Newton's Second Law

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A change in direction or speed causes

A change in the velocity of an object

Force is

A push or a pull

A change in the velocity of an object is called

Acceleration

If there is no gravitational force present,

An object would not have a weight

A force causes

An objects motion to change

Directly proportional means

Both variables do the same thing - either both increase or both decrease

Two ways an object's motion can be changed

Change its direction Change its speed

Acceleration is ______ proportional to Force

Directly - if force increases, acceleration increases - if force decreases, acceleration decreases

Unit that can be measured directly is called a

Fundamental Unit

Weight equation

Fw=mg Force of weight = mass x acceleration due to gravity

Acceleration is _____ proportional to Mass.

Inversely - if mass increases, acceleration decreases - if mass decreases, acceleration increases

Weight

Is a force that is affected by gravity

Mass

Is the amount of matter in an object Does not change with location of object (Earth vs. Moon)

Newton's Second Law other name

Law of Acceleration

SI Unit for force

Newton (N)

Acceleration of the object is in the ______ direction as the force that causes ___________.

Same Acceleration

Newton's Second Law states

The acceleration of an object is equal to the sum of the forces (net force) acting on the object, divided by the mass of the object.

Weight changes with

The location of an ibject

Inversely proportional means

The variables do the opposite thing - one increases and the other decreases

Newton's Second Law equation

a=Fnet/m Or Fnet=ma

Derived Unit for force

kg•m/(s^2) Force = mass (kg) x acceleration (m/(s^2))


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