How do I go about assessing the validity of a statement e.g. "Electricity, as a form of energy, is good for killing people and little else" assess the vaidity of this statment??
A statement is deemed valid when the conclusion the student draws upon follows current works or theories.
From the given statement, I see three distinct conclusions that the text draws upon;
1) Electricity is a form of energy
2) It is good for killing people
3) Its use is very limited
So in your response, you need to address each point individually and then as an overall conclusion.
Energy is the capacity to do work, electrical energy is the movement of electrons and thus contains kinetic energy. So the first statement is valid (although saying "electricity" isn't the best wording, but I'll assume that's fine
)
It indeed has the ability to easily kill people, as little as 0.1 amps can stop the heart and has proven fatal. (This, however, is not assessed in HSC physics, so just acknowledging the fact that this statement holds
some truth should be sufficient)
The last statement is probably the most critical aspect that cracks the validity, you should already know through the motors and generators topic, that electrical energy has huge uses. (globalisation, advanced medical equipment, more leisure through mechanical applications, etc...) use points such as these to prove that this point is indeed invalid.
Sum everything up, show that the statement has some truths, but overall does not have accurate conclusions and is thus invalid.
Hope this helps
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