Across
- 2. Energy- The energy of motion. A moving object has the most kinetic
- 7. third law- every time one object exerts a force on another object, the
- 11. The force that objects exert on each other because of their masses.
- 12. Machines- One of the basic machines on which al other mechanical
- 13. The rate at which velocity changes over time.
- 14. The use of force to move an object over a distance.
- 15. Has a north and south pole. Attracts or repels objects.
- 16. point- A location to which another location is compared.
- 18. arrangement, or chemical composition.
- 20. A speed in a specific direction.
- 22. A push or pull; something that changes the motion of an object.
Down
- 1. object exerts a force equal in size and opposite in direction back on the first object.
- 3. Machines- A machine that is made up of two or more simple machines.
- 4. The ability to do work or to cause a change.
- 5. The resistance of an object to a change in the speed or the direction of its motion.
- 6. Advantage- The number of times a machine multiplies the input force;output force divided by input force.
- 8. A measure of how fast something moves through a particular distance over a definite time period.Speed is distance divided by time.
- 9. Energy- Stored energy; the energy an object has due to its position,
- 10. A force that resists the motion between two surfaces in contact with on another.
- 13. a different motion to a second observer, depending on how the two observers are moving with respect to one another.
- 17. are based. The six simple machines are the lever,inclined plane, wheel, and axle, pulley, wedge, and screw.
- 18. A change in position over time.
- 19. at the point where it moves the fastest.
- 21. of reference- An object may appear to have one motion to one observer