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Question 1 of 10
1. Question
Which statement best explains why ice is a good refrigerant?
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Question 2 of 10
2. Question
Bats, which are nocturnal, can fly swiftly in the dark without bumping to a barrier. This is because _____.
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Question 3 of 10
3. Question
Which of the following statements is true for both sound and light waves?
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Question 4 of 10
4. Question
Where does visible light fall in the electromagnetic spectrum?
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Question 5 of 10
5. Question
What kind of mirror is best used as side mirrors in cars?
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Question 6 of 10
6. Question
An object becomes positively charge if it _____.
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Question 7 of 10
7. Question
Which of the following equations shows the relationship between the current and voltage when resistance remains constant?
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Question 8 of 10
8. Question
If three light bulbs of different wattages are connected in series to a battery, which of the following will be true?
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Question 9 of 10
9. Question
The force that holds the atoms and molecules together to form larger bodies is known as _____.
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Question 10 of 10
10. Question
A radioactive sample has a mass of 15 grams, and its half-life is 10 days. What mass of the original sample remains after 20 days?
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