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Middle School Physical Science Vocabulary
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Middle School Physical Science Vocabulary
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25 Questions

1. a device that changes the direction or size or both of a force

2. upward force exerted by a fluid which counteracts the weight of an object immersed in that fluid. Equal to the weight of the fluid displaced by an object

3. Law of inertia: an object continues in a state of rest or at uniform velocity unless acted upon by an unbalanced force.

4. an object is falling with no outside forces acting on it except gravity

5. Product of an objects mass and its velocity. A property of matter in motion. The tendency of objects to keep moving in the same direction with the same speed

6. created by other types of energy, such as using chemical, nuclear or solar energy to spin a generator

7. the point or line around which an object rotates.

8. a change in pressure at any point in an enclosed incompressible fluid as rest is carried to all other points in the fluid at the same strength

9. An object immersed in a fluid is buoyed up by a force equal to the weight of the fluid it displaces

10. Attached to the load and moves up as the load is lifted. MA=2

11. Resistance to change in motion

12. Devices that can multiply forces and are commonly used when a small force is needed to move a big object

13. when the speed of a fluid increases, the internal pressure of the fluid decreases

14. a slanting surface that connects a lower level to a higher level

15. constant angular rate of rotation

16. the amount of work done when a force of 1 N acts over a distance of 1 m.

17. Scalar quantity defined as the product of force and distance. The transfer or energy. J

18. variable angular rate of rotation

19. an object that is influenced by gravity only

20. the rate at which the velocity of an object changes over time

21. distance an object travels divided by time

22. the total amount of momentum in a system cannot change

23. 6.673 x 10^11

24. the motion of an object that is dropped, shot, thrown or launched into the air. Uses two dimensions

25. the amount of heat contained within an object; measured by measuring the temperature of a system

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