SCIENCE ASSESSMENT 1.9- Meteors

1. What is a meteor?

• - a) A rock orbiting the Earth
• - b) A streak of light in the sky when a meteoroid enters Earth's atmosphere
• - c) A small moon
• - d) A comet's tail

2.What causes a meteor to glow brightly?

• - a) Sunlight reflection
• - b) Friction with the atmosphere
• - c) Nuclear reactions
• - d) Gravitational pull

3. What is a meteoroid?

• - a) A large asteroid
• - b) A chunk of rock or dust in space
• - c) A piece of a broken comet
• - d) A star fragment

4. At what speed does a meteoroid enter Earth's atmosphere?

• - a) 5.0 km/s
• - b) 7.5 km/s
• - c) 11.2 km/s or faster
• - d) 15.0 km/s

5. What is the term for a meteor brighter than Venus?

• - a) Fireball
• - b) Bolide
• - c) Shooting star
• - d) Comet

6. What happens to a meteoroid when it completely burns up in the atmosphere?

• - a) It becomes a meteorite
• - b) It forms a crater
• - c) It becomes a meteor
• - d) It turns into a star

7. What are the remains of old comets that cause meteor showers?

• - a) Bolides
• - b) Sporadic meteors
• - c) Comet trails
• - d) Meteor showers

8. What is a meteorite?

• - a) A meteor that hits the ground
• - b) A comet fragment
• - c) A type of star
• - d) A meteoroid in space

9. Which of the following is not a type of meteorite?

• - a) Iron
• - b) Stony
• - c) Stony-iron
• - d) Cometary

10. Which type of meteorite is primarily composed of iron and nickel?

• - a) Chondrite
• - b) Iron meteorite
• - c) Carbonaceous chondrite
• - d) Stony meteorite