Quiz about PMA 2 Review

Question 1

Which wave in the diagram has the greatest frequency?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 2

What happens when ice cubes melt in a glass?

Accepted Answer

Heat is transferred from the warmer water to the ice cubes.

Answer

Heat travels from the ice to the warmer water.

Answer

No energy is transferred.

Answer

The water warms up due to the humidity

Question 3

An aluminum plate and a plastic plate have been in the freezer all night long.  When you remove them the next morning,

Accepted Answer

the plates have the same temperature.

Answer

the plastic plate has a higher temperature.

Answer

the plastic plate has a lower temperature.

Answer

the aluminum plate has a lower temperature.

Question 4

What happens to particles as they heat up?

Accepted Answer

They speed up

Answer

They slow down

Answer

Nothing

Answer

They don't move

Question 5

A copper penny turning greenish after a few years is an example of ...

Accepted Answer

Chemical Change

Answer

Physical Change

Question 6

A change in which NEW substances are formed.

Accepted Answer

Chemical change

Answer

Physical change

Answer

Casual change

Answer

Formal change

Question 7

Which of the following is NOT an example of chemical change?

Accepted Answer

breaking a pencil

Answer

sour milk

Answer

burning wood

Answer

rust

Question 8

Which of the following is NOT an example of a physical change?

Accepted Answer

sour milk

Answer

crumpled paper

Answer

pencil sharpening

Answer

shrunken clothing

Question 9

Is melting butter for popcorn a chemical or physical change?

Accepted Answer

physical

Answer

chemical

Question 10

Ripping up paper ...

Accepted Answer

Physical Change

Answer

Chemical Change

Question 11

A change in phase ...

Accepted Answer

Physical Change

Answer

Chemical Change

Question 12

What is mass?

Accepted Answer

The amount of matter in an object

Answer

The amount of water in an object

Answer

The amount of fat in an object

Answer

The amount of gravity in an object

Question 13

What is weight?

Accepted Answer

The gravitational force acting on the body

Answer

The magnetic force acting on the body

Answer

The electric force acting on the body

Answer

The amount of matter in a body

Question 14

What is the formula for density?

Accepted Answer

density = mass / volume

Answer

density = volume / mass

Answer

density = mass x volume

Answer

density = mass + volume

Question 15

Where are electrons of an atom found?

Accepted Answer

Electron Cloud

Answer

Nucleus

Answer

Some are in the nucleus and some in the electron cloud.

Answer

They are moving everywhere.

Question 16

Which of the following is a positively charged subatomic particle found in the nucleus of an atom?

Accepted Answer

Proton

Answer

Electron

Answer

Neutron

Answer

Quark

Question 17

What carries no charge

Accepted Answer

Neutrons

Answer

Electrons

Answer

Protons

Question 18

What is the Atomic Mass?

Accepted Answer

6.941

Answer

7

Answer

3

Answer

6

Question 19

How many Protons are in one atom of Lithium?

Accepted Answer

3

Answer

6

Answer

7

Answer

6.941

Question 20

Which is the smallest?

Accepted Answer

electron

Answer

proton

Answer

atom

Answer

neutron

Question 21

The amount of space that matter takes up

Accepted Answer

Volume

Answer

Matter

Answer

Liquid

Answer

Atom

Question 22

Temperature at which a solid changes to a liquid  is

Accepted Answer

Melting Point

Answer

Volume

Answer

Atom

Answer

Matter

Question 23

What is MATTER?

Accepted Answer

Anything that has MASS and takes up SPACE

Answer

Anything that has MASS

Answer

Anything that takes up SPACE

Answer

Anything that DOES NOT have mass or take up space

Question 24

These have a FIXED volume, but NOT a fixed shape, taking the shape of their container.

Accepted Answer

Liquid

Answer

Solid

Answer

Gas

Question 25

In which state of matter will there be the LARGEST space between molecules?

Accepted Answer

Gas

Answer

Solid

Answer

Liquid

Question 26

Neutral solutions have a pH of:

Accepted Answer

7

Answer

0

Answer

1

Answer

14

Question 27

Vinegar, fruit juice, and cola are examples of:

Accepted Answer

weak acids

Answer

strong acids

Answer

strong bases

Answer

strong bases

Question 28

Is laundry detergent an acid or a base?

Accepted Answer

Base

Answer

Acid

Answer

Neither (Neutral)

Question 29

Ammonia is found in many household products, including window cleaner. What is the pH of ammonia?

Accepted Answer

It's basic.

Answer

It's acidic.

Answer

It's neutral.

Question 30

Vinegar is an example of:

Accepted Answer

An acid.

Answer

A base.

Answer

Neither an acid nor a base.

Question 31

What is the name of a single type of atom?

Accepted Answer

element

Answer

cell

Answer

proton

Answer

atom

Question 32

What is the term for combining 2 or more atoms together?

Accepted Answer

molecules

Answer

atoms

Answer

elements

Answer

compounds

Question 33

What is the picture displayed?

Accepted Answer

compound

Answer

atom

Answer

element

Answer

molecule

Question 34

What is the picture displayed?

Accepted Answer

molecule

Answer

atom

Answer

element

Answer

compound

Question 35

What is the picture displayed?

Accepted Answer

element

Answer

atom

Answer

molecule

Answer

compound

Question 36

Salad is an example of a

Accepted Answer

heterogeneous mixture

Answer

homogeneous mixture

Question 37

The parts of the experiment that are kept the same for all groups are called...

Accepted Answer

Constants

Answer

Controls

Answer

Test Variables

Answer

Outcome Variables

Question 38

The variable that the scientist changes on purpose is..

Accepted Answer

Test Variable

Answer

Constant

Answer

Control

Answer

Outcome Variable

Question 39

The variable that is being counted, or measured at the end of the experiment is known as ...

Accepted Answer

Outcome Variable

Answer

Control

Answer

Constant

Answer

Test Variable

Question 40

In an experiment testing the melting time of ice cream with different toppings. Which of these would be the control group?

Accepted Answer

vanilla ice cream

Answer

vanilla ice cream with sprinkles

Answer

vanilla ice cream with hot fudge

Answer

vanilla ice cream with caramel

Question 41

Mrs. Szerdy wants to see if studying time affects test scores...She gives all 6 classes the same test but assigns different study times. What is the constant?

Accepted Answer

The Test

Answer

Study Times

Answer

Test Scores

Question 42

Mrs. Szerdy wants to see if studying time affects test scores. She gives all 6 classes the same test but assigns different study times. What is the test variable?

Accepted Answer

Study time

Answer

Test score

Answer

The test

Answer

The subject

Question 43

Mrs. Szerdy wants to see if studying affects test scores. She gives all 6 classes the same test but assigns different study times. What is the outcome variable?

Accepted Answer

Test Score

Answer

Study time

Answer

The test

Answer

The subject

Question 44

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease." What is the test variable?

Accepted Answer

Amount of salt

Answer

Boiling Point

Answer

Amount of water

Question 45

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, equal light, equal water, and two different fertilizers. What type of variable is the fertilizer?

Accepted Answer

Test

Answer

Outcome

Answer

Control

Answer

Constant

Question 46

How many variables can be tested in a controlled experiment?

Accepted Answer

one

Answer

two

Answer

three

Answer

as many as possible

Question 47

A student wants to test the effects of different types of exercise on heart rate. What is the outcome variable?

Accepted Answer

heart rate

Answer

type of exercise

Answer

amount of exercise

Answer

time of day exercise occurs

Question 48

The yard is wet so it must have rained last night is an example of a (an)

Accepted Answer

inference

Answer

constant

Answer

control

Answer

quantitative data

Question 49

When you predict an outcome of an experiment you are ....

Accepted Answer

Hypothesizing

Answer

Experimenting

Answer

Analyzing

Answer

Concluding

Question 50

This is a test to see if your hypothesis is correct.

Accepted Answer

Experiment

Answer

Observe

Answer

Analyze

Answer

Conclude

Question 51

Zack is testing whether temperature affects the distance a rubber band can be stretched before it breaks. He tests three rubber bands at room temperature. He heats three rubber bands in a microwave oven. He puts three in the refrigerator and three in the freezer.

Which is the control group?

Accepted Answer

rubber bands at room temperature

Answer

rubber bands in the freezer

Answer

rubber bands in the refrigerator

Answer

rubber bands in the microwave

Question 52

When a pendulum swings, at which point is kinetic energy highest?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 53

What organelle of the cell produces energy?

Accepted Answer

Mitochondria

Answer

Golgi Body

Answer

Vesicle

Answer

Vacuole

Question 54

This organelle absorbs energy from the sunlight and uses it to make food

Accepted Answer

Chloroplasts

Answer

Nucleus

Answer

Vacuole

Answer

Golgi Apparatus

Question 55

The DNA of a cell can be found here

Accepted Answer

Nucleus

Answer

Cytoplasm

Answer

Rough ER

Answer

Mitochondria

Question 56

Which kingdom contains only multicellular autotrophs?

Accepted Answer

plant

Answer

fungi

Answer

animal

Answer

protist

Question 57

Day & night are caused by the ______________ of earth on its axis

Accepted Answer

rotation

Answer

revolution

Answer

orbit

Answer

tilt of the axis

Question 58

Name the phase of the moon for letter a

Accepted Answer

First Quarter

Answer

Last Quarter

Answer

Waxing Gibbous

Answer

Waning Gibbous

Question 59

ROTATE vs REVOLVE
What causes the seasons?

Accepted Answer

The Earth revolving around the Sun on its tilted axis.

Answer

The Earth spinning or rotating

Question 60

Ethan is observing chemical and physical properties of a substance. He heats a

substance and observes that the substance turns from a brown solid to a black

powder. He refers to several chemistry journals that claim this represents a chemical

reaction. From his observation and research, he concludes that the substance goes

through a chemical change when heated. How can Ethan best defend his conclusion?

Accepted Answer

B. by verifying that the substance is now made up of different molecules than

before it was heated

Answer

A. by demonstrating that the substance will eventually melt if the temperature

continues to increase

Answer

C. by verifying that the substance is made up of only one type of element

Answer

D. by demonstrating that the substance is less dense after it is heated

Question 61

What is the difference between a scientific theory and a scientific law?

Accepted Answer

Laws describe what happens but theories explain why or how.

Answer

Theories are upgraded into laws once they are proven.

Answer

Laws use mathematical explanations and theories do not

Answer

A. Theories combine several laws into one.

Question 62

A timeline of some models of atoms throughout the history is shown below. Those models have contributed to the formation of the atomic theory. Which of the following statements best summarizes the formation of atomic theory?

Accepted Answer

A. The discovery of new evidence resulted in changes to the atomic theory.

Answer

Advancements in atomic models proved the atomic theory was accurate

Answer

The atomic theory was modified with the discovery of every new element

Answer

Changes in the atomic models showed that the atomic theory was based on opinions

Question 63

The number at the top of each square on the periodic table is the ...

Accepted Answer

atomic number

Answer

atomic mass

Answer

Chemical Symbol

Answer

Element Name

Question 64

What is the chemical symbol for Lithium?

Accepted Answer

Li

Answer

H

Answer

He

Answer

N

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