[Total: 12] 3. A student's plastic bottle of water tips over in class.
Plan an experiment to investigate how the quantity of water in a plastic bottle affects its stability.
The plastic bottle holds up to 2000 cm3 of water and has a height of 42 cm.
(a) Write a plan for the experiment, including:
the apparatus needed
• instructions for carrying out the experiment
the values you will use for the quantity of water
• how you will make sure your results are as accurate as possible
• the graph you will plot from your results
A diagram is not required, but you may add Fig. 4.1, or draw your own diagram, if it helps to explain your
plan.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.