Mixtures/Atoms
States of Matter/Radiation
Current
Reactions/Acids
Misc.
100
The chemical symbol for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid? A. 3 B. 5 C. 6 D. 7
D
100
Which state of matter has a definite volume, but not shape? A. plasma B. gas C. liquid D. solid
C. liquid
100
Semiconductors are elements that A. have large atomic masses but small atomic numbers. B. do not form compounds. C. can conduct heat and electricity under certain conditions. D. are extremely hard.
C. can conduct heat and electricity under certain conditions.
100
Of the following, the greatest gravitational force would occur between A. a marble and a baseball 5 meters apart. B. a loaded freighter on the high seas and Earth. C. the moon and an astronaut standing on the moon. D. the moon and Earth.
D. the moon and Earth.
100
When the velocity of an object changes, it is acted upon by a(n) A. force. B. inertia. C. momentum. D. deceleration.
A. force.
200
A mixture is different from a compound because each substance in a mixture A. retains its own properties. B. changes its electric charge. C. forms an ion. D. changes from a solid to a liquid.
A. retains its own properties.
200
Gases take up a lot of space because A. they have weak chemical bonds. B. their molecules have very little attraction for one another. C. they contain very few atoms. D. they have a small molar mass
B. their molecules have very little attraction for one another.
200
What is the gravitational potential energy of a 55 kg box that is 8.0 m above the ground? (PE = mgh) A. 5500 J B. 3400 J C. 4300 J D. 550 J
C. 4300 J
200
In an exothermic reaction, energy is transferred from A. the reactants to the surroundings. B. the surroundings to the reactants. C. one reactant to another. D. the container to the chemicals.
A. the reactants to the surroundings.
200
A boy pushes on a parked car with a force of 200 N. The car does not move. How much work does the boy do on the car? Work (W) = Force (N) x distance (m) A. 200 N B. 200 J C. zero D. can’t be determined
C. zero
300
An atom’s mass number equals the number of A. protons plus the number of electrons. B. protons plus the number of neutrons. C. protons. D. neutrons.
B. protons plus the number of neutrons.
300
The process of nuclear change in an atom of radioactive material is called A. nuclear decay. B. isotopes. C. nuclear mass. D. radon.
A. nuclear decay.
300
There is a potential difference of 12 V across a resistor with 0.25 A of current in it. The resistance of the resistor is [Voltage (V) = Current (I) x Resistance (R)] A. 48 Ohms B. 24 Ohms C. 12 Ohms D. 0.021 Ohms
A. 48 Ohms
300
A substance that speeds up a chemical reaction without undergoing a permanent change itself is a(n) ____ A. inhibitor. B. coefficient. C. reactant. D. catalyst.
D. catalyst.
300
Which of the following is an example of mechanical energy? A. nuclear energy B. chemical energy C. potential energy D. light energy
C. potential energy
400
What is an Ion? A. Atom with different number of Protons B. Atom with different number of Neutrons C. Atom with different number of Electons
B. Atom with different number of Neutrons
400
In radioactive decay, with each successive half-life, half the remaining sample decays to form another A. neutron. B. element. C. life-form. D. proton.
B. element.
400
A pendulum is swinging back and forth and has a kinetic energy of 400 J at a particular point in its path. Which of the following statements is not true? A. Both the kinetic and potential energy are decreasing. B. The minimum kinetic energy is zero. C. When the kinetic energy is zero, the potential energy will be 400 J greater. D. The potential energy increases when the kinetic energy decreases.
A. Both the kinetic and potential energy are decreasing.
400
The label on a bottle indicates that the substance inside has a pH of 13. This tells you that the substance is A. neutral. B. strongly acidic. C. mildly basic. D. strongly basic.
D. strongly basic.
400
Which method of energy transfer does not involve movement of matter? A. convection B. conduction C. radiation D. a and b above
C. radiation
500
Alkaline metals has how many valence electrons? A. 4 B. 5 C. 2 D. 1
C. 2
500
Going from a gas to a solid is called? A. Sublimation B. Condensation C. Deposition D. Evaporation
C. Deposition
500
Which type of electromagnetic waves has slightly longer wavelengths than red light? A. yellow light B. infrared light C. ultraviolet light D. green light
B. infrared light
500
A solution that is mildly acidic would have a pH of approximately
A. 2. B. 4. C. 6. D. 8.
500
Scientists test a hypothesis by A. formulating questions. B. designing models. C. doing experiments. D. drawing conclusions
C. doing experiments.
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