Équations

Question 1

What is the equation for work done?

Answer 1

Force x Displacement

Force x distance

Question 2

Calculate weight

Answer 2

Mass x Gravity

Question 3

What is 1 joule equal to

Answer 3

1 newton metre

Question 4

Calculate extension

Answer 4

Spring constant x extension

Question 5

What is the equation when a spring has reached the limit of its proportionality

Answer 5

0.5 x spring constant x (extension)2

Question 6

Equation for distance travelled

Answer 6

Speed x Time

Question 7

Equation for acceleration

Answer 7

Change in velocity / time

Question 8

Equation for uniform acceleration

Answer 8

(Final velocity)2 - (initial velocity)2=
2 x acceleration x distance

Or

Acceleration= change in velocity
—————————
Time

Question 9

Equation for resultant force

Answer 9

Mass x acceleration

Question 10

Equation for momentum

Answer 10

Mass x velocity

Question 11

Equation for something happening in a period

Answer 11

1/frequency

Question 12

Equation for wave speed

Answer 12

Frequency x wavelength

Question 13

Equation for a force

Answer 13

Magnetic flux density x current x length