Physical Science Test 1 Question Preview (ID: 35126)


1st Test. TEACHERS: click here for quick copy question ID numbers.

What happens to the number of energy levels as you travel from the top to bottom in a group on the periodic table?
a) The number of energy levels increases.
b) The number of energy levels decreases.
c) The number of energy levels stays the same
d) The number of energy levels is random as you go down a group.

Materials that prevent heat flow are
a) Usually metals
b) Conductors
c) Insulators
d) Radiators

Which of the following is NOT an example of an electromagnetic wave?
a) Sound waves
b) Radio waves
c) Ultraviolet waves
d) Gamma rays

Potassium is an element in group 1 and period 4. How many valence electrons does an atom of potassium contain?
a) 1
b) 2
c) 3
d) 4

What phase change occurs when a solid changes directly into a gas?
a) Freezing
b) Melting
c) Evaporation
d) Sublimation

What type of arrangement and motion do particles in a liquid have?
a) Particles in liquid are closely packed together and vibrating.
b) Particles in liquid are not in contact with each other and are moving very quickly.
c) Particles in liquid are in contact with each other, but they are able to slip past one another.
d) Particles in liquid are not in contact with one another and are moving at extreme speeds.

Which of the following examples is an example of a physical change?
a) Burning of methane gas produces water and carbon dioxide
b) Vinegar and baking soda combining to form a salt and water
c) Condensation of water vapor on the outside of a cold can of soda
d) . Formation of silver sulfide when silver reacts with sulfur in the air

In which of the following media would you expect sound waves not to travel?
a) Solid
b) Liquid
c) Gas
d) Vacuum

Which of the following subatomic particles contributes significantly to the mass of an atom but does not contribute to its electrical charge?
a) Proton
b) Quarks
c) Electron
d) Neutron

Which property of matter is determined by measuring the pull of gravity on a sample of matter?
a) Weight
b) Mass
c) Volume
d) Acceleration

Which of the following properties of atoms can be used to identify an atom?
a) Its number of valence electrons
b) Its number of protons
c) Its number of neutrons
d) Its combined number of protons and neutrons

The molecules in a sample of matter move independently of one another. The substance takes the shape of its container. When the substance is moved from one container to another, its shape changes, but its volume remains the same. What is it?
a) Plasma
b) Gas
c) Liquid
d) Solid

Which of these elements has the smallest atomic radius?
a) Beryllium (Be)
b) Oxygen (O)
c) Sodium (Na)
d) Sulfur (S)

An atom contains 70 protons, 70 electrons, and 99 neutrons. What is the mass number?
a) 239
b) 169
c) 140
d) 70

Which of the following particles has a positive one charge?
a) Alpha
b) Electron
c) Neutron
d) Proton

According to the periodic table, Na will most likely react with elements in which of these groups?
a) 1
b) 3
c) 17
d) 18

Which element is a noble gas?
a) Fluorine (F)
b) Hydrogen (H)
c) Nitrogen (N)
d) Xenon (Xe)

When copper reacts with oxygen in the air, a color change takes place, and the metal changes color from reddish brown to green. What type of change occurs to produce this color change?
a) Dissolving
b) Conductivity
c) Physical change
d) Chemical change

Which of the following is true for an earthquake wave, but not for an electromagnetic wave?
a) It requires matter to transfer energy.
b) It does not require matter to transfer energy.
c) It can travel only in a vacuum.
d) It does not transfer energy

Why do atoms of elements have neutral charges?
a) .All atoms contain neutrons which have no charge
b) The number of protons and the number of neutrons are equal.
c) The number of protons and the number of electrons are equal.
d) The number of neutrons and the number of electrons are equal.

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