Equations paper 1

Question 1

What is the equation for velocity

Answer 1

Velocity = displacement / time

Question 2

what is the equation for speed

Answer 2

distance/ time

Question 3

what is the equation for acceleration

Answer 3

acceleration = change in velocity / time

Question 4

what is the equation for force

Answer 4

force = mass x acceleration

Question 5

what is the equation for weight

Answer 5

weight = mass x gravitational field strength

Question 6

what is the equation for momentum

Answer 6

momentum = mass x acceleration

Question 7

what is the formula for kinetic energy

Answer 7

1/2 x mass time velocity^2

Question 8

what is the equation for change in gravitational potential energy

Answer 8

change in GPE = mass x gravitational field strength x change in vertical height

Question 9

what is the equation for efficiency

Answer 9

efficiency = (useful energy transferred by the device) / ( total energy supplied to device)

Question 10

what is the equation for wave speed
from wavelength and frequency

Answer 10

wavelength x frequency

Question 11

what is the equation for wave speed from distance and time

Answer 11

distance / time

Question 12

equation fro distance travelled

Answer 12

distance traveled = average speed x time

Question 13

how to find gradient

Answer 13

vertical difference between 2 point on a graph / horizontal difference between the same 2 points

Question 14

what is the equation for stopping distance

Answer 14

stopping distance = thinking distance + breaking distance