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Science Newton Keyterms > keyterms > Flashcards

keyterms Flashcards

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1
Q

The state in which one objects distance from another is changing.

A

Motion

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2
Q

A place or object used for comparison to determine if something is in motion.

A

Reference Point

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3
Q

The distance the object travels per unit of time.

A

Speed

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4
Q

Over all rate of speed at which an object moves, calculated by dividing the total distance traveled by the total time.

A

Average Speed

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5
Q

Rate at which an object is moving at a given instant in time.

A

Instantaneous Speed

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6
Q

Speed in a given direction

A

Velocity

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7
Q

Steepness of a line on a graph.

A

Slope

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8
Q

Rate at which velocity changes.

A

Acceleration

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9
Q

A push or pull

A

A force

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10
Q

The combination of all forces acting on an object.

A

Net Force

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11
Q

Change direction, stop moving, start moving

A

Unbalanced Forces

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12
Q

Equal forces acting on one obj in opposite directions

A

Balanced forces

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13
Q

The force that pulls objects towards each other.

A

Gravity

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14
Q

When the only force acting on falling obj is gravity; obj accelerates as it falls

A

Freefall

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15
Q

Fluid friction experienced by an object falling through air

A

Air Resistance

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16
Q

The greatest velocity a falling obj reaches; reached when force of air= weight of obj

A

Terminal Velocity

17
Q

Something that is thrown.

A

Projectile

18
Q

Force that 2 surfaces exert on each other when they rub against each other.

A

Friction

19
Q

The friction that acts on objects that aren’t moving.

A

Static Friction

20
Q

Occurs when 2 solid surfaces slide over each other

A

Sliding Friction

21
Q

Occurs when an object rolls across a surface.

A

Rolling Friction

22
Q

Occurs when a solid object moves through a fluid.

A

Fluid Friction

23
Q

The tendency of an object to resist a change in motion.

A

Thertia

24
Q

A characteristic of a moving obj that’s related to its mass and velocity

A

Momentum

Science Newton Keyterms (1 decks)

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