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Physical Science Midterm

Total questions: 92

Worksheet time: 57mins

Name
Class
Date
1.

An engineer is a/an ____.

a)

way of learning about the natural world

b)

working model used to test a design

c)

person trained to use both technological and scientific knowledge to solve practical problems

d)

possible explanation for a set of observations or an answer to a scientific question

2.

In designing a toy car, considering how much the final product will cost is an example of a ____.

a)

constraint

b)

brainstorm

c)

prototype

d)

model

3.

Prototypes are used to ____.

a)

communicate a solution

b)

test the operation of a product

c)

identify a need

d)

research a problem

4.

Identifying the cause of any problems in a design is an example of ____.

a)

troubleshooting

b)

prototyping

c)

making trade-offs

d)

brainstorming

5.

A working model used to test a design is called a ____.

a)

constraint

b)

prototype

c)

trade-off

d)

product

6.

Noticing that sugar tastes sweet is a/an ____.

a)

hypothesis

b)

inference

c)

qualitative observation

d)

quantitative observation

7.

Counting the number of cookies on a plate is a/an ____.

a)

hypothesis

b)

inference

c)

qualitative observation

d)

quantitative observation

8.

The variable that is expected to change because of another variable is known as the ____.

a)

manipulated / independent variable

b)

responding / dependent variable

c)

controlled variable

9.

Which of the following are NOT examples of data?

a)

quantitative observations

b)

qualitative observations

c)

theories

d)

measurements

10.

All of the following are examples of good laboratory preparation EXCEPT ____.

a)

knowing the safety and first-aid procedures

b)

reading through the entire lab before starting it

c)

always following your teacher's instruction

d)

rushing through the steps in the laboratory

11.

The thing or condition that is being measured in an experiment (the data) is called:

a)

manipulated / independent variable

b)

responding / dependent variable

c)

controlled variable

d)

constant

12.

Explaining or interpreting your observations based on reasoning from what you already know is ____.

a)

concluding

b)

inferring

c)

quantifying

d)

hypothesizing

13.

A prediction or proposed explanation that can be tested is called a(an):

a)

observation

b)

inference

c)

hypothesis

d)

theory

14.

Using of senses and scientific instruments to describe a thing or event:

a)

observation

b)

inference

c)

hypothesis

d)

theory

15.

Example: The plant receiving fertilizer will grow taller than the plant receiving only water.

a)

conclusion

b)

hypothesis

c)

experiment

d)

identify the problem/question

16.

What is a factor that can change in an experiment?

a)

claim

b)

variable

c)

scientific inquiry

d)

hypothesis

17.

Nelson recorded that the soap had a strong scent, this was ________________.

a)

a qualitative observation

b)

a quantitative observation

c)

a prediction

d)

a hypothesis

18.
When you explain or interpret the things you observe, you are making an ___________.
a)
qualitative observation
b)
quantitative observation
c)
inference
d)
evaluation
19.
In the event of any lab emergency, who do you notify?
a)
nurse
b)

teacher

c)
friends
d)

your mom

20.
Injuries and accidents should be reported:
a)
immediately
b)
only if serious
c)

in a few minutes, when you get the blood to stop spurting

d)

at the end of the period

21.
When you conduct experiments in the lab, long hair should be:
a)
cut off
b)

held back with both hands by your lab partner

c)
combed nicely
d)

 held back with a ponytail holder or clip

22.
When you are in the lab, you should wear:
a)
bulky sweatshirts
b)
dangling jewelry
c)
open toe shoes
d)
closed toe shoes
23.
In the event of broken equipment, what should you do?
a)
stop using the equipment and report it immediately
b)

continue using the equipment and report it later

c)

stop using the equipment and hide it in a cupboard

24.
While working in the lab, the lab table should ALWAYS be kept clear of:
a)
lab equipment
b)
books, purses and jewelry
c)
writing utensils
d)
lab worksheets
25.
What should you do if you break glass in the lab?
a)
Tell the teacher.
b)
Sweep up the glass.
c)
Pick up the glass with your hands.
d)
Ignore it; the teacher will clean it up when she sees it later.
26.

If you do not understand a direction or part of a lab procedure, you should

a)

discuss with your lab partner first, then ask your teacher

b)

make an educated guess

c)

write a pros and cons list

27.
Horseplay or practical jokes in the laboratory are
a)
ok as long as  you're done
b)
always accepted
c)
dangerous and could cause harm and invalidate the experiment
d)
fun
28.

A measurement of the amount of matter in an object is its ____.

a)

mass

b)

density

c)

volume

d)

length

29.

Which of the following is a physical property of an element?

a)

color

b)

flammability

c)

ability to rust

d)

ability to tarnish

30.

A cubic centimeter is a unit for measuring ____.

a)

length

b)

volume

c)

mass

d)

density

31.

The energy of matter in motion is ____.

a)

electromagnetic

b)

potential

c)

chemical

d)

kinetic

32.

A/an ____ is an example of a homogeneous mixture that is very evenly mixed.

a)

compound

b)

element

c)

pure substance

d)

solution

33.

A chemical bond is ____.

a)

a group of atoms that are joined together

b)

the basic particle of matter

c)

the force that holds two atoms together

d)

a substance formed from the chemical combination of two or more atoms

34.

Everything around you is considered ____.

a)

mass

b)

substances

c)

elements

d)

matter

35.

Shape, color, luster, and boiling point are all ____.

a)

physical properties

b)

chemical properties

c)

spatial characteristics

d)

substance properties

36.

Iron’s ability to rust when exposed to air is a ____.

a)

classification characteristic

b)

physical property

c)

atomic property

d)

chemical property

37.

An example of a pure substance that cannot be broken down is ____.

a)

water

b)

carbon

c)

fire

d)

dirt

38.

The measure of the force of gravity on an object is ____.

a)

mass

b)

volume

c)

weight

d)

matter

39.

We calculate ____ by multiplying length x height x width.

a)

mass

b)

density

c)

weight

d)

volume

40.

A pure substance made of two or more elements chemically combined in a set ratio is a ____.

a)

molecule

b)

compound

c)

mixture

d)

atom

41.

____ is the ability to do work or cause change.

a)

temperature

b)

density

c)

heat

d)

energy

42.

A reaction in which energy is released, usually in the form of heat and/or light is a ____.

a)

atomic reaction

b)

exothermic reaction

c)

endothermic reaction

d)

potential reaction

43.

____ states that matter is not created or destroyed in any chemical or physical change.

a)

International System of Units

b)

chemical energy

c)

Atomic Theory

d)

Law of Conservation of Mass/Matter

44.

The total energy of all of the particles in an object is its ____.

a)

temperature

b)

thermal energy/heat

c)

endothermic ability

d)

exothermic ability

45.

A snowman melting is an example of a ____ reaction.

a)

chemical

b)

electromagnetic

c)

exothermic

d)

endothermic

46.

A firework going off is an example of a ____ reaction.

a)

physical

b)

kinetic

c)

exothermic

d)

endothermic

47.

UV rays and microwaves are examples of ____.

a)

electromagnetic energy

b)

magic

c)

chemical energy

d)

kinetic energy

48.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
49.
What is the measuring unit for mass?
a)
centimeter 
b)
millimeter 
c)
grams 
d)
pounds
50.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
51.
What is this tool to get volume?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
52.
What is this tool to get mass?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
53.
How does the mass of a bowling ball on Earth compare to its mass on the moon?
a)
The mass will be greater on the moon
b)
The mass will be less on the moon
c)
The mass will stay the same
54.

Which of the following properties can change during a physical change?

a)

shape

b)

pH level

c)

flammability

d)

reactivity

55.
Which of the following is an example of a physical change?
a)
sugar and oxygen reacting to produce water and carbon dioxide
b)
honey dissolving in tea
c)
a raw egg being cooked
d)
metal rusting after being left out in the rain
56.
Which of the following physical changes shows a change in a substance's state of matter?
a)
a piece of paper being torn in half
b)
clay being molded into a bowl
c)
an ice cube being crushed
d)
liquid water becoming steam
57.
What is the difference between heat and temperature?    
a)
a.  Temperature measures the motion of molecules, and heat is the energy of that motion
b)
b.  Temperature is measured by a thermometer, and heat is measured by a barometer
c)
c.  Heat is measured in calories, and temperature is measured in joules
d)
d.  Heat is caused by the sun, and temperature is caused by conditions in the atmosphere
58.

Which model is demonstrating what molecules in a solid look like.

a)
b)
c)
59.

If thermal energy is increasing, what is happening to the kinetic energy.

a)

Kinetic energy would be decreasing

b)

Kinetic energy would stay the same

c)

Kinetic energy would be increasing

60.
If an object has greater mass, it has greater
a)
Temperature
b)
Thermal Energy
c)
Heat 
d)
All of the above 
61.
The particles of a gas move ____than the particles of the same substance in the liquid or solid state.
a)
faster
b)
slower
c)
same speed
62.
The change of state from a solid to a liquid is called ______.
a)
Freezing
b)
Boiling
c)
Melting
63.
Thermal energy and temperature are the same.
a)
True
b)
False
64.
As the thermal energy of a substance increases, its particles spread out and the substance expands.
a)
True
b)
False
65.
What do you call the temperature at which a substance changes from a liquid to a solid?
a)
Melting Point
b)
Boiling Point
c)
Freezing Point
d)
Solid Point
66.
Matter will change from one state to another if thermal energy is _______.
a)
released
b)
absorbed
c)
all of the above
d)
none of the above
67.

Energy is defined as

a)

power

b)

food

c)

ability to produce heat

d)

ability to do work or cause change

68.

This phase of matter has the most thermal energy

a)

gas

b)

liquid

c)

solid

69.

A property that is observed without making changes to the substance.

a)

chemical reaction

b)

physical property

c)

chemical property

d)

physical reaction

70.

Which of the following properties can be used to identify an unknown substance?

a)

temperature

b)

density

c)

mass

d)

weight

71.

When baking soda mixes with vinegar, a chemical reaction occurs. This reactivity is an example of a ___.

a)

chemical property

b)

physical property

72.

A penny turning green is a ___.

a)

chemical change

b)

physical change

73.

An instant ice pack turning cold is a ___.

a)

chemical change

b)

physical change

74.

An object going from a solid to a liquid is

a)

sublimation

b)

deposition

c)

freezing

d)

melting

75.

A gel ice pack freezing after being in the freezer for 2 hours is a ___.

a)

chemical change

b)

physical change

76.

Which of the following is an example of a chemical change?

a)

cutting paper

b)

freezing water

c)

sugar burning

77.

Flammability is a ___ property.

a)

physical

b)

chemical

78.

Which of the following is a unit for volume?

a)

mL

b)

g/mL

c)

g

d)

cm

79.

Sublimation is the process of

a)

a gas going to a liquid

b)

a solid going to a gas

c)

a liquid going to a solid

d)

a gas going to a solid

80.

Which state of matter do the particles slip and slide past each other?

a)

solid

b)

liquid

c)

gas

81.

What state of matter is represented in the picture above?

a)

solid

b)

liquid

c)

gas

82.

Which type(s) of matter have a definite volume?

a)

solid

b)

liquid

c)

gas

83.

Which type(s) of matter take on the shape of the container they are in?

a)

solid

b)

liquid

c)

gas

84.

State of matter with a definite volume, but no definite shape.

a)

solid

b)

liquid

c)

gas

85.

State of matter with no definite shape and no definite volume.

a)

solid

b)

liquid

c)

gas

86.

Particles vibrate in place and do not change relative positions.

a)

solid

b)

liquid

c)

gas

87.

Particles are widely spaced except when they collide.

a)

solid

b)

liquid

c)

gas

88.

Basic state of matter with the greatest amount of energy.

a)

solid

b)

liquid

c)

gas

89.

What happens to particles when their temperature increases?

a)

The particles move slower

b)

The particles move faster

c)

The particles lose mass

d)

The particles gain mass

90.

The TOTAL kinetic energy of particles in a substance is its...

a)

Heat

b)

Volume

c)

Thermal Energy

d)

Temperature

91.

The AVERAGE kinetic energy of particles in a substance is its...

a)

Mass

b)

Volume

c)

Thermal Energy

d)

Temperature

92.

The amount of space something takes up is its...

a)

Mass

b)

Volume

c)

Thermal Energy

d)

Temperature

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