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Science Exam Review 2024

Total questions: 175

Worksheet time: 3hrs 22mins

Name
Class
Date
1.

How is the temperature on the HR diagram organized?

a)

The temperature is organized from coolest(left) to hottest(right)

b)

There is no temperature on the HR diagram

c)

It is not very organized

d)

The temperature is organized from hottest(left) to coolest(right)

2.

Red stars are colder than blue stars.

a)

True

b)

False

3.

What does the color of the star tells you?

a)

Location

b)

Temperature

c)

Luminosity

d)

Weight

4.

What determines the life cycle of the stars?

a)

Temperature

b)

Mass

c)

Color

d)

Luminosity

5.

What type of galaxy do we live in?

a)

Spiral

b)

Black Hole

c)

Elliptical

d)

Irregular

6.

What is the name of our galaxy?

a)

Big Dipper

b)

Milky Way

c)

Snickers’

d)

Orion Belt

7.

What is the main difference between the 7 types of lights on the Electromagnetic Spectrum?

a)

Resting Point

b)

Crest

c)

Wavelength

d)

Amplitude

8.

What is the number of complete waves passing a fixed point in a given amount of time?

a)

Amplitude

b)

Intensity

c)

Wavelength

d)

Frequency

9.

What is frequency measured in?

a)

Milliseconds

b)

Miles

c)

Hertz

d)

Kilograms

10.

Which type of waves have the longest wavelength?

a)

Visible light

b)

Radio waves

c)

X-rays

d)

Gamma-Rays

11.

What does #1 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

12.

What does #2 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

13.

What does #3 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

14.

What is potential energy?

a)

The energy an object has due to its atomic structure.

b)

The energy an object has due to its chemical composition.

c)

The energy an object has due to its motion.

d)

The energy an object has due to its position or condition.

15.

What is kinetic energy?

a)

The energy an object has due to its position or condition

b)

The energy an object has due to its motion

c)

The energy an object has due to its chemical composition

d)

The energy an object has due to its atomic structure

16.

Which object has the most potential energy?

a)

A ball resting on the ground.

b)

A ball being thrown at 100 miles per hour.

c)

A ball on top of a refrigerator.

d)

A ball resting on the edge of a cliff.

17.

Which letter shows the ball when it has THE MOST potential energy?

a)

A

b)

B

c)

C

d)

F

e)

G

18.
The law of conservation of energy means ________________________
a)
Energy CAN be created and destroyed or transformed
b)
Energy can be used up or transformed
c)
Energy CANNOT be created or destroyed, only transformed
d)
Energy cannot be transformed
19.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
20.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
21.
A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
22.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
23.
Which runner won the race?
a)
A
b)
B
c)
C
d)
It was a tie
24.
According to the graph how far does the person travel in the first 5 seconds?
a)
2 m
b)
10 m
c)
0 m
d)
5 m
25.
Velocity is both ____ and _____. 
a)
speed , direction 
b)
direction, mass
c)
volume, density 
d)
direction, magnitude 
26.
You walk 10 meters to math class in 20 seconds. Your average speed is
a)
2 m/s
b)
0.5 m/s
c)
200 m/s
d)
5 m/s
27.
Find the velocity of a plane that traveled 3000 miles west in 5 hours.
a)
65 mph west
b)
6 mph west
c)
600 mph west
d)
6000 mph west 
28.
Which of the following represents a velocity?
a)
40 m
b)
40 m north
c)
40 m/s
d)
40 m/s north
29.
David walks 3 km north, and then turns east and walks 4 km. What is the distance?
a)
7 km
b)
3 km
c)
4 km
d)
1 km
30.
What is the speed of a cheetah that travels 112.0 m in 4.0 s?
a)
0.0357 m/s
b)
28 m/s
c)
0.036 m/s
d)
28.0 m/s
31.
A dog runs on the sidewalk 9 mi/hr.
a)
Speed
b)
Acceleration
c)
Velocity
32.
Describe the speed of the object from
2-5 seconds using the speed vs. time graph.
a)
Increasing speed
b)
Not moving
c)
Decreasing speed
d)
Constant speed
33.
A bicyclist takes a curved, scenic ride through the park going 4.5 m/s.
a)
Speed
b)
Acceleration
c)
Velocity
34.
Calculate the speed of a train that traveled 400 miles in 5 hours.
a)
20 mph
b)
20 m/s
c)
80 mph
d)
80 m/s
35.

Pick all of the following that are velocities.

a)

4 km/s west

b)

5 cm/h south

c)

2 mph

d)

8 cm/year

e)

5 m/s up

36.
mph is a unit for ... 
a)
Speed
b)
Distance
c)
Time
d)
Direction
37.

A lamp sitting on a table.

a)

Balanced Force

b)

Unbalanced Force

38.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
39.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun 
d)
A baseball that has been thrown to home plate.
40.

Which of the following statements is true?

a)

Balanced forces cause a change in motion.

b)

Unbalanced forces cause a change in motion.

c)

Forces do not effect the change in motion.

41.
Are forces balanced or unbalanced when a marble rolls down a ramp?
a)
Balanced
b)
Unbalanced
42.
A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?
a)
The cart will speed up.
b)
The cart will slow down.
c)
The cart will move at a constant speed in a straight line.
d)
The cart will fly to never never land!
43.
Are forces balanced or unbalanced when skateboarding down a ramp?
a)
Balanced
b)
Unbalanced
44.
The tendency of an object at rest to stay at rest unless it is acted upon by a force is called ___________________
a)
inertia
b)
motion
c)
gravity
d)
lubricant
45.

These forces are...

a)

Balanced

b)

Unbalanced

46.

Which of the following is an example of an unbalanced force?

a)
b)
c)
d)
47.

Which of the following correctly describes a system with a net force of 0N?

a)

The system would be balanced, therefore the object would move

b)

The system would be balanced, therefore the object would not move

c)

The system would be unbalanced, therefore the object would move

d)

The system would be unbalanced, therefore the object would not move

48.

Currently, both teams have the same force. What could you make the system be unbalanced and have the blue team win? Select all that apply.

a)

Add another person to the blue team to increase the force.

b)

Take another green person away so you can decrease the force of the green team.

c)

Add another person to the blue team to decrease the force/

d)

Take another green person away so that you can increase the force of the green team.

49.
On the Picture the balloon pushes the air right. What is the second force in this interaction pair?
a)
The air pulls the ball left
b)
Gravity pulls the balloon down
c)
The air pushes the balloon left.
d)
The air pulls the balloon right.
50.
(T or F?) A balanced force is only an object that is not moving. 
a)
True 
b)
False
51.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
52.
A ____________ is a push or a pull on an object.
a)
friction
b)
force
c)
magnet
d)
gravity
53.
___________ is the amount of matter in an object.
a)
mass
b)
weight
c)
volume
d)
force
54.

Which of the answer choices is not an characteristic of a balanced force?

a)

no change in motion

b)

moving at a constant speed

c)

net force of zero

d)

causes a change in motion

55.

What will causes an object to move?

a)

unbalanced forces

b)

balanced forces

c)

net force

d)

potential energy

56.

Every answer choice is a characteristic of a unbalanced force, Except-

a)

moving at a constant speed

b)

causes a change in motion

c)

adding of the forces

d)

subtracting of the forces

57.

States that force equals mass x acceleration

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

58.

Claims if an object exerts a force on another object, the second object exerts a force of equal strenght in the opposite direction back towards the first object

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

59.

States an object at rest will remain at rest unless acted on by an unbalanced force

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

60.

An object moving at a constant velocity will continue moving at a constant velocity unless acted upon by an unbalanced force applies to this law

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

61.

The swing of a hammer drives a nail partially into a piece of lumber until it comes to a rest. The lumber exerts an opposite force of resistance.

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

62.

A squid ejects water backward, and the water pushes back, causing the squid to propel forward.

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

63.

A 1,000-kg truck barrels down a highway at 24 m/s2 with a force of 24,000 N.

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

64.

A tossed paper airplane glides forward until a gust of wind blows it sideways.

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

65.

A trampoline pad launches a child upwards with a force equal to the downward force of the landing the moment before.

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

66.

When the force of an object remains constant, then an increase in mass corresponds with a decrease in acceleration.

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rd law

67.

The amount of matter in an object in the object's ________.

a)

Inertia

b)

Weight

c)

Mass

d)

Density

68.

Figure skaters A and B both apply the same amount of force to skate forward. If figure skater B has faster acceleration, is her mass less than that of figure skater A?

a)

Yes

b)

No

69.

A white pool cue ball strikes a striped billiard ball at rest with a speed of 5 m/s. How fast does the striped billiards ball move, and in what direction?

a)

5 m/s2 forward

b)

5 m/s2 backward

c)

5 m/s forward

d)

5 m/s backward

70.

What equation would you use to find the momentum (P) of a 104 kg (m) cheetah that sprints at 3.95 m/s (v)?

a)

P = m x a

b)

P = m x v

c)

M = v x a

d)

V = m x a

71.

What is the acceleration (a) of a 92 kg (m) downhill skier that skis with a force of 118 kg \cdot  m/s2 (F)?

a)

.77 m/s2

b)

1.3 m/s

c)

1.3 m/s2

d)

.77 m/s

72.

in every interaction, there is a pair of forces acting on the two interacting objects.

a)

Friction

b)

Action/Reaction

c)

Net Force

73.

A push or pull exerted on a object

a)

Net force

b)

Force

c)

Inertia

74.

a unit of measure that equals the force required to accelerate 1 kilo of mass at 1 meter per second

a)

Newton

b)

Friction

c)

Action/Reaction

75.

sum of forces acting on a particle or body.

a)

Net force

b)

Balnced

c)

Acceleration

76.

two forces acting in opposite directions on an object, and equal in size

a)

Friction

b)

F=ma

c)

Balanced Force

d)

Friction

77.

one that causes a change in the motion of the object to which the force is applied

a)

Action/Reaction

b)

Unbalanced Force

c)

Acceleration

78.

the action of one surface or object rubbing against another

a)

Force

b)

F=ma

c)

Friction

79.

the rate of change of velocity per unit of time

a)

Acceleration

b)

Balanced Force

c)

Inertia

80.

a tendency to do nothing or to remain unchanged

a)

Inertia

b)

Newtons

c)

F=ma

81.

in every interaction, there is a pair of forces acting on the two interacting objects.

a)

Friction

b)

Action/Reaction

c)

Net Force

82.

Force Mass Acceleration

a)

Force

b)

F=ma

c)

Inertia

83.

an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force

a)

Newtons 1st law

b)

Newtons 3rd law

c)

Newtons 2nd law

84.

the net force acting upon the object and the mass of the object

a)

Newtons 3rd law

b)

Newtons 1st law

c)

Newtons 2nd law

85.

A force is a push or a pull that acts upon an object as a results of its interaction with another object

a)

Newtons 1st law

b)

Newtons 3rd law

c)

Newtons 2nd law

86.

a coherent, typically large body of matter with no definite shape

a)

Force

b)

Mass

c)

Acceleration

87.

the action or process of moving or being moved

a)

Motion

b)

Force

c)

Inertia

88.
a)
Element
b)
Compound
c)
Mixture
89.
a)
Element
b)
Compound
c)
Mixture
90.
a)
Element
b)
Compound
c)
Mixture
91.
a)
Element
b)
Compound
c)
Mixture
92.
a)
Element
b)
Compound
c)
Mixture
93.
a)
Element
b)
Compound
c)
Mixture
94.
a)
Element
b)
Compound
c)
Mixture
95.
a)
Element
b)
Compound
c)
Mixture
96.
a)
Element
b)
Compound
c)
Mixture
97.
a)
Element
b)
Compound
c)
Mixture
98.
a)
Element
b)
Compound
c)
Mixture
99.
a)
Element
b)
Compound
c)
Mixture
100.
a)
Element
b)
Compound
c)
Mixture
101.
a)
Element
b)
Compound
c)
Mixture
102.
a)
Element
b)
Compound
c)
Mixture
103.

Elements

a)

are made of two or more types of atoms bonded together

b)

are made of one type of atom

c)

are made of two or more types of molecules

d)

are always individual atoms

104.

Which is the smallest particle of an element that has the same properties as that element?

a)

atom

b)

molecule

c)

compound

d)

chemical

105.

A substance that cannot be broken down further chemically is known as...

a)

an element

b)

a compound

c)

a molecule

d)

a mixture

106.

Which of the following are examples of ELEMENTS? Choose all that are correct.

a)

Oxygen (O)

b)

Water

(H2O)

c)

Flourine

(F)

d)

Lemonade

e)

Sulfur Dioxide (SO2)

107.

Compounds

a)

are made of two or more types of atoms chemically bonded together

b)

are made of one type of atom

c)

are found on the periodic table

d)

can be separated into their individual parts through physical means

108.

Which of the following are examples of compounds? Check all that apply.

a)

Salt

(NaCl)

b)

Salt Water

(NaCl and H2O)

c)

Sugar

(C6H12O6)

d)

Carbon Dioxide

(CO2)

109.

The bonds of compounds can be broken easily because they are not chemically bonded.

a)

True

b)

False

110.

When substances combine chemically...

a)

they form a mixture and their properties change

b)

they form a compound and their properties change

c)

they form a mixture where their properties stay the same

d)

the form a compound where their properties stay the same

111.

Which of the following are examples of Mixtures?

a)

The atmosphere

(N + O + Ar + H2O...)

b)

Carbon Dioxide (CO2)

c)

Oxygen

(O2)

d)

Lemonade

(sugar, lemon juice, water)

e)

Anything on the Periodic Table

112.

Mixtures

a)

are made of two different types of atoms chemically bonded together

b)

Are only liquids

c)

Cannot be separated

d)

Can be separated using physical properties

113.

Pure Substances

a)

Are only made of one type of atom

b)

Have the same properties throughout

c)

Can never be broken down into something simpler

d)

Are only made of molecules

114.

Which of the following are examples of a Pure Substance?

a)

Water

(H2O)

b)

Helium

(He)

c)

Orange Juice

(oranges, water)

d)

Uranium

(Ur)

e)

Sugar

(C6H12O6)

115.

a different way to say Law of Conservation of Matter

a)

Law of Conservation of Volume

b)

Law of Conservation of Energy

c)

Law of Conservation of Mass

d)

Law of Conservation of Environment

116.

fundamental principle that matter cannot be created or destroyed in a closed system

a)

Law of Conservation of Energy

b)

Law of Conservation of Matter

c)

Law of Conservation of Environment

d)

Law of Conservation of Volume

117.

two or more atoms held together by covalent bonds

a)

molecule

b)

atom

c)

element

118.

a substance made up of atoms of two or more different elements joined by chemical bonds

a)

molecule

b)

compound

c)

mixture

d)

solution

119.

a process where the molecular structure of a substance changes

a)

chemical formula

b)

chemical equation

c)

chemical reaction

120.

a combination of chemical symbols and numbers to represent a substance

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

121.

a way to describe a chemical reaction using chemical formulas and other symbols

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

122.

number after the atomic symbol in equations that tells us the number of atoms of that element in the molecule

a)

denominator

b)

coefficient

c)

numerator

d)

subscript

123.

number in front of molecules in a chemical equation; tells the number of that molecule involved in the reaction

a)

denominator

b)

coefficient

c)

numerator

d)

subscript

124.

a substance that takes part in and undergoes change during a reaction

a)

coefficient

b)

subscript

c)

reactant

d)

product

125.

a new material formed in a chemical reaction

a)

coefficient

b)

subscript

c)

reactant

d)

product

126.

protons + neutrons

a)

atomic number

b)

atomic mass

c)

electrons

127.

a reaction in which energy is absorbed

a)

exothermic reaction

b)

endothermic reaction

c)

red hot reaction

d)

cool reaction

128.

a reaction that releases energy, usually in the form of heat.

a)

exothermic reaction

b)

endothermic reaction

c)

red hot reaction

d)

cool reaction

129.

The law of conservation of mass states that matter ___________________.

a)

cannot enter into chemical reactions

b)

cannot be created or destroyed

c)

cannot form different substances

d)

cannot be modeled

130.

Chemical formulas are used to represent _________________.

a)

reactions

b)

substances

c)

processes

d)

none of the above

131.

Chemical equations are used to represent _________________.

a)

reactions

b)

substances

c)

processes

d)

none of the above

132.

The small numbers under and to the right of element symbols in a formula are called _________________.

a)

element symbols

b)

exponents

c)

coefficients

d)

subscripts

133.

The large numbers before a chemical formula that are used as multipliers are known as __________________.

a)

element symbols

b)

exponents

c)

coefficients

d)

subscripts

134.

A ___________________ uses chemical formulas, plus signs, and an arrow to represent a chemical reaction

a)

chemical formula

b)

chemical equation

c)

element symbol

d)

inventory

135.

The materials we start with in a reaction are known as __________________.

a)

chemicals

b)

reactants

c)

products

d)

creations

136.

The materials we end with in a reaction are known as __________________.

a)

chemicals

b)

reactants

c)

products

d)

creations

137.

Reactants are found on the _______________ side of the arrow in a chemical equation.

a)

Right

b)

Left

138.

Products are found on the _______________ side of the arrow in a chemical equation.

a)

Right

b)

Left

139.

What is the correct "inventory" for KClO3

a)

K = 1 Cl = 3 O = 3

b)

K = 3 Cl = 3 O = 3

c)

K = 1 Cl = 1 O = 3

d)

K = 1 C = 1 l = 1 O = 3

140.

What is the coefficient in the formula?

a)

2

b)

N

c)

H

d)

3

141.

What is the subscript in the formula?

a)

2

b)

N

c)

H

d)

3

142.

What does the arrow in a chemical equation represent?

a)

created

b)

makes

c)

yields

d)

destroys

143.

This is an example of a ___________________________.

a)

chemical formula

b)

chemical equation

144.

What is the correct "inventory" for 3Al2O4

a)

Al = 6 O = 4

b)

Al = 6 O = 12

c)

Al = 2 O = 4

d)

Al = 3 O = 4

145.

What is the correct "inventory" for 4Ag(NO3)2

a)

Ag = 4 N = 2 O = 6

b)

Ag = 4 N = 4 O = 6

c)

Ag = 4 N = 8 O = 24

d)

Ag = 1 N = 2 O = 6

146.

Solutions that have more OH– ions than H+ ions are

a)

acids

b)

bases

c)

enzymes

d)

neutral

147.

Solutions that have more H+ ions than OH- ions are

a)

acids

b)

bases

c)

enzymes

d)

neutral

148.

Which of the following is the strongest acid?

a)

soap - 10

b)

HCL - 0

c)

blood - 7.45

d)

soft drink - 3

149.

Which of the following is the strongest base?

a)

soap - 10

b)

HCL - 0

c)

blood - 7.45

d)

soft drink - 3

150.

Which of these pH values represent an acid?

a)

4

b)

8

c)

10

d)

12

151.

Milk is a very weak acid. What might its pH value be?

a)

6.5

b)

7.8

c)

4.2

d)

12.2

152.

When acids react with metals, they produce hydrogen gas and salt.

a)

True

b)

False

153.

Which of the following are properties of acids?

a)

They conduct electricity when dissolved in water

b)

They taste sour

c)

They react with metals to produce hydrogen gas

d)

All of the answer choices are correct

154.

Which of the following is an acid?

a)

vinegar

b)

bleach

c)

sugar in water

d)

starch in water

e)

toothpaste in water

155.

The pH value of an acid represents its __________ of positive ions in the solution

a)

amount

b)

concentration

c)

color

d)

charge

156.

Which of the following is a property of a base?

a)

bitter taste

b)

reacts with metals

c)

salty

d)

sour taste

157.

Bases have many uses. They are mainly used to make

a)

cleaning products

b)

soaps

c)

concrete

d)

all of the answer choices

158.

Bases turn blue litmus paper red.

a)

True

b)

False

159.
Turns litmus red
a)
Acids
b)
Bases
c)
All
160.
Which has a slippery texture?
a)
Acid
b)
Base
161.

Surface tension is the property of water in which...

a)

water molecules at the surface tend to stick together.

b)

water spills easily.

c)

water tends to be see-through.

162.

Refer to the picture of water sticking to a leaf; this is occurring because of:

a)

Adhesion

b)

Cohesion

163.

Describe COHESION.

a)

Water molecules attracted to other substances.

b)

Water molecules climbing upwards against the force of gravity.

c)

Water molecules dissolving many substances because of its polarity.

d)

Water molecules attracted to other water molecules.

164.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
165.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
166.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
167.
tendency of molecules of the same kind to stick to one another
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
168.
molecule in which opposite ends have opposite electric charges
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
169.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
170.
Water droplets take a spherical shape (as pictured) because of ____________
a)
adhesion
b)
cohesion
c)
capillary action
d)
solubility
171.
Water beads up on the surface of a penny because of this property.
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
172.
Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?
a)
adhesion
b)
surface tension
c)
solvent properties
d)
nonpolar
173.

Water's ability to stick to glass is

a)

adhesion

b)

cohesion

c)

surface tention

d)

capillary action

174.
What is adhesion?
a)
Water's ability to stick to itself
b)
Water's ability to stick to other substances
c)
The strength of the cohesion of all the water molecules combined
d)
Tape, glue and other adhesives
175.
What is the gaseous form of water called?
a)
Steam
b)
Water vapor
c)
Vapor
d)
Water mist