(b) The graph shows the vertical velocity of the skydiver during the first 40 s of the fall. His parachute is not open during this time.
Vertical
velocity
0
0
10
30
40
20
Time in s
Explain the shape of the graph.
(4)

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

The material that keeps its new shape after it is stretched is called?