# P.O.E. Warm-up Quiz #3

10 Questions | Total Attempts: 79  Settings  Sept. 10 - Sept 14

• 1.
Which of the following is a inexhaustable energy source?
• A.

Wind

• B.

Wood

• C.

Coal

• D.

Oil

• 2.
Which process powers nuclear submarines?
• A.

Nuclear fission

• B.

Nuclear fusion

• C.

Geothermal inversion

• D.

Cosmic implosion

• 3.
A net force of 18 N is exerted on an encyclopedia to cause it to accelerate at a rate of 4 m/s2. Determine the mass of the encyclopedia.
• A.

4.5 kg

• B.

72 kg

• C.

4.5 lbs

• D.

.222 lbs

• 4.
Determine the kinetic energy of a 755-kg roller coaster car that is moving with a speed of 17.6 m/s.
• A.

116,934 J

• B.

42.90 J

• C.

13,288 J

• D.

2757 J

• 5.
Suppose that a skateboard is accelerating at a rate of 1.5 m/s2. If the net force is 175 N, what is the mass of the baord and the passenger?
• A.

116.7 Kg

• B.

262.5 Kg

• C.

78.8 Kg

• D.

157.6 Kg

• 6.
A 0.45 kg ball is placed at the top of a hill. How much potential energy does the ball have if the hill has an altitude of 7 meters?
• A.

30.9 J

• B.

3.15 J

• C.

22.1 J

• D.

1.58 J

• 7.
Calculate the voltage difference in a circuit with a resistance of 18 Ω if the current in the circuit is 0.8 A.
• A.

14.4 v

• B.

22.5 v

• C.

0.044 v

• D.

17.2 v

• 8.
How much work is done on a cart if a 330 N force is exerted to move it 23.5 m to the east?
• A.

7755 J

• B.

14.04 J

• C.

0.071 J

• D.

76,077 J

• 9.
A horse performs 12000 joules of work pulling a wagon for 27 seconds. What is the horse's power?
• A.

444.44 watts

• B.

324000 watts

• C.

11973 watts

• D.

12027 watts

• 10.
An appliance with a resistance of 225 Ω is connected to a 120-v power supply.  How much current flows in the appliance?
• A.

0.53 amps

• B.

1.875 amps

• C.

345 amps

• D.

105 amps Back to top