Physics Newton's Laws Unit

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23 Terms

1

Weight

The amount of matter in the object.

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2

Mass

The force pulling the object downward.

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3

9.81

Acceleration due to gravity.

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4

Inertia

Object’s resistance to change in motion.

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5

Force

A push or pull on an object.

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6

Friction

The force that resists motion.

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7

Normal force

The perpendicular force one surface exerts on another surface when the surfaces are in contact.

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8

Scalar

Quantities that are completely specified by magnitude and have no direction.

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9

Vector

Quantities that are completely specified by magnitude and direction.

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10

V = d/t

Velocity’s formula

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11

t = square(2*h/9.81)

Time’s formula

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12

V*Sin0

Vertical velocity

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13

V*Cos0

Horizontal velocity

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14

dx = (Vi²*Sin20)/9.81

Range distance

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15

First Law

The law states that an object with no net force acting on it remains at rest or moves with constant velocity in a straight line.

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16

F = m*a

Second Law of Newton

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17

Third Law

The law states that whenever one object exerts a force on a second object, the second object also exerts a force on the first object, equal in magnitude and opposite in direction.

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18

Law of universal gravitation

The law states that every object in the universe attracts every other object with a force along an imaginary line between them.

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19

Center of gravity

The point at which the entire weight of a body maybe considered to be concentrated, so that if supported at this point the body would remain in equilibrium in any position.

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20

Parallel force

The force pushes the object down the inclined plane.

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21

Projectile

Terms of position, velocity and acceleration.

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22

Trajectory

The path followed by a projectile in motion.

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23

Coefficient of friction

The degree of surface roughness.

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