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# Practice Science Questions

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1. Q: How many seconds in a minute?

A: 60

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2. Q: How many minutes in one hour?

C: 60

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3. Q: How many meters in a kilometer?

B: 1,000

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4. Q: How many centimeters in a meter?

C: 100

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5. Q: How many grams in a kilogram?

D: 1000

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6. Q: How many hours are in a day?

C: 24

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7. Q: Nonzero digits are always significant figures?

A: TRUE

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8. Q: All final zeros after the decimal points are not significant figures?

B: FALSE

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9. Q: Zeros between two other significant digits are always significant?

A: TRUE

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10. Q: Zeros used solely for spacing the decimal point are significant?

B: FALSE

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11. Q: How many significant digits are there in the number 6.3?

B: 2

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12. Q: How many significant digits are there in the number 0.012?

A: 2

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13. Q: How many significant digits are there in the number 0.0076003?

D: 5

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14. Q: How many significant digits are there in the number .0320?

C: 3

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A: TRUE

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16. Q: In multiplication and division, round it up to the most number of significant digits?

B: FALSE

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17. Q: Using significant numbers, what does 4.22 * 2.3 = ?

C: 9.7

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18. Q: The equation y = mx + b describes what kind of relationship between variables x and y?

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19. Q: The equation xy = k where k is a constant describes what kind of relationship between variables x and y?

C: inverse

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20. Q: In a right-angled triangle, the angle between the Opposite side and the Adjacent side is always 90 degress?

A: TRUE

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