Y10 equations

Question 1

What is the equation used to calculate the velocity of waves in air or water

Answer 1

velocity = frequency x wavelength

Question 2

What is the equation for calculating wave speed

Answer 2

wave speed = frequency x wavelength

Question 3

What is the equation for calculating efficiency

Answer 3

efficiency = useful energy used / total energy supplied

Question 4

What is the equation for calculating kinetic energy

Answer 4

kinetic energy = 0.5 x mass x velocity squared

Question 5

What is the equation for calculating change in gravitational potential energy

Answer 5

change in gravitational potential energy = mass x gravitational field strength x change in height

Question 6

What is the equation for calculating momentum

Answer 6

momentum = mass x velocity

Question 7

What is the equation for calculating distance

Answer 7

distance = speed x time

Question 8

What is the equation for calculating weight

Answer 8

weight = mass x gravitational field strength

Question 9

What is the equation for calculating force

Answer 9

Force = mass x acceleration

Question 10

What is the equation for calculating acceleration

Answer 10

Acceleration = change in velocity / time