Unit 5: Forces Equations

Question 1

What is the equation to work out weight?

Answer 1

Weight = mass x gravitational field strength

Question 2

What is the equation to work out work done?

Answer 2

Work done = force x distance

Question 3

What is the equation to work out force? (2)

Answer 3

Force = spring constant x extension
Force = mass x acceleration

Question 4

What is the equation to work out moment of a force?

Answer 4

Moment of a force = force x distance

Question 5

What is the equation to work out pressure?

Answer 5

Pressure = force normal to a surface / area of that surface

Question 6

What is the equation to work out distance travelled?

Answer 6

Distance travelled = speed x time

Question 7

What is the equation to work out acceleration?

Answer 7

Acceleration = Change in velocity / time talen
Acceleration = (final velocity - inital velocity) / time taken

Question 8

What is the equation to work out resultant force?

Answer 8

Resultant force = mass x acceleration

Question 9

What is the equation to work out momentum?

Answer 9

Momentum = mass x velocity