Across
- 4. a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
- 7. require a material to transmit energy, cannot transmit through a vacuum.
- 11. the acceleration of an object is directly related to the net force and inversely related to its mass.
- 13. a vector quantity that is defined as the rate at which an object changes its velocity.
- 15. a measure of the amount of matter in an object.
- 16. described by a magnitude and direction and are represented by a line and an arrow.
- 19. the time it takes to respond to a situation.
- 20. the branch of science concerned with the nature and properties of matter and energy.
- 22. can transmit energy through a vacuum (empty space), does not need material – transverse waves
- 24. An opposing force that’s applied by a surface on an object.
- 26. a scalar quantity that refers to "how much ground an object has covered" during its motion.
- 27. energy the total molecular motion (kinetic energy) in a substance
- 30. quantities that are fully described by a magnitude (or numerical value) alone.
- 32. the study of the motion of objects.
- 33. the number of cycles per second /time
- 34. The standard metric unit of measurement for energy
- 35. the bending of the path of a light wave as it passes across the boundary separating two media.
- 36. The process of a rough calculation, approximation or judging the value or size of something.
- 38. transfer through electromagnetic waves – the sun reaches the earth
- 39. the science of describing the motion of objects using words, diagrams, numbers, graphs, and equations
- 40. how close the measured value agrees with the true value.
- 43. caused by unpredictable, unknown changes in measurement instrument, procedure or environmental factors. They cannot be corrected by calculations.
- 44. particle to particle contact, passed on by vibration of molecules, greatest in solids, least in gases
- 46. The assignment of a number to a characteristic of an object/substance, which can be compared to a standard.
- 48. the tendency of a force applied to an object to make it rotate about an axis.
- 49. a diagrammatic representation of a single body or a subsystem of bodies isolated from its surroundings showing all the forces acting on it
- 50. the resistance of any physical object to any change in its velocity.
Down
- 1. the energy stored in an object due to its height above the Earth
- 2. the distance between the same points on two successive waves
- 3. a graph that represents variation in an objects position over the course of time.
- 5. angle of incidence equals the angle of reflection.
- 6. defined as the mass multiplied by velocity and is given the symbol p.
- 8. the property of an object or a system that determines the strength of the gravitational interaction with other objects, systems, or gravitational fields.
- 9. describes how repeatable the measured values are.
- 10. For every action, there is an equal and opposite reaction.
- 12. The extension of a spring is directly proportional to the stretching force
- 14. a push or pull upon an object resulting from the object's interaction with another object.
- 17. When an accelerating object changes its velocity by the same amount each second.
- 18. two points are in phase if they form whole wavelengths
- 21. a consistent, repeatable error associated with flawed equipment or experiment design. They can be corrected by calculations e.g. a worn out instrument.
- 23. a change in position of an object with respect to time.
- 25. the speed at any given instant in time.
- 28. energy that is possessed by an object due to its motion or due to its position.
- 29. if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
- 31. the average of all instantaneous speeds; found simply by a distance/time ratio.
- 37. maximum displacement from equilibrium position, tells the amount of energy
- 41. a structural feature mainly used in automobiles and recently incorporated into railcars
- 42. a mass parameter giving the inertial resistance to acceleration of the body when responding to all types of force.
- 45. time taken to make one complete cycle
- 47. in liquids and gases through movement of the fluid itself, the air condition, fan, refrigerator and land and sea breeze, boiling