Across
- 2. Force that opposes motion between surfaces
- 6. Increasing this increases air resistance (7,4)
- 9. Force you apply when pushing or pulling an object
- 12. A push or pull that may cause acceleration
- 13. A force that acts without physical touching
- 15. Opposes motion along surfaces
- 17. Resistance from air or fluid on a moving object
- 18. Property of a planet that determines weight (13,5)
- 19. Falling with only gravity acting
Down
- 1. Law that total mass stays the same in reactions
- 3. Motion in a circle at constant speed
- 4. Force that pulls objects toward the centre of a planet
- 5. Force that acts against a falling object through air (3,10)
- 7. Objects fall faster and faster due to this
- 8. Pull of a planet on an object measured in Newtons
- 10. Amount of matter in an object
- 11. Force that acts along a string
- 14. A force that requires objects to touch
- 16. Force that points toward the centre of a circle