1
Q
Before taking any measurements the student adjusted the ruler to make it vertical. Explain why adjusting the ruler from slanted to vertical is important.
A
- to reduce error in measuring
- the ruler at an angle would make the measurements shorter
2
Q
How can a graph show is A and B are directly proportional?
A
A straight line through the origin
3
Q
Out of theory A and B most scientists now only use theory B. Suggest why they think theory A is wrong.
A
-new evidence/observations can’t be explained by theory A
Physics: P 5
flashcards
Decks in class (3)
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