# science test 12

## Terms

undefined, object

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- g
- gravity is symbolized by what letter
- galileo
- an italian philosopher who questioned the truthfulness of Aristotle's ideas about falling objects
- vector addition
- process of finding the resultant by stringing the initial vectors together
- deceleration
- negative acceleration
- force
- pushing and pulling action of 1 object upon another
- pythagorean theorem
- the square of the hypotenuse is equal to the sum of the squares of the other 2 sides
- inertia
- tendency of matter to resist changes in motion
- newton
- SI unit of force
- vector quantity
- a quantity having both magnitude and direction
- velocity
- speed in a particular direction
- speed
- distance traveled in a given time
- 3rd law
- what law of motion is a thrust of a rocket?
- principia
- a book newton wrote on his laws of motion
- aristotle
- a greek philosopher whose teachings dominated scientific thought for almost 2000 years
- 1st law of motion
- what law of motion can be referred to as the law of inertia?
- newton
- an english scientist who discovered the laws of motion and gravitation
- mechanics
- branch of physics dealing with the study of objects in motion
- acceleration
- change in speed or direction
- scalar quantities
- physical quantities such as speed that that have magnitude but no direction
- pairs
- according to the 3rd law of motion all forces occur in what type of grouping?