Physics & Space Wonders

Q: What is the name of the phenomenon where a massive star collapses and creates an infinitely dense point in space?

Black hole. A black hole forms when a massive star collapses at the end of its life, creating a region of spacetime where gravity is so strong that nothing, not even light, can escape.

Q: What is the speed of light in vacuum, approximately?

186,000 miles per second. The speed of light is a fundamental constant in physics, denoted as 'c'. It's approximately 299,792 kilometers per second or 186,000 miles per second.

Q: Which scientist developed the theory of general relativity?

Albert Einstein. Albert Einstein published his groundbreaking theory of general relativity in 1915, which describes gravity as a curvature of spacetime caused by mass and energy.

Q: What is the term for the boundary of a black hole beyond which nothing can escape?

Event horizon. The event horizon is the point of no return around a black hole. Once something crosses this boundary, it cannot escape, not even if it travels at the speed of light.

Q: What is the name of the theory that explains how stars produce energy?

Nuclear fusion. Stars produce energy through nuclear fusion, where hydrogen atoms fuse into helium in the star's core, releasing enormous amounts of energy as described by E=mc².

Q: What is the name of the smallest unit of matter that retains the properties of an element?

Atom. An atom is the smallest unit of matter that can exist as part of an element and still retain the chemical properties of that element.

Q: Which physicist won the Nobel Prize for discovering X-rays?

Wilhelm Röntgen. Wilhelm Röntgen won the first Nobel Prize in Physics in 1901 for his discovery of X-rays in 1895, which revolutionized medicine and science.

Q: What is the term for the imaginary line around which Earth rotates?

Axis. Earth's axis is the imaginary line passing through the North and South poles around which Earth rotates, causing day and night cycles.

Q: How many pairs of chromosomes do humans have?

23. Humans have 23 pairs of chromosomes (46 total). 22 pairs are autosomes and 1 pair are sex chromosomes (XX or XY).

Question 1

What is the name of the phenomenon where a massive star collapses and creates an infinitely dense point in space?

Accepted Answer

Black hole

Answer

Neutron star

Answer

White dwarf

Answer

Pulsar

Question 2

What is the speed of light in vacuum, approximately?

Accepted Answer

186,000 miles per second

Answer

286,000 miles per second

Answer

386,000 miles per second

Answer

86,000 miles per second

Question 3

Which scientist developed the theory of general relativity?

Accepted Answer

Albert Einstein

Answer

Isaac Newton

Answer

Galileo Galilei

Answer

Stephen Hawking

Question 4

What is the term for the boundary of a black hole beyond which nothing can escape?

Accepted Answer

Event horizon

Answer

Photon sphere

Answer

Ergosphere

Answer

Singularity

Question 5

What does 'quantum entanglement' refer to in physics?

Accepted Answer

When two particles are connected so that the state of one instantly affects the other

Answer

When electrons orbit in circular patterns

Answer

When energy waves interfere with each other

Answer

When atoms fuse together in nuclear reactions

Question 6

What is the name of the theory that explains how stars produce energy?

Accepted Answer

Nuclear fusion

Answer

Chemical combustion

Answer

Gravitational compression

Answer

Radioactive decay

Question 7

What is the name of the smallest unit of matter that retains the properties of an element?

Accepted Answer

Atom

Answer

Molecule

Answer

Electron

Answer

Quark

Question 8

Which physicist won the Nobel Prize for discovering X-rays?

Accepted Answer

Wilhelm Röntgen

Answer

Marie Curie

Answer

Pierre Curie

Answer

Max Planck

Question 9

What is the term for the imaginary line around which Earth rotates?

Accepted Answer

Axis

Answer

Orbit

Answer

Equator

Answer

Prime meridian

Question 10

How many pairs of chromosomes do humans have?

Accepted Answer

23

Answer

46

Answer

44

Answer

48

Physics & Space Wonders

What is the name of the phenomenon where a massive star collapses and creates an infinitely dense point in space?

Publisher

Physics & Space Wonders