Planets, Gravity and Stars

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other. It keeps planets in orbit around the sun and governs the motion of celestial bodies.

Front

How does gravity affect our solar system?

Back

Gravity holds the planets in orbit around the sun, forms the sun and planets, and influences the movement of moons and asteroids.

Front

What is a light year?

Back

A light year is the distance that light travels in one year, used to measure distances outside our solar system.

Front

What is a nebula?

Back

A nebula is a giant cloud of gas and dust in space, where new stars are formed due to the gravitational pull of the material.

Front

What happens when a small/medium sized star dies?

Back

When a small/medium sized star like our sun dies, it becomes a white dwarf.

Front

What is a black hole?

Back

A black hole is an object with gravity so strong that not even light can escape from it, formed when a supermassive star dies.

Front

What is the role of gravity in star formation?

Back

Gravity pulls gas and dust together in a nebula, leading to the formation of new stars.

Front

What is the difference between a star and a planet?

Back

A star is a massive, luminous sphere of plasma that generates energy through nuclear fusion, while a planet is a celestial body that orbits a star and does not produce its own light.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs when a massive star exhausts its nuclear fuel and collapses, often leading to the formation of a neutron star or black hole.

Front

What is the solar system?

Back

The solar system is a collection of celestial bodies, including the sun, planets, moons, asteroids, and comets, bound together by gravity.