CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 260: an event repeats every 1 h. Time for 2 cycles is:
A. 4 h
B. 2 h
C. 3 h
D. 1 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 259: an event repeats every 20 h. Time for 11 cycles is:
A. 219 h
B. 220 h
C. 222 h
D. 221 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 258: an event repeats every 19 h. Time for 10 cycles is:
A. 190 h
B. 192 h
C. 189 h
D. 191 h
Correct Answer: A
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 257: an event repeats every 18 h. Time for 9 cycles is:
A. 161 h
B. 162 h
C. 163 h
D. 164 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 256: an event repeats every 17 h. Time for 8 cycles is:
A. 138 h
B. 137 h
C. 135 h
D. 136 h
Correct Answer: D
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 255: an event repeats every 16 h. Time for 7 cycles is:
A. 112 h
B. 111 h
C. 113 h
D. 114 h
Correct Answer: A
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 254: an event repeats every 15 h. Time for 6 cycles is:
A. 92 h
B. 90 h
C. 91 h
D. 89 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 253: an event repeats every 14 h. Time for 5 cycles is:
A. 72 h
B. 70 h
C. 71 h
D. 69 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 252: an event repeats every 13 h. Time for 4 cycles is:
A. 51 h
B. 54 h
C. 52 h
D. 53 h
Correct Answer: C
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 251: an event repeats every 12 h. Time for 3 cycles is:
A. 35 h
B. 38 h
C. 36 h
D. 37 h
Correct Answer: C
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 250: an event repeats every 11 h. Time for 2 cycles is:
A. 24 h
B. 23 h
C. 21 h
D. 22 h
Correct Answer: D
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 249: an event repeats every 10 h. Time for 11 cycles is:
A. 109 h
B. 112 h
C. 110 h
D. 111 h
Correct Answer: C
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 248: an event repeats every 9 h. Time for 10 cycles is:
A. 92 h
B. 91 h
C. 89 h
D. 90 h
Correct Answer: D
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 247: an event repeats every 8 h. Time for 9 cycles is:
A. 74 h
B. 72 h
C. 71 h
D. 73 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 246: an event repeats every 7 h. Time for 8 cycles is:
A. 55 h
B. 57 h
C. 56 h
D. 58 h
Correct Answer: C
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 245: an event repeats every 6 h. Time for 7 cycles is:
A. 43 h
B. 42 h
C. 41 h
D. 44 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 244: an event repeats every 5 h. Time for 6 cycles is:
A. 30 h
B. 32 h
C. 31 h
D. 29 h
Correct Answer: A
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 243: an event repeats every 4 h. Time for 5 cycles is:
A. 21 h
B. 20 h
C. 19 h
D. 22 h
Correct Answer: B
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 242: an event repeats every 3 h. Time for 4 cycles is:
A. 12 h
B. 11 h
C. 14 h
D. 13 h
Correct Answer: A
Total time=period×cycles.
CSS - PMS - CCE - PCS - Everyday Science
EarthSpace and Scientific Instruments
Earth/space timing practice 241: an event repeats every 2 h. Time for 3 cycles is:
A. 7 h
B. 8 h
C. 6 h
D. 5 h
Correct Answer: C
Total time=period×cycles.