LET REVIEWER: GENERAL EDUCATION - SCIENCE - RE 1

Reviewer - Biological and Physical Science 1

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Answer the questions first before looking up the correct answers so that you will learn from your mistakes and will never repeat the same mistakes in the actual LET.

Select the best answer. Write E if there is no correct answer on the list.

1. The first satellite was put in space by this country in 1957.

A. United States

B. Korea

C. Russia

D. China

2. The rate of a chemical reaction depends on all of the following except

A. surface area

B. temperature

C. presence of catalysts

D. amount of mass lost

3. For a given mass and constant temperature, an inverse relationship exists between the volume and pressure of a gas. This refers to

A. Boyle’s Law

B. Ideal Gas Law

C. Charles’ Law

D. Stefan-Boltzmann Law

4. Which of the following is exchanged between two or more atoms that undergo ionic bonding?

A. transitory electrons

B. valence electrons

C. electrical charges

D. neutron

5. Most metals exhibit all but one of the statements.

A. They are gases at room temperature.

B. They are ductile.

C. They make up the majority of elements on the periodic table.

D. They are good conductors of heat.

6. The pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions (H+) is most likely

A. 2

B. 9

C. 7

D. 6

7. The following are found on the periodic table except

A. chlorine

B. bromine

C. magnesium oxide

D. phosphorous

8. Nora makes soup by adding some spices to a pot of boiling water and stirring until completely dissolved. Next, she adds several chopped vegetables. What is the solute in her mixture?

A. spices

B. vegetables

C. water

D. heat

9. The greatest potential energy of a cyclist riding over a hill is ____.

A. at the base of the hill.

B. at the very top of the hill.

C. halfway up the hill.

D. on the way down the hill.

10. If “L” represents tallness and “I” represents shortness, the following correctly describes the trait LI

A. homozygous phenotype and short genotype

B. heterozygous phenotype and tall genotype

C. homozygous genotype and short phenotype

D. heterozygous genotype and tall phenotype

11. Which of the following waves is a type of electromagnetic wave?

A. ocean wave

B. sound wave

C. gamma wave

D. transverse wave

12. This law describes the electric force between two charged particles.

A. Ohm’s law

B. Coulomb’s law

C. Kirchhoff’s current law

D. The Doppler effect

13. Thermal energy is transferred through matter directly from particle to particle by this process.

A. insulation

B. conduction

C. radiation

D. convection

14. The least amount of kinetic energy is found in this state of matter.

A. solid

B. liquid

C. gas

D. plasma

15. The following statements are not correct but one.

A. Mass is the quantity of matter an object has.

B. Mass equals half the weight of an object.

C. Mass and weight are the same thing.

D. Mass equals twice the weight of an object.

ANSWERS:

1-C 2-D 3-A 4-B 5-A 6-B 7-C 8-A 9-B 10-D 11-C 12-B 13-B 14-A 15-A

If you think that there is a wrong answer above, please comment.

Source: https://www.mometrix.com/academy/ged-test/