What can suvat equations be used for?

For linking multiple variables together in moving particles with a constant acceleration

What equations can you use to work out velocity (v)?

v = u + at

v^2 = u^2 + 2as

What equation can you use to work out distance (s)?

s = ut + 1/2 at^2

s = vt - 1/2 at^2

s = (u+v)t /2

What is the equation linking distance, speed and time?

speed = distance / time

What is the equation linking displacement, time and average velocity

average velocity = displacement / time

On a velocity time graph, what does it mean when the velocity is below the time line?

The object is moving in the opposite direction/ heading back to starting point

How do you work out displacement from a velocity-time graph?

By finding the area under the graph

How is constant acceleration drawn on a velocity time graph?

A straight line with a constant gradient

What is the value given to acceleration due to gravity?

9.8 ms^-2

When an object moves upwards, what is the value for gravitational acceleration?

-9.8 ms^-2

What is weight represented as?

W = mg

(W = mass x 9.8)

What direction does friction act in?

The opposite direction to what the particle is moving in

What is the equation friction?

Fr = mew x reaction

(friction = coefficient of friction x reaction)

What is newtons first law?

That every object remains at rest or moves with constant velocity unless an external force is applied

What is newtons second law?

The resultant forces acting on an object are equal to the acceleration of the object multiplied by its mass

(F = ma)

What is newtons third law?

If an object exerts a force onto another object, an equal force must be exerted back

How do you get from an equation of displacement to velocity then to an equation of acceleration?

Differentiate the equation from distance to velocity, then once again to an acceleration equation

How do you get from an equation of acceleration to velocity and displacement?

Integrate the acceleration equation into a velocity equation then again into a displacement equation

What does it mean to have a uniform rod?

Where the centre of mass is at the midpoint of the rod