CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 20 kg object raised 10 m is:
A. 1961 J
B. 1959 J
C. 1960 J
D. 1962 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 20 kg object raised 5 m is:
A. 979 J
B. 980 J
C. 981 J
D. 982 J
Correct Answer: B
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 20 kg object raised 2 m is:
A. 391 J
B. 394 J
C. 393 J
D. 392 J
Correct Answer: D
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 10 kg object raised 15 m is:
A. 1471 J
B. 1472 J
C. 1470 J
D. 1469 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 10 kg object raised 10 m is:
A. 979 J
B. 982 J
C. 981 J
D. 980 J
Correct Answer: D
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 10 kg object raised 5 m is:
A. 492 J
B. 491 J
C. 489 J
D. 490 J
Correct Answer: D
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 10 kg object raised 2 m is:
A. 198 J
B. 195 J
C. 196 J
D. 197 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 5 kg object raised 15 m is:
A. 737 J
B. 735 J
C. 736 J
D. 734 J
Correct Answer: B
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 5 kg object raised 10 m is:
A. 491 J
B. 490 J
C. 492 J
D. 489 J
Correct Answer: B
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 5 kg object raised 5 m is:
A. 246 J
B. 247 J
C. 245 J
D. 244 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 5 kg object raised 2 m is:
A. 97 J
B. 100 J
C. 99 J
D. 98 J
Correct Answer: D
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 2 kg object raised 15 m is:
A. 296 J
B. 295 J
C. 294 J
D. 293 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 2 kg object raised 10 m is:
A. 195 J
B. 197 J
C. 196 J
D. 198 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 2 kg object raised 5 m is:
A. 99 J
B. 98 J
C. 100 J
D. 97 J
Correct Answer: B
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
Using g = 9.8 m/s², potential energy gained by a 2 kg object raised 2 m is:
A. 35.3 J
B. 40.2 J
C. 39.2 J
D. 43.1 J
Correct Answer: C
PE = mgh.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
What is the kinetic energy of a 10 kg body moving at 10 m/s?
A. 502 J
B. 501 J
C. 499 J
D. 500 J
Correct Answer: D
KE = ½mv².
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
What is the kinetic energy of a 10 kg body moving at 8 m/s?
A. 321 J
B. 319 J
C. 322 J
D. 320 J
Correct Answer: D
KE = ½mv².
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
What is the kinetic energy of a 10 kg body moving at 6 m/s?
A. 179 J
B. 182 J
C. 180 J
D. 181 J
Correct Answer: C
KE = ½mv².
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
What is the kinetic energy of a 10 kg body moving at 4 m/s?
A. 79 J
B. 80 J
C. 81 J
D. 82 J
Correct Answer: B
KE = ½mv².
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
What is the kinetic energy of a 10 kg body moving at 2 m/s?
A. 21 J
B. 19 J
C. 22 J
D. 20 J
Correct Answer: D
KE = ½mv².