Holograms in Real Life: Comprehension Quiz

What is a hologram?

• A two-dimensional photograph

• A type of computer virus

• A three-dimensional image created by light interference

• A video projected on a wall

Answer explanation

A hologram is a three-dimensional image created by light interference, allowing it to appear as if it has depth and volume, unlike a two-dimensional photograph or a video projected on a wall.

What is necessary to create a realistic hologram?

• Paint and canvas

• A projector and screen

• Light beams and laser technology

• A digital camera

Answer explanation

Creating a realistic hologram requires light beams and laser technology to manipulate light in a way that produces three-dimensional images. Other options like paint or projectors do not achieve this effect.

How is a laser used in creating a hologram?

• To scan barcodes

• To project cartoons

• To record and recreate 3D images through light bursts

• To burn patterns into surfaces

Answer explanation

A laser is used in creating a hologram by recording and recreating 3D images through light bursts. This process captures the light interference patterns, allowing for the three-dimensional representation of objects.

Which two industries are using holograms today?

• Farming and plumbing

• Entertainment and healthcare

• Mining and fishing

• Textiles and carpentry

Answer explanation

Holograms are widely used in the entertainment industry for concerts and movies, and in healthcare for medical imaging and training. Thus, the correct answer is entertainment and healthcare.

How are holograms used in the entertainment industry?

• To animate comic books

• To create light shows for concerts

• To bring back deceased artists for performances

• To play music through speakers

Answer explanation

Holograms are used in the entertainment industry to create lifelike performances of deceased artists, allowing fans to experience concerts featuring their favorite performers in a new and innovative way.

What is “holographic telepresence”?

• Watching TV in 3D

• Communicating through live 3D holograms

• Sending text messages via laser

• Calling someone on a landline

Answer explanation

Holographic telepresence refers to the ability to communicate through live 3D holograms, allowing users to interact with realistic representations of others in real-time, unlike the other options which do not involve holograms.

Why are holograms helpful in education or medicine?

• They make people laugh

• They allow students to avoid school

• They offer immersive, 3D learning and training tools

• They are cheaper than textbooks

Answer explanation

Holograms provide immersive, 3D learning experiences that enhance understanding and retention in education and medicine, making complex concepts more accessible and engaging for students and professionals.

What is a possible ethical concern with using holograms to bring back historical figures?

• They cost too much money

• They take up too much space

• They may be used without the person’s consent

• They don’t speak clearly

Answer explanation

A significant ethical concern with using holograms of historical figures is that they may be created and used without the consent of the individual or their descendants, raising issues of respect and representation.

Which part of hologram technology might be the most complicated?

• Printing the image

• Lighting a candle

• Syncing laser light with 3D imaging

• Taking a selfie

Answer explanation

Syncing laser light with 3D imaging is complex because it requires precise alignment and timing to accurately capture and reproduce the holographic image, making it the most challenging aspect of hologram technology.

Will holograms likely become more common in the next 10 years? Why?

• No, because they’re boring

• Yes, due to advancements in AI and optical tech

• No, because schools have banned them

• Yes, because people like cartoons

Answer explanation

Holograms are expected to become more common due to significant advancements in AI and optical technology, which will enhance their development and accessibility, making them more practical for various applications.