Unit 5: Lessons 1+2: What's out There?-10A

What is the term for a person trained to travel and work in space?

• • scientist

• • engineer

• • astronaut

• • pilot

What is a massive system of stars, gas, dust, and dark matter bound by gravity?

• • galaxy

• • solar system

• • planet

• • black hole

What do we call an object that orbits a larger celestial body?

• • rocket

• • satellite

• • telescope

• • planet

What is the force that attracts objects with mass toward each other?

• • inertia

• • friction

• • magnetism

• • gravity

What term refers to the sun and all objects orbiting it?

• • galaxy

• • solar system

• • universe

• • planet

What is a spherical celestial body orbiting a star called?

• • planet

• • asteroid

• • star

• • satellite

What is the third planet from the sun, known for supporting life?

• • Mars

• • Earth

• • Jupiter

• • Venus

What is the study of outer space using spacecraft and telescopes?

• • satellite navigation

• • astrophysics

• • astronomy

• • space exploration