Y11 equations

Question 1

What is the equation for calculating work done

Answer 1

work done = force x distance moved

Question 2

What is the equation for calculating power

Answer 2

power = work done / time

Question 3

what is the equation for calculating energy

Answer 3

energy = charge x potential difference

Question 4

What is the equation for calculating charge

Answer 4

charge = current x time

Question 5

What is the equation for calculating potential difference

Answer 5

potential difference = current x resistance

Question 6

What is the equation for calculating power (2)

Answer 6

power = energy / time

Question 7

What is the equation for calculating electrical power

Answer 7

electrical power = current x potential difference

Question 8

What is the equation for calculating density

Answer 8

density = mass / volume

Question 9

what is the equation for calculating force

Answer 9

force = spring constant x extension

Question 10

what is the equation for calculating electrical power (2)

Answer 10

electrical power = current squared x resistance

Question 11

Here’s a tip for writing the equation triangle

Answer 11

If to find the thing e.g distance you have to multiply two factors, it goes at the top of the triangle.

If you have to find the thing by dividing e.g speed or time it goes at the bottom of the triangle and the factor that goes first in the division goes at the top of the triangle.