Ged Social Studies Practice 5 - online test

Which country put the first satellite in space, in 1957?

Russia

United States

Germany

Korea

Germany developed rocket technology and the United States put a man on the moon in 1969

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

temperature.

surface area.

presence of catalysts.

amount of mass lost.

The rate at which a chemical reaction occurs does not depend on the amount of mass lost, since the law of conservation of mass (or matter) states that in a chemical reaction there is no loss of mass.

Which of the answer choices provided best defines the following statement?
For a given mass and constant temperature, an inverse relationship exists between the volume and pressure of a gas?

Ideal Gas Law

Boyle's Law

Charles' Law

Stefan-Boltzmann Law

Boyle's law states that for a constant mass and temperature, pressure and volume are related inversely to one another: PV = c, where c = constant.

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

neutrons

transitory electrons

valence electrons

electrical charges

An ionic bond forms when one atom donates an electron from its outer shell, called a valence electron, to another atom to form two oppositely charged atoms.

Which of the following statements is not true of most metals?

They are good conductors of heat.

They are gases at room temperature.

They are ductile.

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

Metals are usually solids at room temperature, while nonmetals are usually gases at room temperature.

What is most likely the pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions (H+)?

2

6

7

9

A solution that contains more hydroxide ions than hydrogen ions is a base, and bases have a pH greater than 7, so the only possible answer is 9.

Which of the following cannot be found on the periodic table?

bromine

magnesium oxide

phosphorous

chlorine

Magnesium oxide cannot be found on the periodic table because it is a compound of two elements.

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

wate

vegetables

spices

heat

A solute is a substance that is dissolved in another substance. In this case, the solute is the spices

A cyclist is riding over a hill.
At what point is his potential energy greatest?

at the base of the hill

halfway up the hill

at the very top of the hill

on the way down the hill

Potential energy is stored energy. At the top of the hill, the cyclist has the greatest amount of potential energy (and the least amount of kinetic energy) because his motion is decreased and he has the potential of motion in any direction.

Which of the following correctly describes the trait Ll, if "L" represents tallness and "l" represents shortness?

heterozygous genotype and tall phenotype

heterozygous phenotype and tall genotype

homozygous genotype and short phenotype

homozygous phenotype and short genotype

The trait Ll describes the genotype of the person or the traits for the genes they carry. It is heterozygous because it contains a dominant gene and a recessive gene. Tallness is the phenotype of the person or the physical expression of the genes they carry, because L for tallness is the dominant gene.

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

ocean wave

sound wave

transverse wave

gamma wave

Gamma waves are the smallest wavelengths of the electromagnetic spectrum

What law describes the electric force between two charged particles?

Ohm's law

Coulomb's law

The Doppler effect

Kirchhoff's current law

Coulomb's law describes the electric force between two charged particles. It states that like charges repel and opposite charges attract, and the greater their distance, the less force they will exert on each other.

What process transfers thermal energy through matter directly from particle to particle?

convection

radiation

conduction

insulation

Conduction is the transfer of thermal energy between two substances that come into contact with each other; their particles must collide in order to transfer energy.

Which state of matter contains the least amount of kinetic energy?

solid

liquid

gas

plasma

Solids contain the least amount of kinetic energy because they are made up of closely packed atoms or molecules that are locked in position and exhibit very little movement. Gases and plasmas exhibit the greatest amount of energy.

Which of the following is true?

Mass and weight are the same thing

Mass is the quantity of matter an object has

Mass equals twice the weight of an object

Mass equals half the weight of an object

Mass is not the same as weight; rather, mass is the quantity of matter an object has.