Physics year 10

Has a magnitude only

Has both a magnitude and direction

Final position - initial position (pythag sometimes) -Is a vector

distance/time - m/s or km/h

displacement/time - m/s or m/s^-1 with a direction

• Can be used to determine both speed & velocity • Straight line = object is stopped • Angle of slope determines speed/velocity • triangle formula needed sometimes

• Graph looks like a sideways T • Velocity of an object over period of time • When moving from positive to negative object is changing direction

acceleration = change in velocity/time m/s^2 or m/s^-2

multiply or divide by 3.6

Newtons

-Friction -Air resistance -Tension -Spring -Normal -Push/pull

-Gravity -Electrical forces -Magnetism GEM

Sum of all forces acting upon an object

Balanced = equal/zero Unbalanced = not equal

An object at rest stays at rest, or in motion stays in motion unless acted upon by an unbalanced force

Force due to gravity = mass x gravitational field strength

Eg = mass x gravity (9.8m/s2) x change in height

Force = mass x acceleration Mass & acceleration inversely proportional

Ek = 1/2 x mass x velocity^2 Ek = 1/2mv^2

For every action, there is an equal and opposite reaction

-Chemical -Elastic -Electrical -Gravitational CEEG

Inversely proportional

= mass x gravity

⬆force = reaction 🚀 ⬇force = action