Across
- 2. _______ , in rotational (or circular) motion/mechanics, is analogous to force, designated by the Greek letter Tau.
- 6. _______ pressure is exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity. It increases in proportion to depth measured from the surface because of the increasing weight of fluid exerting downward force from above.
- 10. Measured in the same units as a linear distance (meters), ____ length is a part of a circle,
- 12. this scalar quantity is a measure of the degree of heat present in an object or substance.
- 15. One ________ is equal to a pressure off 1.01x10^5 Pa.
- 17. designated by the Greel letter capital Delta, ________ is equivalent to the error in a measurement or number.
- 18. This vector quantity is equal to the rate of change of the velocity per time.
- 20. In circular, or rotational, motion, ________ acceleration is always directed perpendicular to the line between the object and the center of the circle.
- 22. air-, or wind-______, is due to the action of air molecules bouncing off a moving object, and tends to slow it down... creating “drag”.
- 24. ________ Principle states that the buoyant force on an object suspended or floating in a liquid is equal to the weight of the displaced fluid/liquid...
- 32. ______ weight of an object suspended in a liquid is equal the difference of its weight in air and the weight of the displaced liquid.
- 33. For calculating angles of a right triangle, we use three main trigonometric functions… we talk about them using following mnemonic…. Soa-cah-___.
- 34. ______’s Principle is utilized in the design of hydraulic brakes, and allows us to supply a much greater force than we would ordinarily be able to produce.
- 36. A(n) _______ can be regarded as an inelastic collision in reverse.
- 37. Newton’s third law states that, for every action, there is an equal and opposite ______.
- 38. This is the curved upper surface of a liquid... (from our first lab on measurement).
Down
- 1. A _______ force is the force that pushes up on an object placed in water...
- 3. the ________ variable is the one that you change in an experiment, usually plotted on the x-axis.
- 4. ______ Laws in physics and chemistry, are those laws which state that certain quantities (such as mass, momentum, energy) are not lost, during a process or interaction.
- 5. One _______ is defined as approximately 750 Watts.
- 7. The SI unit for Power is the ______, and is derived from Joulse per second.
- 8. desgnated by the Greek letter ____, this variable represents density, or mass per volume.
- 9. In circular motion, _______ acceleration is always directed toward the center of the circle.
- 11. ______ is the study of moving objects. (Describing “how” they move, but not necessarily “why” they are moving.)
- 13. A state of _________ exists when an object has all forces acting upon it totaling zero.
- 14. Having only magnitude, and not direction, speed is an example of a ______.
- 16. if an object has a specific gravity of 1.55 g/cm3... it will _____ in water.
- 19. a ______ force is exerted perpendicular to the plan of contact.
- 21. A collision in which both momentum and kinetic energy are conserved is called a(n) ______ collision
- 23. a quantity, usually designated by a letter, that may change in a math or physics problem.
- 25. The _________ of a right triangle can be calculated by: the square root of the sum of the squares of the other two sides of the triangle.
- 26. Total ______ energy is equal to the sum of potential energy and kinetic energy.
- 27. This instrument is used to meaure the internal or external diameter of round or cylindrical objects.
- 28. There are two types of friction between two surfaces: ______ and sliding.
- 29. the ________ variable is the one, for which you collect data, and is usually plotted on the y-axis.
- 30. when matter is in the ________ state, or phase, its molecules cannot move freely, except to vibrate.
- 31. when matter is in the ________state, or phase, its molecules move freely, but must be completely surrounded by a container or held together by gravitational pull, in order to be contained.
- 35. Free-_____ diagrams are also caled force diagrams, and are useful in setting up, or depicting, mechanics problems.
- 38. a quantity of matter, designated by the letter m.