CRUCIAL EQUATIONS - MECHANICS

Question 1

Equation for weight or mass?

Answer 1

Weight = Mass x Gravity

W = M x G

Question 2

Equation for Work done, force or distance?

Answer 2

Word Done = Force x Distance (moved along the line of action of the force)

WD = FD

Question 3

Equation for force, spring constant and extension?

Answer 3

Force = Spring Constant x Extension

F = K x E

Question 4

Equation for Moments, force or distance?

Answer 4

Moment = Force x Distance (perpendicular to direction of force)

  M      =    F      x      D

Question 5

Equation for Pressure?

Answer 5

Pressure = Force normal to a surface / Area of the surface

P = F / A

Question 6

Equation for distance, time and speed?

Answer 6

Speed = Distance / Time

S      =        D      /     T

Question 7

Equation for Acceleration?

Answer 7

Acceleration = Change in velocity / Time taken

       A         =            ΔV / t

Question 8

Equation for resultant force, mass and acceleration?

Answer 8

Force = Mass x Acceleration

F     =     M  x  A

Question 9

Equation for Momentum, mass or velocity?

Answer 9

Momentum = Mass x Velocity

P = M x V