Chapter 2 Vocabulary(: By: Allisha Lightning.

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Presentation transcript:

Chapter 2 Vocabulary(: By: Allisha Lightning

SECTION 1(:

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

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

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

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.

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.

Section 2(:

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

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

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

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

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

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

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

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

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

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

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

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

SECTION 3(:

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

SECTION 4(:

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

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

Section 5(:

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

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

Bibliography(: http://www.google.com/ http://dictionary.reference.com/ http://www.bing.com/ http://www.wikipedia.org/ I’m awesome(: