Formulas Flashcards
What is the formula for average speed?
Average speed= total distance/ total time
What is the formula for acceleration?
Acceleration= change in velocity/ time
What does the area under the speed-time graph stand for?
Total distance travelled
What is the formula for gravitational field strength?
Gravitational field strength= force/ mass
What is the formula for weight?
Weight= mass x gravitational field strength
What is the formula for density?
Density= mass/ volume
What is the formula for pressure?
Pressure= force/ area
What is the formula for resultant force?
Resultant force= mass x acceleration
What is the formula for torque (moment of force)?
Torque= force x perpendicular distance
What is the formula for kinetic energy?
Kinetic energy= 1/2 x mass x velocity^2
What is the formula for gravitational potential energy?
GPE= mass x gravitational field x height
What is the formula for work done?
Work done= force x distance moved (in the same direction)
What is the formula for power?
Power= energy transferred/ time taken = work done/ time
What is the formula for speed of wave?
Speed of wave= frequency x wavelength
What is the formula for resistance?
Resistance= potential difference/ current
What is the formula for effective resistance in a parallel circuit?
EV in parallel circuit= 1/R1 + 1/R2…….
What is the formula for effective resistance in a series circuit?
EV in series circuit= R1 + R2
What is the formula for power?
Power= current x resistance
What is the formula for energy?
Energy= power x time
What is the formula for charge?
Charge= current x time
What is the formula for speed?
Speed= distance travelled/ time taken
What is the formula for velocity?
Velocity= displacement/ time taken
What is the formula for internal energy?
Internal energy= total kinetic energy + total potential energy of the particles
What is the formula for frequency?
Frequency= 1/time
What is the formula for reflective index of a medium using n?
N= sin i/ sin r
What is the formula for magnification?
Magnification= ratio of image height/ object height