Transcript 2.8 Understanding radiation

1. Why do we use standard form?
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To annoy new students
To overcomplicate numbers
To make numbers easier to handle
To covert imperial to metric units easily
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2. What is 149 million in standard form?
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1.49 x 108
1.49 x 106
149 x 106
14.9 x 106
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3. What does a –ve power
mean in standard form?
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Negative number
Positive number
Large number
Small number
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4. What is the standard unit of
measures in science?
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Imperial
British
Metric
SY
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5. What is the SI unit for
temperature?
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Degrees
Kelvin
Degrees celsius
Degrees farenheit
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6. What is the SI unit symbol for
the amount of substance?
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kg
m
K
mol
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7. What is the prefix for billion?
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Milli
Micro
Mega
Giga
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8. What does the prefix nano
mean?
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Million
Millionth
Billion
Billionth
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9. What is the quantity created by
multiplying length, width and height?
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Length
Area
Volume
Moment
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10. How many cubic mm in a cubic m?
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Billion
Million
Thousand
Hundred
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11. In a fraction, what is a denominator?
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The line between the 25%
two numbers
The top number
The bottom number
The decimal version of the fraction
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12. Who or what is BIDMAS
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1. The original name for25%
the terminator
robot
2. The order that calculators calculate
3. Benders girlfriend in Futurama
4. The mathematician who invented
numbers
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13. What is 1.6752 to 2 d.p.’s?
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1.6
1.67
1.68
1.672
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14. What is 6.025301 to three
significant figures?
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6.0253
6.02
6.025
6.026
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15. What is 0.000120543 to
three significant figures?
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0.000
0.001
0.000120
0.000121
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16. What is the numerator of 3/5
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5
3/5
0.6
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17. If F = (GMm)/r2, what is r?
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F
GMm/F
GMm – F
(GMm/F)1/2
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18. Which of the following is not true?
1. Algebra is Arabic for ‘restoration’
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2. Algebra was introduced to the Muslim world
through an Indian mathematical text
3. Algebra was first written down by the
Babylonians thousands of years BCE
4. Algebra is boring
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19. What is mensuration?
1. The calculation of areas 25%
and volumes
of 25%
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shapes
2. The shedding of the uterine lining
3. The miserable faces of men in photographs
4. The latest grunge band from Seattle
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20. What is the surface area of a sphere?
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4/3πr3
πr2h
4πr2
1/3πr2
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