Quiz about Final Exam - Topics 1-6

Question 1

What does this safety symbol warn you of?

Accepted Answer

sharp objects

Answer

biological hazard

Answer

open flames

Answer

poison

Question 2

What does this safety symbol warn you of?

Accepted Answer

biological hazard

Answer

sharp objects

Answer

open flames

Answer

poison

Question 3

What measurement is made using a graduated cylinder?

Accepted Answer

volume

Answer

length

Answer

mass

Answer

temperature

Question 4

Which of these is the SI unit of time?

Accepted Answer

second

Answer

meter

Answer

hour

Answer

liter

Question 5

Which tool is used to measure the mass of an object?

Accepted Answer

balance

Answer

graduated cylinder

Answer

stopwatch

Answer

metric ruler

Question 6

A liter is the SI unit of:

Accepted Answer

volume

Answer

mass

Answer

temperature

Answer

time

Question 7

A liter is the SI unit of:

Accepted Answer

volume

Answer

mass

Answer

temperature

Answer

time

Question 8

You roll a toy car down metal ramps of different heights to see how far it travels along the floor. Which of these are an independent variable of this experiment? [Choose all correct answers.]

Accepted Answer

ramp height

Answer

distance travelled

Answer

type of car

Answer

ramp surface

Question 9

You roll a toy car down metal ramps of different heights to see how far it travels along the floor. Which of these are a dependent variable of this experiment? [Choose all correct answers.]

Accepted Answer

distance travelled

Answer

ramp height

Answer

type of car

Answer

ramp surface

Question 10

You roll a toy car down metal ramps of different heights to see how far it travels along the floor. Which of these are a constant of this experiment? [Choose all correct answers.]

Accepted Answer

type of car

Accepted Answer

ramp surface

Answer

ramp height

Answer

distance travelled

Question 11

During which step of the scientific method would you decide whether or not you can prove your hypothesis to be true?

Accepted Answer

Draw Conclusions

Answer

Analyze the Data

Answer

Report the Results

Answer

Test the Hypothesis

Question 12

During which step of the scientific method would you decide to explore how the surface a ball bounces on affects its rebound height?

Accepted Answer

Recognize the Problem

Answer

Test the Hypothesis

Answer

Form a Hypothesis

Answer

Draw Conclusions

Question 13

A penny falls faster and faster through the air when dropped off a 20-story building. Which of the following changes in the penny's energy occur as it falls? [Choose all correct answers.]

Accepted Answer

potential energy decreases

Accepted Answer

kinetic energy increases

Answer

potential energy increases

Answer

kinetic energy decreases.

Question 14

Which type of energy is stored in the bonds of molecules?

Accepted Answer

chemical

Answer

mechanical

Answer

magnetic

Answer

nuclear

Question 15

Which type of energy holds protons and neutrons together in an atom?

Accepted Answer

nuclear

Answer

chemical

Answer

mechanical

Answer

magnetic

Question 16

You plug a fan into an outlet, and the blades of the fan begin to spin and hum. Which forms of energy are involved in this situation? [Choose all correct answers.]

Accepted Answer

electric

Accepted Answer

mechanical

Accepted Answer

sound

Answer

chemical

Question 17

An outdoor plant performs photosynthesis, making sugar for itself as long as the sun shines on it. Which forms of energy are involved in this situation? [Choose all correct answers.]

Accepted Answer

electromagnetic

Accepted Answer

chemical

Answer

magnetic

Answer

electric

Question 18

You drop five objects of different temperatures into a container of water kept at 50 degrees Celsius. Which of these objects will experience a decrease in temperature? [Choose all correct answers.]

Accepted Answer

75 degrees Celsius object

Accepted Answer

90 degrees Celsius object

Answer

15 degrees Celsius object

Answer

40 degrees Celsius object

Answer

50 degrees Celsius object

Question 19

You drop five objects of different temperatures into a container of water kept at 50 degrees Celsius. Which of these objects will experience an increase in temperature? [Choose all correct answers.]

Accepted Answer

15 degrees Celsius object

Accepted Answer

40 degrees Celsius object

Answer

50 degrees Celsius object

Answer

75 degrees Celsius object

Answer

90 degrees Celsius object

Question 20

Which method of heat transfer explains why warm air rises up a chimney?

Accepted Answer

convection

Answer

conduction

Answer

radiation

Question 21

Which method of heat transfer explains why you feel the heat from a fireplace while standing in front of it?

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 22

Which method of heat transfer explains why you feel the heat from a burning ember that flies from a fireplace and lands on your hand?

Accepted Answer

conduction

Answer

convection

Answer

radiation

Question 23

Which of the following describes the properties of a solid? [Choose all correct answers.]

Accepted Answer

rigid shape

Accepted Answer

constant volume

Answer

fluid shape

Answer

variable volume

Question 24

Which of the following describes the properties of a liquid? [Choose all correct answers.]

Accepted Answer

fluid shape

Accepted Answer

constant volume

Answer

rigid shape

Answer

variable volume

Question 25

Which of the following describes the properties of a gas? [Choose all correct answers.]

Accepted Answer

fluid shape

Accepted Answer

variable volume

Answer

rigid shape

Answer

constant volume

Question 26

Which of these phase changes require heat to be added to matter? [Choose all correct answers.]

Accepted Answer

fusion (melting)

Accepted Answer

vaporization (boiling)

Accepted Answer

sublimation

Answer

crystallization (freezing)

Answer

condensation

Question 27

Which of these phase changes require heat to be removed from matter? [Choose all correct answers.]

Accepted Answer

crystallization (freezing)

Accepted Answer

condensation

Answer

fusion (melting)

Answer

vaporization (boiling)

Answer

sublimation

Question 28

On which sections of this heating curve can matter be found partially or entirely in the gas state? [Choose all correct answers.]

Accepted Answer

4

Accepted Answer

5

Answer

1

Answer

2

Answer

3

Question 29

On which sections of this heating curve can matter be found partially or entirely in the liquid state? [Choose all correct answers.]

Accepted Answer

2

Accepted Answer

3

Accepted Answer

4

Answer

1

Answer

5

Question 30

On which sections of this heating curve can matter be found partially or entirely in the solid state? [Choose all correct answers.]

Accepted Answer

1

Accepted Answer

2

Answer

3

Answer

4

Answer

5

Question 31

The boiling point of a substance is the same temperature as its _______________.

Accepted Answer

condensing point

Answer

freezing point

Answer

melting point

Answer

sublimating point

Question 32

The freezing point of a substance is the same temperature as its _______________.

Accepted Answer

melting point

Answer

freezing point

Answer

condensing point

Answer

sublimating point

Question 33

A block of iron at 80 degrees Celsius is place in water at 30 degrees Celsius. Which of the following is likely to occur? [Choose all correct answers.]

Accepted Answer

the iron's temperature will decrease

Accepted Answer

the water's temperature will increase

Answer

the iron's temperature will increase

Answer

the water's temperature will derease

Question 34

A block of iron at 30 degrees Celsius is place in water at 80 degrees Celsius. Which of the following is likely to occur? [Choose all correct answers.]

Accepted Answer

the iron's temperature will increase

Accepted Answer

the water's temperature will derease

Answer

the iron's temperature will decrease

Answer

the water's temperature will increase

Question 35

Four blocks with densities shown in the table provided are placed in water. Which block is the most likely to sink to the bottom of the water?

Accepted Answer

Block Y

Answer

Block W

Answer

Block X

Answer

Block Z

Question 36

Four blocks with densities shown in the table provided are placed in water. Which block is the most likely to float just slightly above the surface of the water?

Accepted Answer

Block X

Answer

Block W

Answer

Block Y

Answer

Block Z

Question 37

Four blocks with densities shown in the table provided are placed in water. Which block is the most likely to float mostly above the surface of the water?

Accepted Answer

Block W

Answer

Block X

Answer

Block Y

Answer

Block Z

Question 38

For a substance that is not water, which of these lists its states of matter from most dense to least dense?

Accepted Answer

solid, liquid, gas

Answer

liquid, solid, gas

Answer

gas, liquid, solid

Answer

gas, solid, liquid

Question 39

For a substance that is not water, which of these lists its states of matter from least dense to most dense?

Accepted Answer

gas, liquid, solid

Answer

solid, liquid, gas

Answer

liquid, solid, gas

Answer

gas, solid, liquid

Question 40

Which of the following could cause a gas to become more dense? [Choose all correct answers.]

Accepted Answer

its temperature decreases

Accepted Answer

its pressure increases

Answer

its temperature increases

Answer

its pressure decreases

Question 41

Which of the following could cause a gas to become less dense? [Choose all correct answers.]

Accepted Answer

its temperature increases

Accepted Answer

its pressure decreases

Answer

its temperature decreases

Answer

its pressure increases

Question 42

A block of copper is cut in two pieces, and one is thrown away. What is true about the remaining copper?

Accepted Answer

its density has not changed

Answer

its density has increased

Answer

its density has decreased

Question 43

A block of copper is heated in an oven for half an hour. What is true about the block of copper?

Accepted Answer

its density has decreased

Answer

its density has increased

Answer

its density has not changed

Question 44

A block of copper is cooled in a freezer for half an hour. What is true about the block of copper?

Accepted Answer

its density has increased

Answer

its density has decreased

Answer

its density has not changed

Question 45

A molecule of methane has the chemical formula shown here. How many atoms are in one molecule of methane?

Accepted Answer

5

Answer

1

Answer

2

Answer

4

Question 46

A molecule of methane has the chemical formula shown here. How many carbon atoms are in one molecule of methane?

Accepted Answer

1

Answer

2

Answer

4

Answer

5

Question 47

A molecule of methane has the chemical formula shown here. How many hydrogen atoms are in one molecule of methane?

Accepted Answer

4

Answer

1

Answer

2

Answer

5

Question 48

A molecule of methane has the chemical formula shown here. How many different elements are in one molecule of methane?

Accepted Answer

2

Answer

1

Answer

4

Answer

5

Question 49

Which of these models represents a compound with a crystal structure?

Accepted Answer

Question 50

Which of these models represents a compound with a polymer structure?

Accepted Answer

Question 51

Which of these models represents an element with a diatomic structure?

Accepted Answer

Question 52

Which choice lists the chemical symbols of three diatomic elements?

Accepted Answer

Cl, I, N

Answer

C, O, F

Answer

Ho, N, Cl

Answer

B, Ho, C

Question 53

Which choice lists the chemical symbols of no diatomic elements?

Accepted Answer

B, Ho, C

Answer

C, O, F

Answer

Cl, I, N

Answer

Ho, N, Cl

Question 54

Which of these are typically true of physical changes? [Choose all correct answers.]

Accepted Answer

matter is conserved

Accepted Answer

no new substances are produced

Accepted Answer

particles change their positions or arrangements only

Answer

bonds holding particles together are broken

Answer

new substances are produced

Question 55

Which of these are typically true of chemical changes? [Choose all correct answers.]

Accepted Answer

matter is conserved

Accepted Answer

bonds holding particles together are broken

Accepted Answer

new substances are produced

Answer

no new substances are produced

Answer

particles change their positions or arrangements only

Question 56

What coefficients must fill in the blanks (from left to right) to balance this equation?

Accepted Answer

6, 1, 2

Answer

2, 1, 1

Answer

3, 1, 1

Answer

4, 3, 2

Question 57

What coefficients must fill in the blanks (from left to right) to balance this equation?

Accepted Answer

4, 3, 2

Answer

2, 1, 1

Answer

6, 1, 2

Answer

3, 1, 1

Question 58

What might be written to the left of the arrow in a chemical equation?

Accepted Answer

reactants

Answer

products

Answer

catalysts

Question 59

What might be written to the right of the arrow in a chemical equation?

Accepted Answer

products

Answer

reactants

Answer

catalysts

Question 60

What might be written above the arrow in a chemical equation?

Accepted Answer

catalysts

Answer

reactants

Answer

products

Question 61

Which of these could speed up the rate of a chemical reaction? [Choose all correct answers.]

Accepted Answer

increase temperature

Accepted Answer

increase surface area

Answer

decrease temperature

Answer

decrease surface area

Question 62

Which of these could slow down the rate of a chemical reaction? [Choose all correct answers.]

Accepted Answer

decrease temperature

Accepted Answer

decrease surface area

Answer

increase temperature

Answer

increase surface area

Question 63

Which of these are synthetic materials? [Choose all correct answers.]

Accepted Answer

plastic

Accepted Answer

concrete

Accepted Answer

paper

Answer

wood

Answer

air

Final Exam - Topics 1-6

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