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GED Science Diagnostic Practice Test

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Question 1 of 20

1. Question
In the below chart, which of the following statements is true regarding the positive velocity gained during the acceleration period?
- a. The sprinter had the same velocity at second two than at second 8.
- b. The sprinter increased velocity at an average of 2 meters per second.
- c. The sprinter’s velocity at second 4 was only 2 meters per second.
- d. The sprinter’s velocity increased disproportionately each second.
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Question 2 of 20

2. Question
According to the below chart, which of the following inferences can be made?
- a. Matter with particles that are far apart can be compressed.
- b. Matter with particles that are far apart can conduct electricity.
- c. Matter with particles that are far apart have a lower amount of movement.
- d. All of the above.
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Question 3 of 20

3. Question
The following chart lists the characteristics of metals and nonmetals. What properties of metals would contribute to them being a good option for electrical uses?
- a. They are good conductors, have a high melting point and are ductile.
- b. They are good conductors, are opaque and lustrous.
- c. They are transparent and sonorous.
- d. All of the above.
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Question 4 of 20

4. Question
In a bike race, the racers achieved the following times related to their distance. Each racer could opt to complete the full distance, a half distance, or a quarter distance.

Racer Distance (m) Time (s)

1 1600 142

2 1600 160

3 3200 330

4 3200 400

5 3200 386

6 6400 610

7 6400 625

Which racer had the highest velocity?
- a. Racer 1
- b. Racer 4
- c. Racer 6
- d. Racer 7
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Question 5 of 20

5. Question
The following chart indicates the different boiling points of several different organic compounds.

Which of the following statements is true?
- a. Group 16 has the lowest average boiling point.
- b. Compounds H2S and SIH4 have a similar boiling point.
- c. Group 14 is most like Group 16 in terms of boiling points.
- d. Compounds PH3 and HCl have a similar boiling point.
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Question 6 of 20

6. Question
Which of the following is found in all states of matter at room temperature?
- a. Metals
- b. Nonmetals
- c. Neither
- d. Both
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Question 7 of 20

7. Question
The following cladogram illustrates the evolutionary relationships and similarities of different species. Based upon this information, which of the following statements is true?
- a. All of the organisms evolved to have an amniotic egg.
- b. The caiman is more similar to parrots than frogs.
- c. Humans are more similar to sharks than hares.
- d. All of the above.
Correct

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Question 8 of 20

8. Question
The following chart shows the usage rate of biofuels in 2017 in million tons of oil equivalent (Mtoe). Based upon this data, how much of the total biofuel use is done by natural gas vehicles (NGV)?
- a. 0.16%
- b. 1.6%
- c. 2.1%
- d. 6.1%
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Question 9 of 20

9. Question
In the following ecosystem, a dramatic increase in the red winged blackbird population could lead to a corresponding decrease in what other species populations?
- a. Beetles and Insects
- b. Spiders and willow
- c. Insects and spiders
- d. Spiders and beetles
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Question 10 of 20

10. Question
Based upon the following table concerning data about the different atmospheric layers, which of the following statements is true?
- a. The exosphere is the thinnest atmospheric layer.
- b. Nitrogen is primarily abundant in the troposphere.
- c. Ambient conditions grow warmer as you move away from the surface of the Earth.
- d. All of the above.
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Question 11 of 20

11. Question
The following diagram represents the electromagnetic spectrum, which displays the range of energy from low energy, low-frequency waves to high energy, high-frequency waves in nanometers, and Hertz.

Which of the following statements is true?
- a. As the wave frequency increase, humans are better able to see the waves.
- b. As energy increases, Hertz values decrease.
- c. The color blue has a higher Hertz value than the color red.
- d. All of the above.
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Question 12 of 20

12. Question
In the below chart, what is the mean time for completing 1600 meters including all racers?

Racer Distance (m) Time (s)

1 1600 142

2 1600 160

3 3200 330

4 3200 400

5 3200 386

6 6400 610

7 6400 625
- a. 160.27
- b. 157.93
- c. 169.34
- d. 166.96
Correct

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Question 13 of 20

13. Question
Which two compounds on the chart reflect the most extreme difference in boiling points?
- a. H2O and CH4
- b. HF and H2O
- c. CH4 and SnH4
- d. PH3 and HCl
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Question 14 of 20

14. Question
According to the chart, which of the following statements is true?
- a. Gasoline use is decreasing.
- b. Electricity using alternative fuel sources is increasing.
- c. Approximately the same amount of energy is consumed by alternative fuels as diesel.
- d. None of the above.
Correct

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Question 15 of 20

15. Question
In the below ecosystem, which of the following events would have an impact on every single species?
- a. A drought leading to very little or no willow growth.
- b. The spread of a disease exclusive to frogs.
- c. The spread of a disease exclusive to frogs.
- d. All of the above.
Correct

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Question 16 of 20

16. Question
According to the following body mass index (BMI) chart, which of the following statements is accurate?
- a. A 5-foot-tall individual weighing 205 lbs. would be considered extremely obese.
- b. Shorter people are more likely to have higher BMIs.
- c. Tall people are often underweight.
- d. All of the above.
Correct

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Question 17 of 20

17. Question
Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. The more massive an object is, the stronger its gravitational pull is. Earth’s gravity is what keeps you on the ground and what causes objects to fall. Gravity is what holds the planets in orbit around the Sun and what keeps the Moon in orbit around Earth. The closer you are to an object, the stronger its gravitational pull is. Gravity is what gives you weight. It is the force that pulls on all of the mass in your body.

As objects move away from the Earth, what gravitational change occurs and how does it impact the weight of an object?
- a. Gravitational pull would become stronger, and weight would increase.
- b. Gravitational pull would become stronger and weight would decrease.
- c. Gravitational pull would become weaker and weight would increase.
- d. Gravitational pull would become weaker and weight would decrease.
Correct

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Question 18 of 20

18. Question
The following chart displays information about the planets in the solar system, based upon this, which of the following is true?
- a. Venus rotates far more slowly than Earth.
- b. Venus’s year is longer than Earth’s.
- c. Mercury is approximately twice the size of Earth.
- d. All of the above.
Correct

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Question 19 of 20

19. Question
In the below study, which variable would be considered the independent variable in the study’s design?

Group Dosage Results

Group A 20 mg daily No change

Group B 50 mg daily -2.64 (avg.)

Group C 100 mg daily -5.21 (avg.)
- a. The groups
- b. The dosage
- c. The time at which the medication was administered
- d. Each of these could be considered the independent variable.
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Question 20 of 20

20. Question
Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a “free ride.”

Which of the following examples demonstrates a symbiotic relationship of commensalism?
- a. Hermit crabs using dead snail shells for their homes.
- b. Oxpeckers who eat parasites from zebras.
- c. Fleas that reside on wolves.
- d. All of the above.
Correct

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