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CSS - PMS - CCE - PCS - Everyday Science MCQs

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CSS - PMS - CCE - PCS - Everyday Science

CSS - PMS - CCE - PCS - Everyday Science MCQs With Answers

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CSS - PMS - CCE - PCS - Everyday Science Mechanics
Simple-machine practice 340: load is 100 N and effort is 40 N. Mechanical advantage is:
A. 2.5
B. 3.5
C. 2.25
D. 2.75
Correct Answer: A
MA = load/effort.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
Simple-machine practice 339: load is 290 N and effort is 35 N. Mechanical advantage is:
A. 9.12
B. 7.46
C. 9.29
D. 8.28571
Correct Answer: D
MA = load/effort.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
Simple-machine practice 338: load is 280 N and effort is 30 N. Mechanical advantage is:
A. 10.33
B. 8.4
C. 10.26
D. 9.33333
Correct Answer: D
MA = load/effort.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
Simple-machine practice 337: load is 270 N and effort is 25 N. Mechanical advantage is:
A. 11.88
B. 10.8
C. 9.72
D. 11.8
Correct Answer: B
MA = load/effort.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
Simple-machine practice 336: load is 260 N and effort is 20 N. Mechanical advantage is:
A. 15
B. 14
C. 12
D. 13
Correct Answer: D
MA = load/effort.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
Simple-machine practice 335: load is 250 N and effort is 55 N. Mechanical advantage is:
A. 5.55
B. 5
C. 4.54545
D. 4.09
Correct Answer: C
MA = load/effort.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 20 m/s with radius 20 m. Centripetal acceleration is:
A. 19 m/s²
B. 20 m/s²
C. 21 m/s²
D. 22 m/s²
Correct Answer: B
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 20 m/s with radius 10 m. Centripetal acceleration is:
A. 40 m/s²
B. 39 m/s²
C. 41 m/s²
D. 42 m/s²
Correct Answer: A
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 20 m/s with radius 5 m. Centripetal acceleration is:
A. 81 m/s²
B. 80 m/s²
C. 82 m/s²
D. 79 m/s²
Correct Answer: B
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 20 m/s with radius 2 m. Centripetal acceleration is:
A. 202 m/s²
B. 201 m/s²
C. 200 m/s²
D. 199 m/s²
Correct Answer: C
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 15 m/s with radius 20 m. Centripetal acceleration is:
A. 12.3 m/s²
B. 12.2 m/s²
C. 10.1 m/s²
D. 11.25 m/s²
Correct Answer: D
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 15 m/s with radius 10 m. Centripetal acceleration is:
A. 22.5 m/s²
B. 23.5 m/s²
C. 24.8 m/s²
D. 20.2 m/s²
Correct Answer: A
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 15 m/s with radius 5 m. Centripetal acceleration is:
A. 44 m/s²
B. 47 m/s²
C. 46 m/s²
D. 45 m/s²
Correct Answer: D
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 15 m/s with radius 2 m. Centripetal acceleration is:
A. 113.5 m/s²
B. 101.2 m/s²
C. 112.5 m/s²
D. 123.8 m/s²
Correct Answer: C
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 10 m/s with radius 20 m. Centripetal acceleration is:
A. 5 m/s²
B. 7 m/s²
C. 6 m/s²
D. 4 m/s²
Correct Answer: A
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 10 m/s with radius 10 m. Centripetal acceleration is:
A. 10 m/s²
B. 12 m/s²
C. 9 m/s²
D. 11 m/s²
Correct Answer: A
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 10 m/s with radius 5 m. Centripetal acceleration is:
A. 21 m/s²
B. 20 m/s²
C. 22 m/s²
D. 19 m/s²
Correct Answer: B
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 10 m/s with radius 2 m. Centripetal acceleration is:
A. 50 m/s²
B. 51 m/s²
C. 52 m/s²
D. 49 m/s²
Correct Answer: A
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 5 m/s with radius 20 m. Centripetal acceleration is:
A. 1.3 m/s²
B. 1.25 m/s²
C. 2.2 m/s²
D. 1.1 m/s²
Correct Answer: B
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science Mechanics
An object moves in a circle at 5 m/s with radius 10 m. Centripetal acceleration is:
A. 2.2 m/s²
B. 2.8 m/s²
C. 2.5 m/s²
D. 3.5 m/s²
Correct Answer: C
a = v²/r.
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