Physics Practice Test
1. Which physical quantity is scalar in nature?
A. 3:42 PM
B. 23 m/sec; east
C. 723 Nm; 216 degrees
D. 34 km/sec; sin (120 degre

... [Show More] es)
2. A bicycle trip of 680 m takes 12.6 seconds. What is the average speed of the bicycle?
A. 53.97 m/sec
B. 8,568 m/sec
C. 0.054 km/min
D. 8.57 m/sec
3. A go-cart has an initial speed of 23.4 m/sec. Fifteen seconds later the go-cart has a final speed of 46.8 m/sec. What is the magnitude of the go-cart’s acceleration?
A. 702 m/sec2
B. 1.56 m/sec2
C. 362.7 m/sec2
D. 2.56 m/sec2
4. You walk for 15 minutes at 3.8 m/sec and then decide to run for 12 minutes at 2.5 m/sec. What is your average speed?
A. 3.22 m/sec
B. 3.15 m/sec
C. 13.5 m/sec
D. 1.125 m/sec
5. A cannon is placed on the edge of a cliff that is 300 m tall. The barrel of the cannon is parallel to the ground below. If a cannonball leaves the barrel in a horizontal direction with a velocity of 115 m/sec, how far out from the base of the cliff will the cannonball land?
A. 450.0 m
B. 630.0 m
C. 900.0 m
D. 7,040.3 m
6. An object has a mass of 1,285 g. Determine the weight of the object in newtons.
A. 12,593 N
B. 125.93 N
C. 12.59 N
D. 1,259.3 N
7. A car that weighs 15,000 N is initially moving at 60 km/hr when the brakes are applied. The car is brought to a stop in 30 m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force.
A. 7,086.7 N
B. 900,000 N
C. 1,500,000 N
D. 30,000 N
8. A hockey puck of mass 0.450 kg is sliding across the ice. The puck is initially moving at 28 m/sec. However, because of the frictional force between the puck and the ice, the motion of the puck is stopped in
15.8 seconds. Determine the magnitude of the frictional force.
A. 1.65 N
B. 7.81 N
C. 0.80 N
D. 5.49 N
9. A race car has an initial velocity of 200 m/sec and over 4 seconds its velocity increases to 1200 m/sec. What is its acceleration?
A. 100 m/sec2
B. 150 m/sec2
C. 200 m/sec2
D. 250 m/sec2
10. What is the kinetic energy of a 1,200-kg roadster moving at a rate of 88 km/hr?
A. 9,292,800 J
B. 105,600 J
C. 358,519 J
D. 52,800 J
11. An archer exerts a force of 15 N to pull back the bowstring 15 cm as she prepares to shoot an arrow. How much kinetic energy will be imparted to the arrow as a result of the work done?
A. 225 J
B. 112.5 J
C. 2.25 J
D. 1.125 J
12. A book with a mass of 0.95 kg is held 2.3 m above the ground. Determine the gravitational potential energy of the book.
A. 21.41 J
B. 10.71 J
C. 29.8 J
D. 69.92 J
13. A 1,250-kg truck has a velocity of 28 m/sec to the east. What is the momentum of the truck?
A. 17,500 kg-m/sec; east
B. 35,000 kg-m/sec; west
C. 35,000 kg-m/sec; east
D. 17,500 kg-m/sec; west
14. A car of mass 1,350 kg experiences a force of 1500 N for 20 seconds. Determine the change in magnitude of the car’s momentum.
A. 15,000 N-sec
B. 30,000 kg-m/sec
C. 227,000 N-sec
D. 101,250 kg-m/sec
15. A pendulum makes 12 vibrations every 60 seconds. What is the frequency of the pendulum?
A. 5 Hz
B. 0.083333 Hz
C. 0.2 Hz
D. 10 Hz
16. Three resistors are placed in series. The resistors have values of 110 ohms, 45 ohms, and 60 ohms. Determine the value of the voltage needed to provide a current of 2 amp to this set of series resistors.
A. 430 V
B. 220 V
C. 210 V
D. 107.5 V
17. Electric fields are vector quantities because they are completely described by both magnitude and direction. According to scientific convention, the direction of an electric field is which of the following?
A. Away from a positive charge.
B. Toward a positive charge.
C. The direction a negative test charge would move when placed in an electric field.
D. Away from a negative charge.
18. When a concave mirror is used, where would an enlarged, virtual image be formed?
A. At the focal point of the mirror
B. Between the focal point and the mirror
C. Behind the mirror
D. At the center of curvature of the mirror
19. A certain ocean wave has a frequency of 0.05 Hz and a wavelength of 10 m. What is the wave’s speed?
A. 0.5 m/sec
B. 200 m/sec
C. 0.005 m/sec
D. 100 m/sec
20. Sound is an example of .
A. a longitudinal wave
B. a transverse wave
C. a standing wave
D. a Doppler wave
21. An object has a weight of 6,000 N when resting on the surface of the Earth. When located at a distance that is 3.2 × 107 m from the center of the Earth, what is the new weight of the object? Remember that the radius of the Earth is 6.4 × 106 m and the mass of the Earth is 6 × 1024 kg.
A. 120 N
B. 240 N
C. 30,000 N
D. 150,000 N
22. Which of the following must be known to calculate average speed?
A. Distance and direction only
B. Direction and velocity only
C. Velocity and time only
D. Distance and time
23. When calculating projectile motion, the horizontal motion is a function of which of the following?
A. Distance and direction only
B. Direction and velocity only
C. Velocity and time only
D. Distance and time
24. Which of the following values represents a balance force?
A. 30 N east and 27 N west
B. 500 N left and 500 N right
C. 25 N up and 20 N down
D. 1000 N north and 1200 N south
25. The upward force of air on an object is 30 N, and the downward force of gravity on the same object is 20
N. What is the net force?
A. 10 N
B. 50 N
C. 1.5 N
D. 0 N
26. What is the force necessary to move a 12-kg box at a rate of 10 m/sec2?
A. 12 N
B. 10 N
C. 200 N
D. 120 N
27. Which of the following is an example of an electromagnetic wave?
A. Radiowave
B. Water wave
C. Seismic wave
D. Sound wave
28. A wave has a frequency of 15 Hz and a speed of 20 m/sec. What is its wavelength?
A. 0.2 m
B. 1.0 m
C. 1.3 m
D. 2.2 m
29. What is the speed of a wave with a frequency of 30 Hz and a wavelength of 0.7 m?
A. 15 m/sec
B. 21 m/sec
C. 27 m/sec
D. 32 m/sec
30. As a light wave enters a slower medium, what happens in terms of refraction related to normal?
A. No change with regards to refraction.
B. It will refract away from normal.
C. It will refract toward normal.
D. Light will not pass into a slower medium.
31. Which energy shell of an atom exhibits the greatest binding energy?
A. K
B. L
C. M
D. N
32. If an atom contains 14 protons in its nucleus, how many electrons must it contain to be stable?
A. 11
B. 12
C. 13
D. 14
33. What is the voltage in a circuit with a resistance of 2 ohms and a current of 55 amperes? A. 27.5 V
B. 110 V
C. 53 V
D. 57 V
34. What is the resistance in a circuit with a current of 15 amperes and a voltage of 440 V?
A. 455 ohms
B. 425 ohms
C. 29.3 ohms
D. 6600 ohms
35. Pairs of magnets are placed in proximity to each other as below. Which pair will experience the greatest force of attraction?
A. 0.5 T (north end) 1 meter from 0.5 T (north end)
B. 2.5 T (south end) 1 meter from 0.5 T (south end)
C. 2.5 T (south end) 1 meter from 0.5 T (north end)
D. 2.5 T (north end) 1 meter from 2.5 T (south end) [Show Less]