Physics Unit 2

[chaput]

Hi Guys,
I am starting unit 2 for physics and I am really scared about how it's gonna be. Can anyone give me good resources or ideas on how I shouls start prepping for it and what exactly is taught. I have looked through the study guide and it's not the best and I have also seen some khan aademy videos, which were alright. Does anyone know any other youtubers that will relate to the VCE unit 2 content?

Thanks:)

[Bri MT]

I'm going to follow the study design & elaborate on the dot points
-know the difference between vectors and scalars
      Vectors describe magnitude and direction   eg velocity  (how fast and what direction)
      Scalars describe magnitude only eg speed (how fast)
-analyse motion in one direction using the XUVAT formulas (select the right formula,  rearrange, sub in the right values)
-use the p=mv formula to find the momentum mass or velocity of a body
-use [net]F=[change in]p/[change in]t    to find these values
-understand that the force of gravity is represented as acting on the centre of mass,  and is calculated using F(g)=mg, and this is weight, and at Earth's surface g=9.8
-be able to draw and label force diagrams
-apply Newton's laws. MEMORISE and UNDERSTAND. There are differently worded versions of these,  this is what I use
      1. A body in motion will remain in unchanged motion and a body at rest will remain at rest,
 unless acted upon by an external unbalanced force
      2. All forces occur in pairs.  Each member of a force pair is equal in magnitude,  opposite in direction and acts on different objects
      3. The acceleration of a body is directly proportional to and in the direction of the applied unbalanced force,  and inveresly proportional to the mass of the body   
-be able to combine vectors and break them down into their components
- use torque=r [perpendicular]F
-analyse situations involving torque, realising that torque is equal on both sides of a pivot if rotation isn't occuring
-use formulas and graphs to find Work
-investigate force done to or by a spring using F=-k[change in]x   (k is a constant particular to that spring)
-realise that energy isn't created or destroyed (maybe not always 100% true but pretend it is),  and use formulas involving energy
-know that power is the rate of energy transfer P=E/t
-calculate effeciency
-know that impulse equals change in momentum,  and use this in problems involving momentum
-know that elastic collisions the total momentum in a system doesn't change

Hope this helps

[chaput]

I'm going to follow the study design & elaborate on the dot points
-know the difference between vectors and scalars
      Vectors describe magnitude and direction   eg velocity  (how fast and what direction)
      Scalars describe magnitude only eg speed (how fast)
-analyse motion in one direction using the XUVAT formulas (select the right formula,  rearrange, sub in the right values)
-use the p=mv formula to find the momentum mass or velocity of a body
-use [net]F=[change in]p/[change in]t    to find these values
-understand that the force of gravity is represented as acting on the centre of mass,  and is calculated using F(g)=mg, and this is weight, and at Earth's surface g=9.8
-be able to draw and label force diagrams
-apply Newton's laws. MEMORISE and UNDERSTAND. There are differently worded versions of these,  this is what I use
      1. A body in motion will remain in unchanged motion unless acted upon by an external unbalanced force
      2. All forces occur in pairs.  Each member of a force pair is equal in magnitude,  opposite in direction and acts on different objects
      3. The acceleration of a body is directly proportional to and in the direction of the applied unbalanced force,  and inveresly proportional to the mass of the body   
-be able to combine vectors and break them down into their components
- use torque=r [perpendicular]F
-analyse situations involving torque, realising that torque is equal on both sides of a pivot if rotation isn't occuring
-use formulas and graphs to find Work
-investigate force done to or by a spring using F=-k[change in]x   (k is a constant particular to that spring)
-realise that energy isn't created or destroyed (maybe not always 100% true but pretend it is),  and use formulas involving energy
-know that power is the rate of energy transfer P=E/t
-calculate effeciency
-know that impulse equals change in momentum,  and use this in problems involving momentum
-know that elastic collisions the total momentum in a system doesn't

Hope this helps

THANKS SO MUCH!! Bless your soul:)