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Quizzes > Entertainment & Pop Culture > Video Games

Ultimate Portal Quiz: Think You Can Ace It?

Dive into our portal trivia quiz and prove you're the Aperture Science master!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art quiz illustration on Aperture Science from Portal game on a coral background.

This Portal quiz helps you see how well you remember Aperture test chambers, GLaDOS quips, and core mechanics. Play for fun, pick up a fact or two, and spot any gaps before your next run. Want more? Brush up with video game facts or try another game quiz.

What is the full name of the testing facility where Portal takes place?
Aperture Laboratories
Black Mesa Research Facility
Vault-Tec Test Labs
Aperture Science Enrichment Center
Portal is set in the Aperture Science Enrichment Center, a high-tech research complex dedicated to testing. The name is mentioned repeatedly in loading screens and dialogue. This facility is where all test chambers and GLaDOS's core are housed.
Who is the silent protagonist you control throughout Portal?
Alyx Vance
Gordon Freeman
Wheatley
Chell
Players control Chell, a test subject navigating the Aperture Science Enrichment Center under GLaDOS's supervision. Her identity is deliberately kept mysterious, with no spoken lines. The game's marketing and manual confirm her name and role.
What nickname do fans give the cube that you sometimes carry during test chambers?
Weighted Companion Cube
Storage Cube
Cube of Friendship
Personality Cube
The cube that appears with a pink heart is known officially as the Weighted Companion Cube. It's a special test equipment item used in select chambers. Its design and endearing imagery made it a fan favorite.
What is the name of the artificial intelligence overseeing the tests?
Cortana
GLaDOS
SHODAN
E.D.I.
GLaDOS (Genetic Lifeform and Disk Operating System) is the AI antagonist in Portal. She runs the testing facility, guides - and often deceives - the player through the chambers. Her unique personality and dark humor became a hallmark of the series.
What is the common name for the device Chell uses to create portals?
Aperture Switch
Dimensional Splicer
Gravity Gun
Portal Gun
The Portal Gun, officially called the Aperture Science Handheld Portal Device, allows Chell to create linked entry and exit portals. This device is the core gameplay mechanic of the Portal series. Its design and function are explained in early tutorial chambers.
What are the two colors of the portals created by the Portal Gun?
Orange and Purple
Red and Blue
Green and Yellow
Blue and Orange
Portals appear in a bright blue and a contrasting orange color. These distinct colors help players track entry and exit points during puzzle-solving. The color choice also avoids confusion in fast-paced gameplay.
What does the acronym GLaDOS stand for?
General Laboratory Design Operating Server
Genetic Linkage and Distribution OS
Genetic Lifeform and Disk Operating System
Global Laboratory Data Operating System
GLaDOS stands for Genetic Lifeform and Disk Operating System, reflecting that she is both an AI and a biological hybrid. Her name and backstory are revealed gradually through dialogue and hidden logs. This unique origin fuels much of the game's narrative tension.
Portal is included in which Valve game compilation?
Valve Complete Pack
Half-Life Compilation
The Aperture Collection
The Orange Box
Portal was bundled with Team Fortress 2 and Half-Life 2 along with its two sequels in 'The Orange Box' released in 2007. This compilation introduced many players to Portal's innovative gameplay. It is often credited with the game's early popularity.
What is the unofficial motto Chell remembers hearing from GLaDOS throughout the tests?
No hazards too great
Testing is believing
Science before Safety
We do what we must because we can
The line 'We do what we must because we can' appears on test chamber posters and is voiced by GLaDOS as a motivational mantra. It underscores Aperture Science's reckless pursuit of discovery. Fans quote it as emblematic of the game's dark humor.
How many test chambers are there in the original Portal game?
25
19
22
15
Portal features 19 numbered test chambers, each introducing new puzzles or mechanics. The count excludes tutorial rooms and the final escape sequence. These chambers define the game's pacing and difficulty curve.
According to its in-game specification, what is the approximate mass of the Weighted Companion Cube?
66.6 kg
25 kg
12.3 kg
101 kg
The Weighted Companion Cube's fictional specification lists its mass humorously as 66.6 kg, playing on the number 666. This detail is found in hidden logs and a test chamber briefing. It adds to the cube's cult status.
Who provides the voice for GLaDOS?
Tara Strong
Ellen McLain
Laura Bailey
Jennifer Hale
Ellen McLain, also known for voicing the Administrator in Team Fortress 2, gives GLaDOS her iconic tones. McLain's performance balances charm and menace perfectly. Valve has credited her voice work as a key to GLaDOS's popularity.
What are the names of the two cooperative robot characters in Portal 2?
Alpha and Beta
Atlas and P-Body
Bolt and Nut
X and Y
In Portal 2's cooperative mode, players control two testing robots named Atlas and P-Body. Each has a handheld portal device, and coordination is essential. Their personalities are conveyed through distinct metal voices.
Who composed the end?credits song "Still Alive" featured in Portal?
Kelly Bailey
Jonathan Coulton
Mike Morasky
Alex Vance
"Still Alive" was written and performed by singer?songwriter Jonathan Coulton specifically for Portal's credits. GLaDOS's voice actor Ellen McLain sings the track in character. The song became an instant fan favorite.
Which holiday is referenced as the day GLaDOS was first activated?
National Science Day
Bring Your Daughter to Work Day
Take Your Pet to Work Day
Computer Privacy Day
In hidden logs, GLaDOS mentions that she went online on "Bring Your Daughter to Work Day," a tongue-in-cheek holiday. This dates her activation to a corporate open-house event. The reference highlights Valve's humor in world-building.
Who provides the voice for Wheatley in Portal 2?
Richard Ayoade
John Cleese
Simon Pegg
Stephen Merchant
British comedian Stephen Merchant voices Wheatley, the bumbling personality core. His distinctive delivery captures Wheatley's nervous enthusiasm and comedic timing. Merchant recorded his lines remotely from the UK.
What is Chell's official test subject number?
17
19
23
21
Hidden files and developer commentary identify Chell as Test Subject 19. This designation appears in Aperture Science logs. The detail was never VO-recorded but is canonical.
In what year was Aperture Science founded according to Portal's lore?
1947
1932
1955
1961
Aperture Science was established in 1947 by Cave Johnson, as noted in in-game recordings. The lore ties its origins to mid-20th-century science entrepreneurship. Fans glean this date from audio logs found in Portal 2.
In which test chamber is the Weighted Companion Cube incinerated?
Chamber 16
Chamber 18
Chamber 15
Chamber 17
Test Chamber 17 is where GLaDOS forces the player to incinerate the Weighted Companion Cube. This moment is one of the most memorable in Portal. It highlights the game's dark humor and narrative subversion.
Which physical principle is humorously referenced by the phrase "speedy thing goes in, speedy thing comes out"?
Conservation of Energy
Conservation of Momentum
Entropy Increase
Quantum Tunneling
The quote refers to conservation of momentum: the speed gained entering a portal is maintained upon exit. This fundamental physics law underpins many Portal puzzles. Valve used it to build creative momentum?based challenges.
Which type of gel in Portal 2 grants the player increased running speed?
Conversion Gel
Repulsion Gel
Adhesion Gel
Propulsion Gel
Propulsion Gel, the orange coating, makes surfaces slippery and lets Chell sprint at high speeds. It was introduced in Portal 2's test chambers. The gel opened up new puzzle mechanics involving fast traversal.
Which type of gel in Portal 2 makes Chell bounce higher when she drops onto it?
Reflection Gel
Conversion Gel
Propulsion Gel
Repulsion Gel
Repulsion Gel, the blue coating, gives Chell a super-bounce when she lands on it. This mechanic is used in several Portal 2 puzzles to reach higher platforms. Its distinct color and sound make it instantly recognizable.
Which of the following ingredients does NOT appear in the secret cake recipe hidden in Portal 2's files?
Cocoa powder
Eggs
Apples
Flour
Fans discovered a hidden cake recipe in Portal 2's code listing ingredients like flour, sugar, eggs, and cocoa powder. 'Apples' do not appear in this list. The recipe is an Easter egg nod to the series' joke that "the cake is a lie."
Which of these was NOT one of the personality cores attached to Wheatley during the final sequence of Portal 2?
Adventure Core
Anger Core
Curiosity Core
Laughter Core
At the end of Portal 2, Wheatley forcibly attaches four corrupted cores to GLaDOS: Adventure, Curiosity, Intelligence and Anger. A 'Laughter Core' does not exist in the game's lore. This twist shows Wheatley's hubris and sets up the final battle.
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Study Outcomes

  1. Recall fundamental Portal mechanics and lore -

    Bring to mind key gameplay elements, story highlights, and in-game terminology tested throughout the portal quiz.

  2. Identify hidden cake theories and Aperture Science secrets -

    Spot the subtle references and conspiracy theories woven into the portal trivia quiz to deepen your fan insight.

  3. Analyze GLaDOS's witty taunts for puzzle clues -

    Examine the AI's sarcastic comments to uncover hints and contextual nuances that can aid your quiz performance.

  4. Apply logical reasoning to challenging puzzle scenarios -

    Use deductive thinking and pattern recognition to navigate abstract questions and solve quiz portal challenges.

  5. Evaluate your Portal fandom level with benchmark scoring -

    Compare your results against typical fan benchmarks to understand your mastery and discover areas for improvement.

Cheat Sheet

  1. Momentum Conservation Mechanics -

    Portal's "flinging" obeys the physics principle of conservation of momentum (m1v1 = m2v2), as demonstrated in MIT's OpenCourseWare simulations on elastic collisions. Remember the mnemonic "fast in, fast out" to recall that entering a portal at speed v exits with identical v, a key concept in many portal quiz puzzles.

  2. Optimal Portal Placement -

    Research from Stanford's Virtual Reality Lab shows that perpendicular portal placement on angular surfaces yields the highest traversal efficiency, mirroring vector optimization techniques in 3D navigation. When tackling a portal game quiz, visualize vectors as arrows to solve spatial puzzles faster and more accurately.

  3. GLaDOS' Witty AI Dialogue -

    Carnegie Mellon University's Game Programming curriculum highlights GLaDOS' timing and tone as exemplary of engaging AI characters, crucial for narrative memory. To ace a portal trivia quiz, memorize her hallmark line "The cake is a lie," which doubles as a clever mnemonic for unexpected plot twists.

  4. Hidden Test Chambers & Easter Eggs -

    Valve's own developer commentary identifies secret rooms like "Chamber 17A," rewarding high-observation players, and is often referenced in free portal test questions. Use the tip "scan left, scan right" to quickly spot misaligned textures or ceiling vents signaling hidden chambers.

  5. The Cake & "Lie" Theory -

    Valve's official Portal 2 digital manual confirms the cake's myth status, framing it as a deceptive incentive in the narrative arc. When preparing for a quiz portal challenge, recall the phrase "No cake, no peace" to navigate tricky cake-theory questions with confidence.

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