School physics

Question 1

all motion equations (4)

Answer 1

x = ½(v + v₀)t

x= v₀t + ½at²

v²=v₀² + 2aΔx

v= v₀ + at

Question 2

dot and cross product

Answer 2

Dot product:

A • B = A*B*cos(ø)

Cross product

A x B = A*B*sin(ø)

Question 3

Diffraction equations(3)

Answer 3

tan(Ø) = y/D

y=(mλD)/a

sin(Ø) = mλ/a

D is distance to wall

Y is distance between interference

a is width of slit

m is order(1st, 2nd third)

Question 4

SHM(5)

Answer 4

v=sqrt(Ft/ML)

x(t)=Acos(wt)

w = sqrt(k/m)

T = 2π*sqrt(L/g)

w = 2π/T

Question 4

sound 3 things

Answer 4

Open

λ = 2L

Closed

λ = 4L

Question 6

all spring energy(2)

Answer 6

f = -kx

PE_e = .5kx²

Question 7

Optics:: (2)

Answer 7

n1 * sin(Ø1) = n2 * sin(Ø2)

N = C/V

Question 8

Momentum and stuff(3)

Answer 8

P(momentum) = m * velocity

Force * time = m * velocity

Impulse = change in linear momentum

Question 9

linear translates to rotational coordiantes by..

Answer 9

x turns to θ

v turns ω

a turns to α

Question 10

Rotational equations(5)

Answer 10

v = ω * r

A_c = ω² * r

v = 2πr/T

A_c = v²/r

a = α * r