Which statement classifies the sound wave? A stereo speaker is made of a flexible cone-shaped material that vibrates, creating a sound wave. A sound wave formed by a speaker travels through air to your ear as a series of compressions and rarefactions of air molecules.

longitudinal wave in which the particles of the wave move in a direction parallel to the wave motion

transverse wave in which the particles of the wave move in a direction parallel to the wave motion

transverse wave in which the particles of the wave move in a direction perpendicular to the wave motion

longitudinal wave in which the particles of the wave move in a direction perpendicular to the wave motion

When John broke his arm, the doctor took an x-ray of John’s arm. John had never seen an x-ray before. He asked the doctor how the x-ray was able to show his bones but not his skin and other tissue. Which explanation would the doctor best provide to John?

X-rays have higher frequency than visible light and therefore can pass through skin and tissue but not through the bone.

X-rays have lower energy than visible light and therefore produce a black background behind the bone image.

X-rays have lower frequency than infrared light and therefore penetrates through the bone.

X-rays have higher frequency than gamma rays and therefore pass through skin and bone.

When a car engine is started, gasoline is mixed with air and burned. Heat, sound, and chemical products are released. As the engine operates, which of these remains constant?

the masses of compounds found in the engin

the amount of heat in the engine

Emily’s younger sister Amy has just learned that radio waves, like X-rays, are a form of electromagnetic energy. Amy asks Emily why radio waves aren’t dangerous like X-rays. Which answer is most accurate?

Radio waves have a lower energy than X-rays.

Radio waves have a lower velocity than X-rays

Radio waves have a greater amplitude than X-rays.

Radio waves have a greater frequency than X-rays.

A 0.20 kg softball travels 97 meters (m) south for 4.5 seconds (s). What piece of information distinguishes the velocity from the speed of the ball?

The ball has a mass of 0.20 kg.

An object such as a hammer weighs less on the Moon than on Earth. This is because the Moon has a

stronger magnetic field than Earth.

Traveling in opposite directions, buses A and B are passing each other at the relative speed of 25 km/h, while a passenger on bus A walks toward the back of the bus at the speed of 5 km/h. What is the velocity of the passenger on bus A relative to bus B?

20 km/h in the direction of bus A

20 km/h in the direction of bus B

30 km/h in the direction of bus A

30 km/h in the direction of bus B

Student 1 rides in a moving car and observes a bus traveling east. She estimates that it is traveling at a rate of 20 kilometers per hour (km/h). Student 2 is standing on the sidewalk and observes the same bus at the same time. She estimates that it is moving east at a rate of 50 km/h.

All motion is relative to the frame of reference chosen for measurement.

Velocity varies with the compass direction of motion.

Measurement error causes multiple observations of motion to conflict.

Acceleration and velocity have different values because they are different measures of motion. less Actions

The weight of an object can change even when the mass stays the same. Which statement correctly identifies a relationship between mass and weight?

Gravity affects the weight of an object but not its mass.

The weight of an object depends on its mass and its volume.

The mass of an object depends on its weight and size.

Magnetic fields can affect mass but not weight.

The graph below shows the velocity versus time for an object moving in one dimension.

0 to 3 s: acceleration is zero; 3 to 4 s: constant, negative acceleration; 4 to 7 s: constant velocity of –10 m/s; 7 to 8 s: increasing acceleration

0 to 3 s: velocity is zero; 3 to 4 s: negative, constant acceleration; 4 to 7 s: velocity is zero; 7 to 8 s: increasing acceleration

0 to 3 s: constant velocity of 30 m/s; 3 to 4 s: positive, constant acceleration; 4 to 7 s: constant velocity of –10 m/s; 7 to 8 s: decreasing acceleration

0 to 3 s: constant acceleration of 30 m/s; 3 to 4 s: negative, constant acceleration; 4 to 7 s: constant velocity of –10 m/s; 7 to 8 s: increasing acceleration

Which of the following characterizes gamma radiation?

It is weakly ionizing, penetrating through dense materials.

It has a strong positive charge.

It moves quite fast and the particles are quite small.

It is small, and it has a negative charge.

A balanced chemical equation shows

elements created by a reaction.

phase changes taking place during a reaction.

the number of molecules involved in a reaction.

Lidia studied the atomic structure of elements in the periodic table. Which is a common property of the two atoms shown?

The electron structure supports inactivity

The electrons in both are available to bond

The nucleus in each of the atoms has equal protons

The outer electrons in both atoms bond with metals only

A student is using a straw to blow bubbles into a calcium hydroxide solution. The carbon dioxide in the student’s breath is reacting with the water to form an acid, which begins to neutralize the basic solution. Which of the following best describes the initial change in pH of the solution?

decrease in pH toward a pH of 7

increase in pH toward a pH of 7

increase of pH away from a pH of 7

decrease of pH away from pH of 7

Which statement is an opinion about the element copper?

Copper mixed with silver is expensive.

Copper is a good conductor of electricity.

Copper can be pounded into many shapes.

Copper is an excellent conductor of heat.

On the periodic table, helium (He) is placed at the top of group 18 (8A). What is the reason for helium being at this location on the periodic table?

Helium has a filled outer energy shell

Helium loses its electrons easily

A student is given a liquid compound in a beaker. Which of the following is the best way to describe this liquid compound?

indefinite shape, definite volume

definite shape, indefinite volume

indefinite shape, indefinite volume

definite shape, definite volume

Even though nuclear fission has been used to produce electric power for many decades, nuclear fusion power plants have not yet been developed. Why is nuclear fusion not used to produce power?

Nuclear fusion generates much more energy than nuclear fission so it is much harder to control.

Nuclear fusion reactions only occur at temperatures that are much greater than those of nuclear fission.

Nuclear fusion can only occur in very dense places such as the center of a star while nuclear fission can occur on Earth.

Nuclear fusion requires starting materials that are not readily available but uranium for nuclear fission is easy to find.

Compared with compounds such as sodium chloride, the wax produced by bees has a low boiling point. Whichbest explains this property of beeswax?

t is made from covalently bonded compounds.

It is a solid at room temperature.

It has a crystalline ionic structure.

It is composed of more than one element.

Which occurs in a fusion reaction between two atoms?

A new element is formed and energy is released.

Energy is absorbed as a less stable element forms.

Energy is converted into mass and forms a heavier element.

The nuclei of the atoms are split apart and energy is released.

The table below shows the properties of calcium metal. Which statement characterizes the properties of calcium based on the table?

The reactivity of calcium is a chemical property because it involves a change in the chemical composition.

The appearance of calcium is a physical property because its color depends on chemical changes.

The melting point of calcium is a physical property because measuring it produces a chemical reaction.

The density of calcium is a chemical property because changing the density involves making calcium into another element.

The graph shows the results of the decay of the radioactive element, carbon-14 (14C), into the more stable element, nitrogen-14 (14N). Which could most likely be concluded from the information in the graph?

The amount of carbon-14 (14C) will be undetectable in about 30,000 years.

One half-life is about 28,650 years.

Carbon-14 (14C) dating would be useful for one-million-year-old fossils.

The carbon-14 (14C) in the sample will begin to increase in 29,000 years.

Physical Science 2016 Pretest (year)

Authored by Pamela Phillips

Physics, Chemistry

9th - 12th Grade

Used 111+ times

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48 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a pencil is placed in a cup of water, the pencil looks bent.

reflection

refraction

interference

diffraction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When the motor is connected to a battery, the loop rotates. When the motor is disconnected, the loop stops rotating. Which of these statements best explains why the loop only turns when the motor is connected to the battery?A motor is created when a copper loop is placed between two permanent magnets as shown in the diagram below.

The battery moves electrons in the permanent magnets to build an electric field.

The battery causes the loop to conduct electricity through the magnets.

The battery moves electrical charges through the loop creating a magnetic field.

The battery pushes protons through the commutator, causing magnetism.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The range of all forms of radiant energy is called the

video spectrum.

audio spectrum

color spectrum

electromagnetic spectrum

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement below correctly describes water?

Water is an ionic crystalline compound

The atoms in a water molecule are bonded covalently

A sample of water has a definite volume and definite shape

A water molecule consists of two atoms of hydrogen and two atoms of oxygen.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student is playing with a small toy boat on a pond. The student throws a rock in the pond. This creates waves that move the boat toward the shore. The boat moves toward the shore because the waves transfer

energy

heat

motion

water

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two waves have the following waveforms.

Wave A has higher frequency.

Wave A is an ultraviolet wave.

Wave B has greater energy.

Wave B is a visible light wave.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A glass of water left in the sun becomes warm. Estella adds ice to the water to make it cool. What energy change occurs when ice is added to the warm drink?

The water loses heat to the ice, causing the ice to melt.

The water absorbs the cold temperature from the ice.

Since the ice is cold, it adds cold to the environment.

The melting ice causes the water to expand, cooling it.

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Physical Science 2016 Pretest (year)

When a pencil is placed in a cup of water, the pencil looks bent.

The range of all forms of radiant energy is called the

Which statement below correctly describes water?

A student is playing with a small toy boat on a pond. The student throws a rock in the pond. This creates waves that move the boat toward the shore. The boat moves toward the shore because the waves transfer

Two waves have the following waveforms.

A glass of water left in the sun becomes warm. Estella adds ice to the water to make it cool. What energy change occurs when ice is added to the warm drink?

Which statement classifies the sound wave?A stereo speaker is made of a flexible cone-shaped material that vibrates, creating a sound wave. A sound wave formed by a speaker travels through air to your ear as a series of compressions and rarefactions of air molecules.

A light wave travels through the air, passes through glass, and then travels back into the air.

An X-ray was detected having a wavelength of 1 X 10^-11 m, the speed of light is 2.99 X 10 ⁸ m/s. What is the frequency of the wavelength?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

Physical Science 2016 Pretest (year)

When a pencil is placed in a cup of water, the pencil looks bent.

The range of all forms of radiant energy is called the

Which statement below correctly describes water?

A student is playing with a small toy boat on a pond. The student throws a rock in the pond. This creates waves that move the boat toward the shore. The boat moves toward the shore because the waves transfer

Two waves have the following waveforms.

A glass of water left in the sun becomes warm. Estella adds ice to the water to make it cool. What energy change occurs when ice is added to the warm drink?

Which statement classifies the sound wave?A stereo speaker is made of a flexible cone-shaped material that vibrates, creating a sound wave. A sound wave formed by a speaker travels through air to your ear as a series of compressions and rarefactions of air molecules.

A light wave travels through the air, passes through glass, and then travels back into the air.

An X-ray was detected having a wavelength of 1 X 10-11 m, the speed of light is 2.99 X 10 8 m/s. What is the frequency of the wavelength?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

An X-ray was detected having a wavelength of 1 X 10^-11 m, the speed of light is 2.99 X 10 ⁸ m/s. What is the frequency of the wavelength?