Big Bang Theory

Who first suggested the Big Bang Theory?

• Albert Einstein

• Edwin Hubble

• Georges Lemaître

• Stephen Hawking

What did the universe start as, according to Georges Lemaître?

• A vast, empty space

• A collection of fully formed galaxies

• A single, extremely dense point

• A giant cloud of gas and dust

What was the universe made of in its earliest stages, according to the Big Bang theory?

• Stars and galaxies

• Hot, tiny particles mixed with light and energy

• Planets and asteroids

• Black holes and comets

What force causes planets to revolve around a star?

• Magnetism

• Centrifugal Force

• Gravity

• Friction

Which important tool do scientists use to study the universe, named after a famous astronomer?

• James Webb Space Telescope

• International Space Station

• Voyager 1

• Hubble Space Telescope

What force is believed to be pulling the cosmos apart at increasingly faster speeds?

• Gravity

• Dark energy or matter

• Electromagnetic force

• Nuclear force