Space-time MCQs with Answers

Welcome to the Space-time MCQs with Answers. In this post, we have shared Space-time Online Test for different competitive exams. Find practice Space-time Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Space-time.

Space-time Online Quiz

By presenting 3 options to choose from, Space-time Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Space-time Questions and Answers and click over the correct answer.

• Test Name: Space-time MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

0

---

Space-time

Please fill out the form before starting Quiz.

1 / 40

What is a light-year?

The speed of light per year

The time taken for light to travel a certain distance

The distance light travels in one year

2 / 40

What is a black hole?

A large star

A region of space where the gravitational pull is so strong that nothing, not even light, can escape

A dense cloud of gas and dust

3 / 40

What does the term "spaghettification" refer to in astrophysics?

The expansion of the universe

The stretching of objects into long thin shapes in a strong gravitational field

The collapse of a star into a black hole

4 / 40

What is special relativity?

The theory dealing with the gravitational force

The theory dealing with the laws of physics in the absence of gravity

The study of special particles in physics

5 / 40

What phenomenon occurs when an object approaches the speed of light?

It gains infinite mass

Its length contracts and time slows down

It becomes invisible

6 / 40

What is a wormhole?

A small star

A type of black hole

A hypothetical tunnel connecting distant points in space-time

7 / 40

What are tidal forces?

The effect of ocean tides on space-time

Variations in gravitational pull experienced over an object

The influence of solar radiation on space-time

8 / 40

What is a frame of reference?

A coordinate system used to measure positions and movements

A fixed point in space

A type of telescope

9 / 40

What is the main idea of the block universe theory?

Past, present, and future all exist simultaneously

The universe is static and unchanging

Time flows in one direction only

10 / 40

What is the effect of gravity on light according to general relativity?

Light bends in the presence of gravity

Light speeds up in the presence of gravity

Light is absorbed by gravity

11 / 40

What is a Lorentz transformation?

The theory of gravitational waves

The mathematical equations relating the space and time coordinates of two systems moving at constant velocity relative to each other

The process of converting mass to energy

12 / 40

What is the term for an object moving faster than the speed of light?

It is theoretically impossible

Neutrino

Tachyon

13 / 40

What is the fourth dimension in space-time?

Height

Width

Time

14 / 40

Who formulated the special theory of relativity?

Max Planck

Niels Bohr

Albert Einstein

15 / 40

What is time dilation?

The constant flow of time

The slowing down of time in a strong gravitational field or at high speeds

The speeding up of time

16 / 40

What does the theory of general relativity describe?

The chemical composition of stars

The curvature of space-time by mass and energy

The behavior of light

17 / 40

What is the fabric of space-time often compared to?

A water surface

A rubber sheet

A metal plate

18 / 40

What is the shape of space-time around a massive object?

Flat

Zigzag

Curved

19 / 40

What is gravitational time dilation?

Time runs faster in stronger gravitational fields

Time runs slower in stronger gravitational fields

Time remains the same regardless of gravitational fields

20 / 40

What is the concept of spacetime curvature?

The bending of space and time around a mass

The straight path of an object in motion

The distance between two points in space

21 / 40

What happens to time as an object approaches a black hole?

It speeds up

It remains constant

It slows down

22 / 40

What is the term for the effect of massive objects bending light?

Refraction

Gravitational lensing

Reflection

23 / 40

What does the term "spacetime continuum" refer to?

Space independent of time

The combination of the three dimensions of space with the one dimension of time

Time independent of space

24 / 40

What is a gravitational wave?

A type of sound wave

A ripple in space-time caused by accelerating masses

A fluctuation in the magnetic field

25 / 40

What is the equivalence principle?

The idea that all forces are equal

The theory that all particles have an equivalent wave function

The principle stating that gravitational and inertial forces are indistinguishable in a small region of space-time

26 / 40

What is a singularity?

A type of neutron star

A large galaxy cluster

A point where density becomes infinite and space-time curvature becomes infinite

27 / 40

What is a geodesic in space-time?

The shortest path between two points in curved space-time

A type of spacecraft trajectory

A line connecting two galaxies

28 / 40

What is time-like interval in relativity?

An interval where events are simultaneous

An interval where events are spatially separated

An interval where events are causally connected

29 / 40

What is the purpose of the Michelson-Morley experiment?

To measure the speed of light

To demonstrate the absence of the aether and support the theory of relativity

To detect gravitational waves

30 / 40

What is the cosmological constant?

The rate of expansion of the universe

A term introduced by Einstein to allow for a static universe

The speed of light

31 / 40

What is the twin paradox?

A thought experiment in special relativity involving identical twins, one of whom travels at high speed

A theory about quantum entanglement

A situation where twins experience different gravitational forces

32 / 40

Who proposed the concept of space-time?

Albert Einstein

Galileo Galilei

Isaac Newton

33 / 40

What is the main difference between general relativity and special relativity?

General relativity is limited to high speeds, special relativity is not

Special relativity includes gravity, general relativity does not

General relativity includes gravity, special relativity does not

34 / 40

What is the significance of the Schwarzschild radius?

It is the radius of the Earth

It is the radius of the Sun

It is the radius at which the escape velocity equals the speed of light

35 / 40

What is an event horizon?

The surface of a star

The boundary around a black hole beyond which nothing can escape

The edge of the universe

36 / 40

Who formulated the theory of general relativity?

Stephen Hawking

Albert Einstein

Isaac Newton

37 / 40

What is the speed of light in a vacuum?

Approximately 299,792 km/s

Approximately 500,000 km/s

Approximately 100,000 km/s

38 / 40

What is space-time?

A three-dimensional space without time

A four-dimensional continuum combining space and time

Time measured by space intervals

39 / 40

What is the main observational evidence for the expansion of the universe?

The redshift of distant galaxies

The abundance of hydrogen in the universe

The cosmic microwave background radiation

40 / 40

What does E=mc^2 represent?

The equivalence of mass and energy

The speed of light

The force of gravity

0%

Restart quiz

Download Certificate of Quiz Space-time

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

Download Space-time MCQs with Answers Free PDF

You can also download 100 Space-time Questions with Answers free PDF from the link provided below. To Download file in PDF click on the arrow sign at the top right corner.

If you are interested to enhance your knowledge regarding  English, Chemistry, Computer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.