ch 16 electricity ch 10 prop of matter ch 12 atoms periodic table ch 21 solutions scientific method...

Ch 16 Electricity

Ch 10 prop of matter

Ch 12 atoms

periodic table

Ch 21 solutions

Scientific method Graphs

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Question 1 - 10

• Which of the following is the symbol used to represent a light bulb in a circuit diagram?

A B

C D

Answer 1 – 10

• B

Question 1 - 20• An inflated balloon that has been rubbed against a person’s

hair is touched to a neutral wall and remains attached to it. Which diagram best represents the charge distribution on the balloon and the wall?

• A B

• C D

Answer 1 – 20

• B

Question 1 - 30

• The reading on the volmeter should be approximately:

Answer 1 – 30

• 4.5 volts

Question 1 - 40

• Materials through which current will not easily flow are called:

Answer 1 – 40

• insulators

Question 1 - 50

• When more devices are added to a series circuit, the total circuit resistance:

Answer 1 – 50

• increases

Question 2 - 10

• An engineer testing a new material discovers that it breaks at a very low value of strain. The engineer could describe the material as very:

Answer 2 – 10

• brittle

Question 2 - 20

• The difficulty with which a fluid may be poured from a container is a measure of its:

Answer 2 – 20

• Viscosity

Question 2 - 30

• The property of gold which would make it most useful in the creation of jewelry

Answer 2 – 30

• malleable

Question 2 - 40

• If an object with a density of 2.0 g/cm3 is placed in a fluid with a density of 1.9 g/cm3, the object will:

Answer 2 – 40

• sink

Question 2 - 50

• The four test tubes shown are each filled to the same level with a different liquid. All the liquids are at the same temperature. Identical marbles were dropped into the test tubes at the same time, and traveled different distances in the same amount of time. Determine the order of highest viscosity to lowest viscosity liquid.

Answer 2 – 50

• BCAD

Question 3 - 10

• How many neutrons does a carbon atom with a mass number of 14 and an atomic number of 6, have?

Answer 3 – 10

• 8

Question 3 - 20

• The atomic mass of nitrogen is:

Answer 3 – 20

• 14.007

Question 3 - 30

• The atom below that is not like the others

Answer 3 – 30

• B

Question 3 - 40

• The group that is the most reactive metals

Answer 3 – 40

• Group 1, 1A, far left of periodic table

Question 3 - 50

• As you move from left to right across a period, the number of valence electrons

Answer 3 – 50

• increases

Question 4 - 10

• Ice Tea is a solution. The solvent in a glass of Ice tea would be the:

Answer 4 – 10

• water

Question 4 - 20

• Identify the solute and solvent of • Hot chocolate….

Answer 4 – 20

• Solute – powder• Solvent – water or milk

Question 4 - 30

• Sugar water is an example of this mixture

Answer 4 – 30

• Homogeneous

Question 4 - 40

• Different samples may not be exactly alike.

Answer 4 – 40

• Heterogeneous mixture

Question 4 - 50

• The universal solvent

Answer 4 – 50

• water

Question 5 - 10

• The type of graph used to show how a part of something relates to the whole is a

Answer 5 – 10

• Circle graph

Question 5 - 20

• What type of graph would be the best to use to compare the levels of lead contamination in six water wells?

Answer 5 – 20

• Bar graph

Question 5 - 30• the responding variable

Answer 5 – 30

• mass

Question 5 - 40

• Jordan noticed that as he stood farther away from his desk lamp, the light from the lamp seemed dimmer. He borrowed a light meter from his brother, who is a photographer, in order to test his observation.

• Jordan used the light meter to measure the brightness of his lamp at various distances. Distance is the:

Answer 5 – 40

• Manipulated variable / independent

Question 5 - 50

• the variable that changes in response to the manipulated (independent) variable.

Answer 5 – 50

• Responding / dependent