A, stored answer is C.

#44235 · SS3 English LanguageConvert to direct speech: 'He said he would come.'

A) He says, 'I will come.'
B) He said, 'I will come.'
C) He said, 'He will come.'
D) He says, 'He will come.'

Stored answer B · checker said C · Checker chose C, stored answer is B.

#44198 · SS3 EconomicsWhat is the Malthusian theory primarily concerned with?

A) Population control
B) Economic growth
C) Resource depletion
D) Technological advancement

Stored answer C · checker said A · Checker chose A, stored answer is C.

#44197 · SS3 EconomicsWhich theory argues that population growth leads to economic development?

A) Malthusian theory
B) Demographic transition theory
C) Marxist theory
D) Neo-Malthusian theory

Stored answer B · checker said A · Checker chose A, stored answer is B.

#43956 · SS2 MathematicsWhat is the volume of a cone with radius 2 cm and height 6 cm?

A) ⅔π cm³
B) 4π cm³
C) 12π cm³
D) 2π cm³

Stored answer A · checker said B · Checker chose B, stored answer is A.

#43948 · SS2 MathematicsFind the height of a tree if its shadow is 10 m long and the angle of elevation is 30°.

A) 5 m
B) 10 m
C) √3 m
D) 10√3 m

Stored answer A · checker said D · Checker chose D, stored answer is A.

#43941 · SS2 MathematicsIf ₦200 is invested at 5% simple interest for 2 years, what is the total amount?

A) ₦210
B) ₦220
C) ₦200
D) ₦205

Stored answer A · checker said B · Checker chose B, stored answer is A.

#43843 · SS2 Further MathematicsFind the area under y = x from x = 1 to x = 4.

A) 4.5
B) 5
C) 6
D) 7

Stored answer A · checker said C · Checker chose C, stored answer is A.

#43841 · SS2 Further MathematicsSolve the inequality x² - 4 < 0.

A) -2 < x < 2
B) x < -2 or x > 2
C) x > -2 and x < 2
D) x ≤ -2 or x ≥ 2

Stored answer A · checker said C · Checker chose C, stored answer is A.

#43834 · SS2 Further MathematicsWhat is the sum of the first 5 terms of the series 2, 5, 8, ...?

A) 50
B) 45
C) 40
D) 35

Stored answer A · checker said B · Checker chose B, stored answer is A.

#43833 · SS2 Further MathematicsIf a card is drawn from a deck, what is the probability it is a queen?

A) 1/13
B) 1/52
C) 1/26
D) 1/4

Stored answer A · checker said B · Checker chose B, stored answer is A.

#43819 · SS2 Further MathematicsWhat is the 5th term of the arithmetic sequence 3, 7, 11, ...?

A) 15
B) 16
C) 14
D) 12

Stored answer A · checker said C · Checker chose C, stored answer is A.

#43816 · SS2 Further MathematicsCalculate the area under the curve y = x² from x = 0 to x = 3.

A) 9
B) 6
C) 4.5
D) 3

Stored answer A · checker said B · Checker chose B, stored answer is A.

#43795 · SS2 English LanguageWhat is the purpose of a counterargument in an argumentative essay?

A) To strengthen your argument
B) To confuse the reader
C) To show different opinions
D) To conclude the essay

Stored answer A · checker said C · Checker chose C, stored answer is A.

#43775 · SS2 EconomicsHow do commercial banks create money?

A) By issuing bonds
B) Through customer deposits
C) By lending to businesses
D) By selling stocks

Stored answer C · checker said B · Checker chose B, stored answer is C.

#43643 · SS2 ChemistryWhat is the general formula for alkanes?

A) CₙH₂ₙ₊₁
B) CₙH₂ₙ
C) CₙH₂ₙ₋₂
D) CₙH₂ₙ₊₂

Stored answer D · checker said A · Checker chose A, stored answer is D.

#43515 · SS1 PhysicsIf a runner completes a 400 m lap in 50 seconds, what is their average velocity?

A) 8 m/s
B) 10 m/s
C) 12 m/s
D) 20 m/s

Stored answer B · checker said A · Checker chose A, stored answer is B.

#43514 · SS1 PhysicsWhat is the average speed if a car travels 150 km in 3 hours?

A) 50 km/h
B) 60 km/h
C) 70 km/h
D) 80 km/h

Stored answer B · checker said A · Checker chose A, stored answer is B.

#43503 · SS1 PhysicsWhat is the coefficient of friction if a force of 30 N is needed to move a 200 N object?

A) 0.15
B) 0.20
C) 0.25
D) 0.30

Stored answer B · checker said C · Checker chose C, stored answer is B.

#43490 · SS1 MathematicsIf z varies jointly with x and y, and z = 24 when x = 2 and y = 3, what is z when x = 4 and y = 6?

A) 48
B) 36
C) 60
D) 72

Stored answer A · checker said D · Checker chose D, stored answer is A.

#43479 · SS1 MathematicsWhat is the bearing of point B from point A if B is directly east of A?

A) 90°
B) 180°
C) 0°
D) 270°

Stored answer A · checker said C · Checker chose C, stored answer is A.

#43478 · SS1 MathematicsIf a car travels 120.5 km in 1.75 hours, estimate the speed in km/h. What is the approximate speed?

A) 69 km/h
B) 72 km/h
C) 70 km/h
D) 75 km/h

Stored answer A · checker said B · Checker chose B, stored answer is A.

#43475 · SS1 MathematicsIf x = 3, what is the value of (2x² + 3x)/(x - 2)?

A) 21
B) 15
C) 18
D) 12

Stored answer A · checker said B · Checker chose B, stored answer is A.

Diagrams on new questions

**#40189 · JSS3 Mathematics**How do you construct a locus of points equidistant from a point?

**#37785 · SS1 Computer Science**What does a diamond shape represent in a flowchart?

Diagrams for old questions

0diagrams added

0still to look at

56no diagram needed / can't be drawn

1failed (retried up to 3×)

Recent runs

Started	Trigger	Status	Class / subject	Qs	Details
2026-10-05 12:36:34 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-05 12:14:34 UTC	timer	success	SS3 / Mathematics	35	32 approved and live, 3 held for review. 4 duplicate(s) of existing questions skipped.
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2026-10-05 11:44:34 UTC	timer	success	SS3 / Marketing	34	34 approved and live, 0 held for review. 2 duplicate(s) of existing questions skipped.
2026-10-05 11:43:34 UTC	backfill	skipped			No old questions left that need a diagram.
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2026-10-05 11:14:34 UTC	timer	success	SS3 / Government	24	24 approved and live, 0 held for review. 6 duplicate(s) of existing questions skipped.
2026-10-05 11:13:34 UTC	backfill	skipped			No old questions left that need a diagram.
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