Energy/Momentum

Question 1

Work Equation

Answer 1

W = Fd x cos(theta)

Question 2

Power Equation

Answer 2

P = W/t

Question 3

Kinetic Energy Equation

Answer 3

K = mv^2/2

Question 4

Potential Energy Equation

Answer 4

U = mgh

Question 5

Pulley Equation

Answer 5

T1 + T2 = mg

Question 6

Efficiency Equation

Answer 6

Eff = (Load x Load Distance)/(Effort x Effort Distance)

Question 7

Momentum Equation

Answer 7

p = mv

Question 8

Impulse Equation

Answer 8

J = mv - mvo

Question 9

Elastic Collision Equation

Answer 9

m1v1i + m2v2i = m1v1f + m2v2f

Question 10

Inelastic Collision Equation

Answer 10

m1v1i + m2v2i = (m1 + m2)vf

Question 11

Thermal Expansion Equation

Answer 11

L = alpha x Lo x T

Question 12

Volume Expansion Equation

Answer 12

V = beta x Vo x T

Question 13

Conduction

Answer 13

Direct transfer of energy from molecule to molecule through molecular collisions, metals best conductors (touching a hot stove)

Question 14

Convection

Answer 14

Transfer of heat by the physical motion of the heated material takes place in liquids and gases (pot of boiling water)

Question 15

Radiation

Answer 15

Transfer of electromagnetic waves, only way to transfer heat through a vacuum (sun)

Question 16

Heat Equation

Answer 16

Q = mcT

Question 17

Heat of Transformation

Answer 17

Q = mL

Question 18

Pressure Equation

Answer 18

P = F/A

Question 19

First Law of Thermo

Answer 19

U = Q - W

Question 20

Second Law of Thermo

Answer 20

S = Q/T