Physics Quiz: Speed And Acceleration Practice Test!

20 Questions | By Jcorder | Last updated: Mar 22, 2022 | Total Attempts: 532

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Physics Quiz: Speed And Acceleration Practice Test! - Quiz

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1.

A bolt falls off an airplane high above the ground. How far does the bolt have to fall before its speed reaches 100 m/sec (about 200 miles per hour)? You should ignore air friction in your calculation. (HINT: Calculate time, then calculate distance). You can work this on a piece of paper and turn it in with the test
2.

A car goes from 30 miles per hour (mph) to 60 mph in six seconds. The acceleration of the car is:
- A.
  
  5 mph per second.
- B.
  
  6 mph per second.
- C.
  
  30 mph per second.
- D.
  
  180 mph per second.
3.

The graph below represents the speed of a car vs. time. Figure 4-1 Which point on the speed versus time graph in Figure 4-1 has the highest acceleration?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
4.

A rocket has an acceleration of 50 m/sec2. How long does it take the rocket to reach a speed of 1,000 m/sec?
- A.
  
  .05 seconds
- B.
  
  20 seconds
- C.
  
  50 seconds
- D.
  
  50,000 seconds
5.

A sports car reaches a speed of 50 m/sec in 12 seconds after starting from rest. The acceleration of the car is:
- A.
  
  0.24 m/sec^2
- B.
  
  4.17 m/sec^2
- C.
  
  38 m/sec^2
- D.
  
  50 m/sec^2
6.

The graph below represents the motion of an object. Figure 4-2 Between two and three seconds, the speed of the object shown in Figure 4-2:
- A.
  
  Is approximately 1.33 m/sec
- B.
  
  Is approximately 3 m/sec
- C.
  
  Increases from 1 m/sec to 4 m/sec
- D.
  
  Increases from rest to 4 m/sec
7.

Which of the following statements CANNOT ever be true?
- A.
  
  An object can have a speed of zero and an acceleration that is not zero.
- B.
  
  An object can have an acceleration of zero and a speed that is not zero.
- C.
  
  An object can have a speed that is changing and still have zero acceleration.
- D.
  
  An object can have a speed that is decreasing and still have acceleration.\x00
8.

In the equation , the variable x0 represents:
- A.
  
  The position at time t = 0.
- B.
  
  The distance moved in the first second of motion.
- C.
  
  The speed at time t = 0.
- D.
  
  The position when the speed (v) equals zero.
9.

The graph below represents the motion of a moving object. Figure 4-3 The initial speed (v0) shown in Figure 4-3 is:
- A.
  
  0.0 m/sec.
- B.
  
  0.2 m/sec.
- C.
  
  0.4 m/sec.
- D.
  
  2.0 m/sec.
10.

A car is traveling at 30 m/sec in a straight line. The driver applies the brakes for 3 seconds, and the car slows down to 12 m/sec. The acceleration of the car is:
- A.
  
  -3 m/sec^2
- B.
  
  -4 m/sec^2
- C.
  
  -6 m/sec^2
- D.
  
  -10 m/sec^2
11.

If the speed is constant, which variable is zero in the equation ?
- A.
  
  X0
- B.
  
  V0
- C.
  
  A
- D.
  
  T
12.

An object falls for 2 seconds after being dropped from rest. Its speed is approximately:
- A.
  
  2 m/sec
- B.
  
  4.9 m/sec
- C.
  
  9.8 m/sec
- D.
  
  19.6 m/sec
13.

A object is thrown straight upwards with a speed of 19.6 m/sec. Three seconds later, its speed is:
- A.
  
  Zero
- B.
  
  9.8 m/sec downward
- C.
  
  49 m/sec upward
- D.
  
  29.4 m/sec downward
14.

The acceleration of gravity on the moon is about 1.6 m/sec2. A 2-kilogram object on the moon is dropped from rest. After ten seconds, the speed of the object is:
- A.
  
  1.6 m/sec
- B.
  
  3.2 m/sec
- C.
  
  16 m/sec
- D.
  
  32 m/sec
15.

In physics, the term free fall means:
- A.
  
  No forces act on the object except gravity.
- B.
  
  The speed of a falling object remains constant.
- C.
  
  The object is dropped from an initial speed of zero.
- D.
  
  The object is dropped straight down.
16.

The acceleration of gravity on the moon is about 1.6 m/sec2. An experiment to test gravity compares the time it takes objects to reach a speed of 10 m/sec after being dropped from rest. How long does an object dropped on the moon have to fall compared to an object dropped on Earth?
- A.
  
  1.6 times as long
- B.
  
  6.1 times as long
- C.
  
  9.8 times as long
- D.
  
  15.7 times as long
17.

The acceleration of gravity expressed in English units is: a. 9.8 ft/min2. b. 32.2 ft/sec2. c. 9.8 ft/sec2. d. 3.0 ft/sec2.
- A.
  
  9.8 ft/min^2
- B.
  
  32.2 ft/sec^2
- C.
  
  9.8 ft/sec^2
- D.
  
  3.0 ft/sec^2
18.

A clever person who knows physics measures the depth of a deep hole by dropping a rock into the hole. The rock takes 3.2 seconds to hit the bottom. The depth of the hole is approximately:
- A.
  
  16 meters
- B.
  
  31 meters
- C.
  
  50 meters
- D.
  
  100 meters
19.

An arrow is shot straight up into the air at a speed of 98 m/sec. What is the maximum height reached by the arrow? You may neglect air friction.
- A.
  
  98 meters
- B.
  
  490 meters
- C.
  
  980 meters
- D.
  
  1,470 meters
20.

A stone is dropped from the roof of a tall building. A person measures the speed of the stone to be 49 m/sec when it hits the ground. The height of the building is closest to:
- A.
  
  24 meters
- B.
  
  49 meters
- C.
  
  122 meters
- D.
  
  245 meters