MOGEA EXAM AND ANSWERS
Which of the following structural characteristics is most important if a substance is
to be a good electrical conductor? - answer-electrons that can move from atom to
atom
cross cutting scientific concepts - answer--patterns
-cause and effect
-stability and change
-systems and system models
which statements best explains why large changes in air temperature can result in
strong winds? - answer-changes in density cause air masses to rise and fall
which of the following reasons best explains why it is impossible for an insect to
grow to the size of an elephant - answer-its exoskeleton would be too heavy for its
muscles to life or move
A wind turbine ultimately converts the energy of wind into electrical energy.
During this process most of the energy that is wasted or lost is in the form of -
answer-Thermal energy
which kind of energy transfer is occurring between the warm water of a bath and
the body of a person sitting in the bath - answer-conduction
which of the following is the best example of feedback in a system - answer-when
a bright light is shined in the eyes, the pupils contract to protect the retina
a system in a stable equilibrium state is best described as a system where the: -
answer-competing parts within the system are balanced by negative feedback
mechanisms
scientists reclassifying Pluto as a dwarf planet due to the discovery of many other
Pluto-sized objects in the solar system is an example of which of the following
aspects of scientific knowledge? - answer-analyzing and interpreting data
which of the following experimental procedures will provide the most reliable
conclusions? - answer-observing the time it takes for water to drain through soil
samples known to contain different percentages of sand
