{"ad_unit_id":"App_Resource_Canonical","width":300,"height":250,"rtype":"mind_map","rmode":"view","sizes":"[[[0, 0], [[300, 250]]]]","custom":[{"key":"env","value":"production"},{"key":"rtype","value":"mind_map"},{"key":"rmode","value":"view"},{"key":"uauth","value":"f"},{"key":"ulang","value":"en_us"}]}

Resumo para o exame nacional - Fernando Pessoa Ortónimo, Alberto Caeiro , Ricardo Reis e Álvaro Campos

miminoma
Physics - Dynamics & Space

1 Vectors and
Scalars

1.1 Scalars have magnitude only

1.1.1 Speed

1.1.2 Distance

1.1.3 Mass

1.1.4 Energy
(kinetic too!!!)

1.2 Vectors have
magnitude and
direction

1.2.1 Velocity (v=s/t)

1.2.2 Displacement (s)

1.2.3 Acceleration
(a=[v-u]/t)

1.2.4 Force (F=ma)

1.2.5 Weight (W=mg)

2 Instantaneous Speed

2.1 Measured over very short
distances or time intervals

2.2 Light Gate Experiment

2.2.1 Instantaneous Speed =
length of card / time light
beam is broken

3 Average Speed

3.1 Measured over
longer distances or
time intevals

4 Newton's Laws of Motion

4.1 Newton's 1st Law of Motion

4.1.1 An object will remain at rest or at a constant
speed in the same direction unless acted upon by
an external unbalanced force

4.2 Newton's 2nd Law of Motion

4.2.1 Force = mass x acceleration

4.2.1.1 F=ma

4.3 Newton's 3rd Law of Motion

4.3.1 For every action there is
an equal and opposite
reaction

4.3.2 If A exerts a force on B, then B exerts an
equal and opposite force on A.

5 Projectiles

5.1 Projectile motion is viewed as two separate motions

5.1.1 Horizontal

5.1.1.1 The projectile remains at a constant
speed horizontally. Excluding air
resistance, there are no forces acting
upon the projectile.

5.1.2 Vertical

5.1.2.1 The projectile accelerates downwards
at 9.8 m/s^2 due to weight (the force
due to gravity)

5.2 The projectile follows a curved path because it is
travelling at a constant speed horizontally, but
accelerating vertically downwards at the same time.