Across
- 3. the branch of mathematics that represents problems in the form of mathematical expressions
- 5. the unit measurement of frequency, equal to one cycle per second.
- 7. numbers that are followed by a variable
- 11. the combination of angles that form a straight angle (the sum is 180 degree).
- 12. a unit used to measure the intensity of a sound
- 14. able to be changed or adapted.
- 15. a state of numbers that does not change
Down
- 1. how often sound waves pass in a set of time. It can be high or low.
- 2. force that resists the sliding or rolling of one solid object over another
- 3. tells us how much energy the sound wave has.
- 4. based on or characterized by the methods and principles of science.
- 6. the space (usually measured in degrees) between two intersecting lines
- 7. combination of two acute angles that form a right angle (the sum is 90 degree).
- 8. an instance of one moving object or person striking violently against another.
- 9. the ability to do work
- 10. the order of thought or behavior; systematic planning or action.
- 13. how high or low a sound is.