Physics Formula Test

Question 1

final velocity

Answer 1

v = v(o) + at

Question 2

displacement

Answer 2

x = xo + v(o)t + 1/2 at^2

Question 3

final velocity squared

Answer 3

v^2 = v(o)^2 + 2a(x-x(o))

Question 4

Newton’s Second Law

Answer 4

(Sum of all forces) F = ma

Question 5

centripetal acceleration

Answer 5

a(c) = v^2 / r

Question 6

torque

Answer 6

τ = rFsinθ

Question 7

Force of Friction

Answer 7

F(f) ≤ μN

Question 8

momentum

Answer 8

p = mv

Question 9

Impulse

Answer 9

J = FΔt =Δp

Question 10

kinetic energy

Answer 10

K = (1/2)mv ^2

Question 11

gravitational potential energy ΔU(g)

Answer 11

ΔU(g) = mgh

Question 12

work

Answer 12

W = FΔrcosθ

Question 13

average power

Answer 13

P (avg) = W / Δt

Question 14

power

Answer 14

P = Fvcos θ

Question 15

spring force

Answer 15

F(s) = -kx

Question 16

density

Answer 16

p = m/V

Question 17

pressure at depth

Answer 17

P = P(o) = pgh

Question 18

period

Answer 18

T = 1/f

Question 19

force of gravity

Answer 19

F(g) = -(Gm(1)m(2))/(r^2)

Question 20

gravitational potential energy U (g)

Answer 20

U(g) = -(Gm(1)m(2))/r

Question 21

buoyant force

Answer 21

F = pVg

Question 22

flow rate

Answer 22

A(1)v(1) = A(2)v(2)

Question 23

Bernoulli’s equation

Answer 23

P = P + pgy + (1/2)p(v^2) = const.

Question 24

thermal expansion

Answer 24

Δl = al(o)ΔT

Question 25

heat transfer

Answer 25

H = (kAΔT)/L

Question 26

pressure

Answer 26

P = F/A

Question 27

Ideal Gas Law

Answer 27

PV = nRT = Nk(b)T

Question 28

kinetic energy of molecules

Answer 28

K (avg) = (3/2)k(b)T

Question 29

root mean squared velocity

Answer 29

v(rms) = √(3RT/M) = √(3k(b)T/ μ)

Question 30

work on a gas

Answer 30

W = -PΔV

Question 31

internal energy

Answer 31

ΔU = Q + W

Question 32

efficiency

Answer 32

e = |W/Q(H)|

Question 33

carnot efficiency

Answer 33

e(c) = (T(h) - T(c))/T(h)

Question 34

spring potential energy

Answer 34

U(s) = (1/2)kx^2

Question 35

period of a spring

Answer 35

T(s) = 2π√(m/k)

Question 36

period of a pendulum

Answer 36

T(p) = 2π√(l/g)

Question 37

electric force

Answer 37

F = kq(1)q(2) / r^2

Question 38

electric field

Answer 38

E = F/q

Question 39

electric potential Energy

Answer 39

U(E) = qV = kq(1)q(2) / r

Question 40

average electric field

Answer 40

E(avg) = -(V/d)

Question 41

electric potential in a circuit

Answer 41

V = k[(q1/r1) + (q2/r2) + (q3/r3) + …]

Question 42

capacitance

Answer 42

C = Q/V = E(o)A / d

Question 43

potential energy of a capacitor

Answer 43

U(c) = 1/2QV = 1/2CV^2

Question 44

average current

Answer 44

I(avg) = ΔQ/ Δt

Question 45

resistance

Answer 45

R = pl/A

Question 46

electric potential

Answer 46

V = IR

Question 47

electric power

Answer 47

P = IV

Question 48

parallel capacitance

Answer 48

C(p) = C1 + C2 + C3 + ….

Question 49

series capacitance

Answer 49

1/C(s) = 1/C1 + 1/C2 + 1/C3

Question 50

series resistance

Answer 50

R(s) = R1 + R2 + R3 + ….

Question 51

parallel resistance

Answer 51

1/R(p) = 1/R1 + 1/R2 + 1/R3 + ….

Question 52

magnetic force on a charge

Answer 52

F(b) = qvBsinθ

Question 53

magnetic force on a wire

Answer 53

F(b) = BIlsinθ

Question 54

magnetic field around a current-carrying wire

Answer 54

B = μ(o) I / 2πr

Question 55

magnetic flux

Answer 55

Φ(m) = BAcosθ

Question 56

average electromotive F

Answer 56

E(avg) = - ΔΦ(m)/Δt

Question 57

electromotive force

Answer 57

E = Blv

Question 58

velocity of a wave

Answer 58

v = fλ

Question 59

index of refraction

Answer 59

n = c/v

Question 60

Snell’s Law

Answer 60

n1sinθ1 = n2sinθ2

Question 61

critical angle

Answer 61

sinθ(c) = n2/n1

Question 62

thin lens eqn.

Answer 62

1/s(i) + 1/s(o) = 1/f

Question 63

magnification

Answer 63

M = h(i)/h(o) = -s(i)/s(o)

Question 64

focal length

Answer 64

f = R/2