Across
- 2. the ability to cause change
- 4. anything that takes up space
- 7. a measurement of the quantity of matter
- 8. a device that changes the force or increases the motion from work
- 10. a standard by which test results are compared
- 11. the pattern of investigating a problem
- 13. the rate of change of velocity
- 14. the application of knowledge to benefit people
- 15. a scientist allows his opinion to skew an experiment
- 16. a region of space that has a physical quantity at every point
- 19. a statement about nature that always seems to be true
- 21. the distance an object travels per unit of time
- 22. a force applied through distance
- 23. stored energy
- 26. energy due to motion
- 28. a quantity that can more than a single value
- 31. energy the sum of kinetic and potential energy
- 33. a push or a pull
- 34. the amount of space occupied by an object
- 35. a factor that does not change
- 37. a change in an objects position compared to a reference point
- 38. the part of an experiment being tested
- 39. the gravitational force exerted on an object
- 40. a procedure used to test a hypothesis
Down
- 1. a force that opposes a sliding motion
- 3. produced by an objects mass and velocity
- 5. a machine that uses two or more simple machines
- 6. a possible solution to a problem from previous knowledge
- 8. the ratio of output force to input force
- 9. the ratio of output work to input work
- 12. an explanation based on many observations and investigations
- 17. the speed of an object with direction
- 18. an exact quantity everyone agrees on to measure
- 20. the rate at which energy is converted
- 24. the mass per unit volume of a material
- 25. a visual display of data
- 27. an attractive force between two objects subject to mass and distance
- 29. is the result from an experiment
- 30. a machine that does work with one movement
- 32. an idea, event, or object to help people understand it
- 36. the distance and direction of an objects movement