usyd phys1001 cs - spoonfeedme

Learn your uni course in one day. Check spoonfeedme.com for free video summaries, notes and cheat sheets by top students. CHEAT SHEET PHYS1001: Physics 1 University of Sydney 1 1D Motion Vector – A measurement with both magnitude and direction (e.g. Displacement) Scalar – A measurement with only magnitude (e.g. distance) Average Velocity ! !"# = ∆! ∆! Instantaneous Velocity ! !"#$ = !" !" Average Acceleration ! !"# = ∆! ∆! Instantaneous Acceleration ! !"#$ = !" !" Final Velocity ! !" = ! !" + ! ! ! Final Displacement with Avg. Velocity ! ! = ! ! + 1 2 (! !" + ! !" )! Final Displacement with Velocity and Acceleration ! ! = ! ! + ! !" ! + 1 2 ! ! ! ! Final Velocity without Time ! !" ! = ! !" ! + 2! ! ! ! − ! ! Objects in Freefall – Acceleration is –g (9.8m/s 2 ) 2 Vectors and 2D Motion Vector Addition – Tip to Tail Vector Subtraction – From the negative to the positive, or add the negative (! − ! = ! + (−! )) Vector Multiplication/Division by a Scalar – Only magnitude is multiplied or divided. Direction is reversed for negative scalars. Vector Components • Length ! = ! ! ! + ! ! ! • Direction ! = tan !! ! ! ! ! Unit Vectors: ! = ! x ! + ! y ! Projectile Motion • Position ! ! = ! ! + ! ! ! + 1 2 ! ! ! • Initial Horizontal Velocity ! !" = ! ! cos ! • Initial Vertical Velocity ! !" = ! ! sin !

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Learn your uni course in one day. Check spoonfeedme.com for free video summaries, notes and cheat sheets by top students.

CHEAT SHEET

PHYS1001: Physics 1 University of Sydney

1 1D Motion Vector – A measurement with both magnitude and direction (e.g. Displacement)

Scalar – A measurement with only magnitude (e.g. distance)

Average Velocity

!!"# =∆!∆!

Instantaneous Velocity

!!"#$ =!"!"

Average Acceleration

!!"# =∆!∆!

Instantaneous Acceleration

!!"#$ =!"!"

Final Velocity

!!" = !!" + !!!

Final Displacement with Avg. Velocity

!! = !! + !12 (!!" + !!")!

Final Displacement with Velocity and Acceleration

!! = !! + !!"! +12 !!!

Final Velocity without Time

!!"! = !!"! + 2!! !! − !!

Objects in Freefall – Acceleration is –g (9.8m/s2)

2 Vectors and 2D Motion Vector Addition – Tip to Tail

Vector Subtraction – From the negative to the positive, or add the negative (! − ! = ! + (−!))

Vector Multiplication/Division by a Scalar – Only magnitude is multiplied or divided. Direction is reversed for negative scalars.

Vector Components

• Length

! = !!! + !!

• Direction

! = ! tan!! !!!!

Unit Vectors:

! = !x! + !y! Projectile Motion

• Position

!! = !! + !!! +12!!

• Initial Horizontal Velocity

!!" = !! cos !

• Initial Vertical Velocity

!!" = !! sin !

Learn your uni course in one day. Check spoonfeedme.com for free video summaries, notes and cheat sheets by top students.

CHEAT SHEET

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