Question 1

In a paragraph, describe the difference between transparent, opaque, and translucent with regard to refraction of light.

Accepted Answer

A material that light can pass through is called transparent. Materials that light cannot pass through are called opaque. Materials that permit some, but not all, light to pass through are called translucent. As light passes from one medium to another, it is bent, or refracted. Light traveling through air bends as it enters water, glass, or clear plastic. This bending, or refraction, of light waves can be put to good use. A lens, for example, changes the appearance of objects because the image we see through the lens is produced by rays of light that have been bent. Eyeglasses, microscopes, hand lenses, and telescopes all provide images formed by light rays that have been refracted.

Question 2

Which of the following is a correct statement about the nature or behavior of sound?

Accepted Answer

A)  Sound waves consist of compressions and rarefactions. 
B)  The frequency of a sound wave and its volume are the same. 
C)  Its speed is 186,000 miles/second (about 300,000 kilometers/second). 
D)  Its speed at the surface of the earth does not vary with the temperature of the air. 
A)  Sound waves consist of compressions and rarefactions. 
B)  The frequency of a sound wave and its volume are the same. 
C)  Its speed is 186,000 miles/second (about 300,000 kilometers/second). 
D)  Its speed at the surface of the earth does not vary with the temperature of the air. A

Question 3

There is a distinct difference between kinetic and potential energy. In a paragraph, describe both types of energy, 
and be sure the description clarifies the difference between the two.

Accepted Answer

Energy (capacity to do work or produce change) is present whenever there are moving objects. The higher a mass is lifted, the more potential it has to transfer energy and do work on its way down. Hence, this stored energy is referred to as potential energy. Once the potential energy is transferred through movement, it is referred to as kinetic energy.

Question 4

In a paragraph, explain how the concepts magnets, electricity, generators, and motors are related.

Accepted Answer

Around all magnets is a magnetic field.

Question 5

Considering question 5, provide two real life examples of both types of circuits.

Accepted Answer

Responses will vary. Some possible examp

Question 6

Which of the following is a characteristic of light rays?

Accepted Answer

A)  Their direction can be changed by a mirror 
B)  They are straightened as they travel from one medium to another 
C)  Whey they shine through a convex lens they are spread apart by that lens 
D)  When they shine through a concave lens they are brought to the middle of that lens 
A)  Their direction can be changed by a mirror 
B)  They are straightened as they travel from one medium to another 
C)  Whey they shine through a convex lens they are spread apart by that lens 
D)  When they shine through a concave lens they are brought to the middle of that lens

Question 7

Which of the following is a characteristic of a convex lens?

Accepted Answer

A)  It is thicker at its edges than at its center 
B)  It pulls light rays together to a focal point 
C)  It causes light rays to bend toward its edges 
D)  It can produce only virtual images that are smaller than the real objects 
A)  It is thicker at its edges than at its center 
B)  It pulls light rays together to a focal point 
C)  It causes light rays to bend toward its edges 
D)  It can produce only virtual images that are smaller than the real objects

Question 8

Which of the following statements is not a component of the law of conservation of energy?

Accepted Answer

A)  Energy is not created. 
B)  Energy is dependent upon the height and mass of objects. 
C)  Energy can be transformed from one form to another. 
D)  Energy is not destroyed. 
A)  Energy is not created. 
B)  Energy is dependent upon the height and mass of objects. 
C)  Energy can be transformed from one form to another. 
D)  Energy is not destroyed.

Question 9

Which of the following is a correct statement that could be made about a simple circuit containing a lit bulb?

Accepted Answer

A)  Any switch in the circuit must be open. 
B)  There is a flow of electrons through the circuit. 
C)  An insulator in the circuit has terminated electron flow. 
D)  Protons flowing through the bulb's filament caused the release of light and heat. 
A)  Any switch in the circuit must be open. 
B)  There is a flow of electrons through the circuit. 
C)  An insulator in the circuit has terminated electron flow. 
D)  Protons flowing through the bulb's filament caused the release of light and heat.

Question 10

Which of the following would be an incorrect statement about a small, lit light bulb in a simple series circuit?

Accepted Answer

A)  It is an energy converter. 
B)  It usually contains a filament. 
C)  It is converting heat energy to electrical energy. 
D)  It offers resistance to the flow of electrical energy. 
A)  It is an energy converter. 
B)  It usually contains a filament. 
C)  It is converting heat energy to electrical energy. 
D)  It offers resistance to the flow of electrical energy.

Question 11

In order to understand the concept of static electricity, one would also have to understand which of the
Following?

Accepted Answer

A)  Atoms 
B)  Generators 
C)  Heat transfer 
D)  Electrical circuits 
A)  Atoms 
B)  Generators 
C)  Heat transfer 
D)  Electrical circuits

Question 12

Some of the topics discussed in this chapter include light, prisms, and color. In a paragraph, describe the relationship between these concepts.

Accepted Answer

A band of colors in sunlight or artifici

Question 13

Which of the following depends on the number of complete vibrations that the vibrating object makes in
One second?

Accepted Answer

A)  Pitch 
B)  Intensity 
C)  Loudness 
D)  Frequency 
A)  Pitch 
B)  Intensity 
C)  Loudness 
D)  Frequency

Question 14

In two paragraphs, describe the difference between a convex and concave lens.

Accepted Answer

A convex lens is thicker in the middle t

Question 15

There are distinct differences between parallel and series circuits. In a paragraph, describe both types of circuits, and be sure the description clarifies the difference between the two.

Accepted Answer

A series circuit has only one path for c

Question 16

Considering question 3, provide two real life examples of both types of energy.

Accepted Answer

Responses will vary. Some possible examp

Question 17

Which of the following is an example of a good electrical conductor?

Accepted Answer

A)  Wood 
B)  Rubber 
C)  Selenium 
D)  Aluminum 
A)  Wood 
B)  Rubber 
C)  Selenium 
D)  Aluminum

Question 18

Considering question 7, provide at least two everyday examples of each.

Accepted Answer

Responses will vary. Some possible examp

Question 19

Which of the following serves as an accurate definition of opaque materials?

Accepted Answer

A)  Materials that light can pass through 
B)  Materials that light cannot pass through 
C)  Materials that permit some, but not all, light to pass through 
D)  Materials that permit exactly ½ of light waves to pass through 
A)  Materials that light can pass through 
B)  Materials that light cannot pass through 
C)  Materials that permit some, but not all, light to pass through 
D)  Materials that permit exactly ½ of light waves to pass through

Question 20

In at least three sentences, outline the steps involved in a sound being made.

Accepted Answer

When a sound is made, the vibrations pre

In a paragraph, describe the difference between transparent, opaque, and translucent with regard to refraction of light.

Which of the following is a correct statement about the nature or behavior of sound?

There is a distinct difference between kinetic and potential energy. In a paragraph, describe both types of energy, and be sure the description clarifies the difference between the two.

In a paragraph, explain how the concepts magnets, electricity, generators, and motors are related.

Considering question 5, provide two real life examples of both types of circuits.

Which of the following is a characteristic of light rays?

Which of the following is a characteristic of a convex lens?

Which of the following statements is not a component of the law of conservation of energy?

Which of the following is a correct statement that could be made about a simple circuit containing a lit bulb?

Which of the following would be an incorrect statement about a small, lit light bulb in a simple series circuit?

In order to understand the concept of static electricity, one would also have to understand which of the Following?

Some of the topics discussed in this chapter include light, prisms, and color. In a paragraph, describe the relationship between these concepts.

Which of the following depends on the number of complete vibrations that the vibrating object makes in One second?

In two paragraphs, describe the difference between a convex and concave lens.

There are distinct differences between parallel and series circuits. In a paragraph, describe both types of circuits, and be sure the description clarifies the difference between the two.

Considering question 3, provide two real life examples of both types of energy.

Which of the following is an example of a good electrical conductor?

Considering question 7, provide at least two everyday examples of each.

Which of the following serves as an accurate definition of opaque materials?

In at least three sentences, outline the steps involved in a sound being made.

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Exam 12: Energy, Technologyengineering

In a paragraph, describe the difference between transparent, opaque, and translucent with regard to refraction of light.

Which of the following is a correct statement about the nature or behavior of sound?

There is a distinct difference between kinetic and potential energy. In a paragraph, describe both types of energy, and be sure the description clarifies the difference between the two.

In a paragraph, explain how the concepts magnets, electricity, generators, and motors are related.

Considering question 5, provide two real life examples of both types of circuits.

Which of the following is a characteristic of light rays?

Which of the following is a characteristic of a convex lens?

Which of the following statements is not a component of the law of conservation of energy?

Which of the following is a correct statement that could be made about a simple circuit containing a lit bulb?

Which of the following would be an incorrect statement about a small, lit light bulb in a simple series circuit?

In order to understand the concept of static electricity, one would also have to understand which of the Following?

Some of the topics discussed in this chapter include light, prisms, and color. In a paragraph, describe the relationship between these concepts.

Which of the following depends on the number of complete vibrations that the vibrating object makes in One second?

In two paragraphs, describe the difference between a convex and concave lens.

There are distinct differences between parallel and series circuits. In a paragraph, describe both types of circuits, and be sure the description clarifies the difference between the two.

Considering question 3, provide two real life examples of both types of energy.

Which of the following is an example of a good electrical conductor?

Considering question 7, provide at least two everyday examples of each.

Which of the following serves as an accurate definition of opaque materials?

In at least three sentences, outline the steps involved in a sound being made.

Inquiry: The Path; Discovery: The Destination

Science Practices and Inquiry Process Skills

Planning Units and Lessons

Creating Environments for Discovery

Assessment of Understanding and Inquiry

Integrating Science and Engineering

Earth and Space Science

The Cosmos

Living Things

The Human Body

Matter and Motion

Filters