Physical Science Part 1
Across
- 2. the ratio of the distance an object moves to the amount of time the object moves
- 3. the SI unit of power
- 6. a common unit of power, equal to 764 watts
- 8. the constant velocity of a falling object when the force of air resistance equals the force of gravity
- 9. a device that uses a pressurized fluid acting on pistons of different sizes to increase force
- 12. fluid friction acting on an object moving through the air
- 13. energy obtained from flowing water
- 14. the tendency of an object to resist a change in its motion
- 15. a system of objects that are not moving in respect to one another
- 19. the energy stored in atomic nuclei
- 20. the equivalence of the buoyant force on an object and the weight of the fluid displaced by the object
- 24. the SI unit of work
- 26. thermal energy beneath Earth's surface
- 29. a substance or mixture that flows and has no shape of its own
- 31. the result of a force distributed over an area
- 32. the overall force acting on an object after all the forces are combined
- 34. the product of distance and the force in the direction an object moves
Down
- 1. the length of the path between two points
- 4. a steady change in velocity
- 5. the ability of a fluid to exert an upward force on an object placed in it
- 7. the energy associated with the motion and position of everyday objects
- 10. the total distance traveled divided by the time it takes to travel
- 11. sunlight that is converted into usable energy
- 16. movement in relation to a frame of reference
- 17. a friction force that opposes the motion of an object through a fluid
- 18. the movement of an object toward Earth because of gravity
- 21. the energy associated with electric charges
- 22. the energy stored in chemical bonds
- 23. the curved path of an object in free fall after it is given an initial forward velocity
- 25. the SI unit of pressure, equal to 1 newton per square meter
- 27. the percentage of the work input that becomes work output
- 28. an upward force due to a pressure difference between the top and bottom of a wing
- 30. the fixed point a lever rotates around
- 31. the rate of doing work
- 33. a push or pull that acts on an object