1 mark (c) (i)
When the race started, a walker set off at a steady speed of 2m/s.
Draw a line on the graph on the previous page to show the distance covered
by the walker in the first 15 seconds. Use a ruler.
1 mark
Calculate how much time it will take for the walker to walk 100m.
S
1 mark
maximum 6 marks

You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.