Equations

Question 1

How do you calculate force?

Answer 1

Force = mass x acceleration
F=MA
Force is in newtons

Question 2

How do you calculate distance?

Answer 2

Distance = speed x time
D=ST
Distance in metres

Question 3

How do you calculate momentum?

Answer 3

Momentum = mass x velocity
P=MV

Question 4

How do you calculate Pythagoras?

Answer 4

A2 + B2 = C2
- Once you’ve found c2 you find the square root of the number

Question 5

How do you calculate Pythagoras if you need to find b2?

Answer 5

B2 = C2 - A2
- Once you find b2 you then find the square root of that number

Question 6

Where are the 3 sides for trigonometry?

Answer 6

• Adjacent is the bottom of the right angle
• Opposite is the side of the right angle
• Hypotenuse is the opposite to the adjacent

Question 7

What’s the memory tool for trigonometry?

Answer 7

SOH CAH TOA

Sine = opposite + hypotenuse
Cosine = Adjacent + Hypotenuse
Tan = Opposite + Adjacent

Question 8

How do you find the missing side?

Answer 8

For example, if you are trying to find adjacent.
- If the hypotenuse is 16 and the angle is 32°
- You will need to use CAH (cosine)
Therefore you type Cos32 x 16 = the adjacent

Question 9

How do you calculate velocity ?

Answer 9

Velocity = change in position (displacement)/ change in time (s)

Question 10

How do you calculate acceleration?

Answer 10

Change in velocity/change in time (s)

Question 11

How do you calculate displacement ?

Answer 11

Final position - initial position

Question 12

How do you convert radians into degrees

Answer 12

Multiply by 180 and divide by pi

Question 13

How do you convert degrees into radians

Answer 13

Multiply by pi and divide by 180

Question 14

How do you convert degrees into revolutions

Answer 14

Divide by 360