Paper 2 equations

Question 1

What is the equation for acceleration?

Answer 1

Acceleration (m/s squared) = change in velocity (m/s) divided by time taken (s)

Question 2

What is the equation for momentum?

Answer 2

Momentum (kgm/s) = mass (kg) x velocity (m/s)

Question 3

What is the equation for wave speed?

Answer 3

Wavespeed (m/s) = frequency (hurtz) x wavelength (m)

Question 4

What is the pneumonic for remembering paper 2 physics equations?

Answer 4

When my goat
weight (n) = mass kg) x Gravitational field strength
Was feeling sick
Work done (j) = force (n) x distance (m)
Super vet, Tim
Distance (m) = speed (m/s) x time (s)
Found medical alternative
Resultant force (n) = mass (kg) x acceleration (m/s) squared
Fried kangaroo ears
Force (n) = spring constant (n/m) x extension (m)

Question 5

How do you work out the drag?

Answer 5

Thrust - resultant force