P3, P8

any fuel taken from living or recently living materials, such as animal waste

a biofuel from a living organism that takes in as much carbon dioxide from the atmosphere as is released when the fuel is burned

energy released by radioactive substances deep within the Earth

the network of cables and transformers used to transfer electricity from power stations to consumers (i.e., homes, shops, offices, factories etc.)

substance used in nuclear reactors that releases energy due to nuclear fission

tiny positively charged object composed of protons and neutrons at the centre of every atom

the thick steel vessel used to contain fuel rods, control rods and the moderator in a nuclear fission reactor

energy from natural sources that is always being replenished so it never runs out

Distance in a given direction

force of a vehicle that makes it move (sometimes referred to as motive force)

a force (in Newtons (N)) can change the motion of an object

a diagram that shows the forces acting on an object without any other objects or forces shown

the force opposing the relative motion of two solid surfaces in contact

the size or amount of a physical quantity

if the resultant force on an object is zero, the object stays at rest if it is stationary, or it keeps moving with the same speed in the same direction

when two objects interact with each other, they exert equal and opposite forces on each othe

a geometrical method used to find the resultant of two forces that do not act along the same line

a single force that has the same effect as all the forces acting on the object

a physical quantity, such as mass or energy, that has magnitude only (unlike a vector which has magnitude and direction)

a vector is a physical quantity, such as displacement or velocity, that has a magnitude and a direction (unlike a scalar which has magnitude only)

The largest gradient will have the largest constant speed

The graph curves upwards meaning the gradient is increasing

Velocity x Time

Speed / Velocity