CSS - PMS - CCE - PCS - Everyday Science
Mechanics
An object moves in a circle at 5 m/s with radius 5 m. Centripetal acceleration is:
A. 5 m/s²
B. 6 m/s²
C. 7 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 5 m/s with radius 2 m. Centripetal acceleration is:
A. 12.5 m/s²
B. 13.8 m/s²
C. 13.5 m/s²
D. 11.2 m/s²
Correct Answer: A
a = v²/r.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 1000 N acts on 4 m². Pressure is:
A. 251 Pa
B. 249 Pa
C. 250 Pa
D. 252 Pa
Correct Answer: C
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 1000 N acts on 2 m². Pressure is:
A. 501 Pa
B. 499 Pa
C. 500 Pa
D. 502 Pa
Correct Answer: C
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 1000 N acts on 1 m². Pressure is:
A. 1002 Pa
B. 1000 Pa
C. 1001 Pa
D. 999 Pa
Correct Answer: B
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 1000 N acts on 0.5 m². Pressure is:
A. 2002 Pa
B. 1999 Pa
C. 2001 Pa
D. 2000 Pa
Correct Answer: D
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 500 N acts on 4 m². Pressure is:
A. 126 Pa
B. 127 Pa
C. 125 Pa
D. 124 Pa
Correct Answer: C
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 500 N acts on 2 m². Pressure is:
A. 251 Pa
B. 252 Pa
C. 249 Pa
D. 250 Pa
Correct Answer: D
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 500 N acts on 1 m². Pressure is:
A. 501 Pa
B. 502 Pa
C. 499 Pa
D. 500 Pa
Correct Answer: D
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 500 N acts on 0.5 m². Pressure is:
A. 1002 Pa
B. 1001 Pa
C. 1000 Pa
D. 999 Pa
Correct Answer: C
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 200 N acts on 4 m². Pressure is:
A. 50 Pa
B. 51 Pa
C. 49 Pa
D. 52 Pa
Correct Answer: A
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 200 N acts on 2 m². Pressure is:
A. 100 Pa
B. 101 Pa
C. 99 Pa
D. 102 Pa
Correct Answer: A
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 200 N acts on 1 m². Pressure is:
A. 199 Pa
B. 201 Pa
C. 202 Pa
D. 200 Pa
Correct Answer: D
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 200 N acts on 0.5 m². Pressure is:
A. 402 Pa
B. 401 Pa
C. 400 Pa
D. 399 Pa
Correct Answer: C
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 100 N acts on 4 m². Pressure is:
A. 27 Pa
B. 26 Pa
C. 24 Pa
D. 25 Pa
Correct Answer: D
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 100 N acts on 2 m². Pressure is:
A. 52 Pa
B. 50 Pa
C. 51 Pa
D. 49 Pa
Correct Answer: B
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 100 N acts on 1 m². Pressure is:
A. 101 Pa
B. 99 Pa
C. 100 Pa
D. 102 Pa
Correct Answer: C
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A normal force of 100 N acts on 0.5 m². Pressure is:
A. 200 Pa
B. 202 Pa
C. 201 Pa
D. 199 Pa
Correct Answer: A
P = F/A.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A material has mass 1000 kg and volume 1 m³. Density is:
A. 1001 kg/m³
B. 1002 kg/m³
C. 999 kg/m³
D. 1000 kg/m³
Correct Answer: D
ρ = m/V.
CSS - PMS - CCE - PCS - Everyday Science
Mechanics
A material has mass 1000 kg and volume 0.5 m³. Density is:
A. 2002 kg/m³
B. 2001 kg/m³
C. 2000 kg/m³
D. 1999 kg/m³
Correct Answer: C
ρ = m/V.