Across
- 1. The quantity of matter in an object.
- 5. In circular motion an object changes velocity because the ............ changes.
- 7. The fastest constant speed an object can reach when it is falling towards Earth.
- 12. An object is travelling at 20 m/s. The forward force acting on it is 10 N and the backwards force acting on it is 10 N. What will happen to the speed of the object?
Down
- 2. A quantity which has only size.
- 3. A measure of the pull of gravity on an object.
- 4. The resultant force that causes circular motion.
- 6. If the forces are ........... an object will start to accelerate.
- 7. The value of gravitational field strength on Earth.
- 8. The sum of all the forces acting on an object.
- 9. As an object falls the drag acting on it ................ .
- 10. If the forces are ............ an object will not change velocity.
- 11. A quantity which has both size and direction.