Across
- 4. we repeat an experiment to make sure the results are .......
- 6. a not moving object
- 9. used by skydivers to land safely on the ground
- 11. the type of force that acts when you push or pull an object
- 13. the type of force that pulls us towards the centre of the Earth
- 14. two forces of the same size acting on an object in opposite directions
- 16. the friction between moving objects and the air
- 17. anything with this property will experience greater air resistance
Down
- 1. it is a force that exists between two surfaces
- 2. the force acting between they body of a fish and water
- 3. two forces of different sizes acting on an object in opposite directions
- 5. the type of force that keeps ship from sinking
- 7. the type of force that supports objects placed on surfaces
- 8. it can transport people and goods from one place to another by sea
- 10. they test and design of vehicles to make sure they will work well with and against forces
- 12. show different forces, the size of the forces
- 15. show the direction and size of a force