1. Chapter 2 Vocabulary(:
By: Allisha Lightning

2. SECTION 1(:

3. Force Meaning: a push or pull
Illustration: Sentence: we studied force.
Key word: push

4. Newton Meaning: the strength of a force measured in SI unit.
Illustration:
Key Word: strength Sentence: our science books studied Newton.

5. Net Force Meaning: the combination of all forces acting on an object.
Illustration:
Key Word: Combination
Sentence: net forces are used in science.

6. Unbalanced Forces Meaning: a net force acting on the forces
Illustration:
Key Word: uneven Sentence:
unbalanced forces can cause an object to start or stop moving.

7. Balanced Force
Meaning: equal forces acting on one object in opposite directions
Illustration:
Keyword: we tested out balanced force.
Sentence: the balance force was tested in experiments.

8. Section 2(:

9. Friction Meaning: the force resisting the relative motion of surfaces.
Illustration:
Sentence: we studied friction in our science lab.
Key Word: sticky

10. Static Friction
Meaning: a force that resists the lateral movement of two objects.
Illustration:
Sentence: the static friction is explained in great detail on the Internet.
Key word: static

11. Sliding Friction
Meaning: when two solid objects slide against each other.
Illustration:
Sentence: cars have sliding friction
Key Word: slippery

12. Fluid Friction
Meaning: the movement of a solid objects as it moves through a gas or liquid.
Illustration:
Sentence: cars should have fluid friction
Key Word: transparent

13. Rolling Friction
Meaning: when a round or circular object rolls on a flat surface
Illustration:
Sentence: rolling friction is often called sliding friction.
Key Word: roll

14. Gravity Meaning: the force that brings objects back down to earth
Illustration:
Sentence: gravity is what makes us stay on earth
Key word: down

15. Mass
Meaning: quantitive measure of the resistance an object has to change in its velocity.
Illustration:
Sentence: the mass never changes on the moon only the weight.
Key Word: space

16. Weight Meaning: the amount of heaviness measured/ or mass.
Illustration:
Sentence: your weight changes on the moon due to the lack of gravity.
Key Word: heaviness

17. Free Fall
Meaning: To drop or come down freely under the influence of gravity.
Illustration:
Sentence: the acorn was free falling from the tree.
Key Word: fall

18. Air Resistance
Meaning: the opposition of the atmosphere to forward movement;
Illustration:
Sentence: the air resistance of an object can be measured.
Key Word: stop

19. Terminal Velocity
Meaning: the maximum velocity of a body falling through a viscous fluid.
Illustration:
Sentence: the terminal velocity of an object is measured with air resistance.
Key Word: velocity

20. Projectile
Meaning: is any object projected into space (empty or not) by the exertion of a force.
Illustration:
Sentence: its like projectile vomiting
Key Word: vomiting

21. SECTION 3(:

22. Inertia
Meaning: A property of matter by which it continues in its existing state of rest or uniform motion in a straight line
Illustration:
Sentence: inertia is in the 2008 science book in the labs.
Key Word: lazy

23. SECTION 4(:

24. Momentum
Meaning: the mass and the velocity of the moving object in the frame of reference
Illustration:
Sentence: momentum is a key word on the test
Key Word: moving

25. Law of Conservation of Momentum
Meaning: states that if no external force acts on a closed system of objects
Illustration:
Sentence: law of conservation of momentum relates to momentum. Obviously.
Key Word: momentum

26. Section 5(:

27. Satellite Meaning: the satellites in the space place. Illustration:
Sentence: the satellite in in the space and gives us facebook and internet.
Key Word: internet

28. Centripetal Force
Meaning: is a force that makes a body follow a curved path
Illustration:
Sentence: we are studying centripetal force.
Key Word: curve

29. Bibliography(: http://www.google.com/ http://dictionary.reference.com/
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