Across
- 2. another name for air resistance
- 3. energy that an object has while it's moving
- 9. air ...... is a force that slows down movement
- 11. this is produced when an object is moving fast
- 13. the force of water that pushes an object upwards
- 14. wood is ........... than plastic
- 16. water vessels that are not made of solid metal
- 17. by changing this you can reduce air resistance
- 19. space travellers
- 20. a satellite with less gravity than earth
Down
- 1. a man made material used in flotation devices
- 4. these are good floaters
- 5. a planet that is half the size of earth
- 6. slow down objects that are falling to earth
- 7. the invisible earth force that pulls downwards
- 8. goes with a bowling ball in an air experiment
- 10. a bike helmet's shape can ..... air resistance
- 12. the antonym of pulling
- 15. a water vessel that can float and dive
- 18. the force when objects move past each other