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6th Grade MIDTERM Review

Total questions: 125

Worksheet time: 4hrs 57mins

Name
Class
Date
1.

What is the smallest unit of an element that has all of the properties of that element?

a)

Molecule

b)

Atom

c)

Compound

d)

Mixture

2.

What is the temperature at which a substance changes from liquid to gas?

a)

Melting Point

b)

Freezing Point

c)

Boiling Point

d)

Sublimation Point

3.

What is a shorthand notation that uses chemical symbols and numbers as subscripts to represent the type of atoms and number of atoms that are present in the smallest unit of the substance?

a)

Chemical Formula

b)

Chemical Equation

c)

Chemical Symbol

d)

Chemical Reaction

4.

What is matter that is composed of two or more elements that are chemically combined?

a)

Element

b)

Mixture

c)

Compound

d)

Solution

5.

What is the amount of mass in a given amount of space, measured in a unit of mass per unit of volume?

a)

Mass

b)

Volume

c)

Density

d)

Weight

6.

What is a pure substance that cannot be separated into simpler substances by physical or chemical means?

a)

Mixture

b)

Compound

c)

Element

d)

Solution

7.

What type of mixture has parts that are easy to see and separate?

a)

Homogeneous Mixture

b)

Heterogeneous Mixture

c)

Solution

d)

Colloid

8.

What is a substance so evenly mixed that it is difficult to see the parts and is uniform in composition?

a)

Heterogeneous Mixture

b)

Homogeneous Mixture

c)

Suspension

d)

Colloid

9.

What is the temperature at which a substance changes from solid to liquid?

a)

Boiling Point

b)

Freezing Point

c)

Melting Point

d)

Sublimation Point

10.

What is made of two or more substances that are combined but whose atoms are not chemically bonded?

a)

Compound

b)

Element

c)

Mixture

d)

Solution

11.

What is an arrangement of the elements according to their atomic numbers and periodic trends of physical and chemical properties?

a)

Chemical Formula

b)

Periodic Table

c)

Element Chart

d)

Atomic Structure

12.

What is a characteristic of a substance that can be observed or measured without changing the identity of the substance?

a)

Chemical Property

b)

Physical Property

c)

Density

d)

Mass

13.

What consists of just one type of particle and has the same physical properties throughout?

a)

Mixture

b)

Compound

c)

Element

d)

Pure Substance

14.

What is the amount of matter in a given space or volume; a relationship between mass and volume (Formula: D = M/V)?

a)

Mass

b)

Volume

c)

Density

d)

Weight

15.

What is the amount of matter a body contains?

a)

Volume

b)

Density

c)

Mass

d)

Weight

16.

Select all of the following images that show a physical change:

a)

broken pencil

b)

broken egg shell

c)

cut paper

d)

rusty nail

e)

color change

17.

Gravitational Force is

a)

A contact force that resists the motion of two objects that are touching

b)

A force that acts between objects that are electrically charged

c)

The force of attraction or repulsion between unlike or like poles

d)

A force of attraction between any two objects in the universe

18.

This image represents the field lines of electrical charges that will

a)

Attract

b)

Repel

19.

As distance between two objects DECREASES, the gravitational force between them

a)

Decreases

b)

Stays the same

c)

Ceases to exist

d)

Increases

20.

Frictional Force

a)

Contact Force

b)

Non-Contact Force

21.

What is the definition of balanced forces?

a)

Forces that are unequal in size and opposite in direction

b)

Forces that are equal in size and opposite in direction, resulting in no change in an object's motion.

c)

Forces that are equal in size and same in direction

d)

Forces that are unbalanced in size and direction

22.

Give an example of unbalanced forces in action.

a)

A person pushing a shopping cart with a constant force.

b)

A car accelerating forward while the brakes are being applied.

c)

A book resting on a table.

d)

A car moving at a constant speed on a straight road.

23.

How do balanced forces impact the overall movement of an object?

a)

Balanced forces make the object move in a circular path.

b)

Balanced forces do not change the object's state of motion.

c)

Balanced forces cause the object to accelerate indefinitely.

d)

Balanced forces result in the object changing direction constantly.

24.

Which of the following indicate unbalanced forces acting on an object?

a)

When the net force is zero.

b)

When the object is moving at a constant speed.

c)

When the object is at rest.

d)

When the net force acting on the object is not zero.

25.

What happens to an object when the forces acting on it are balanced?

a)

The object accelerates

b)

The object disappears

c)

The object changes color

d)

The object remains at rest or continues moving at a constant velocity.

26.

Can unbalanced forces ever result in an object remaining at rest?

a)

Yes

b)

No

27.

You and your dad are pushing the couch. Your dad pushes with 35 N right and you push with 25 N right. What is the net force on the couch?

a)

60 N Right

b)

50 N Right

c)

10 N Right

d)

60 N Left

28.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
29.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
30.

In a tug of war the one side pulls with a force of 200N Left. The other team pulls with a force of 150N Right. What is the net force?

a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
31.

Two forces that act in opposite directions on an object and cause no change in motion are called?

a)

Force

b)

Balanced Force

c)

Unbalanced Force

d)

Inertia

32.

A book sitting on a shelf.

a)

Balanced Force

b)

Unbalanced Force

33.

Cars in a NASCAR race speeding around the track.

a)

Balanced Force

b)

Unbalanced Force

34.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
35.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
36.
Calculate the Net Force. 
a)

60 N Right

b)
40N, Right 
c)
0N
d)
60N, Right
37.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
38.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
39.

The sum and overall direction of all forces acting on an object

a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
40.
Are the forces acting on the rope balanced or unbalanced?
a)
Balanced
b)
Unbalanced
41.

What is the definition of unbalanced forces?

a)

Forces that are equal in size and opposite in direction

b)

Forces that are not equal in size and same in direction

c)

Forces that are not equal in size and opposite in direction

d)

Forces that are not equal in size and random in direction

42.

How do balanced forces affect an object?

a)

They cause the object to slow down

b)

They cause the object to change direction

c)

They cause the object to speed up

d)

They do not cause any change in the object's motion.

43.

A soccer ball kicked down the field is:

a)

a balanced force

b)

an unbalanced force

c)

0 Newtons

d)

traveling at a constant speed

44.

___________ forces always cause an object's motion to change.

a)

balanced

b)

unbalanced

c)

contact

d)

non-contact

45.

What is the force that pulls objects toward the center of the Earth?

a)

Friction

b)

Gravity

c)

Magnetism

d)

Normal force

46.

Which of the following is an example of friction in everyday life?

a)

A magnet sticking to a refrigerator

b)

A book sliding across a table and stopping

c)

A ball falling to the ground

d)

A car accelerating on a highway

47.

Which force is responsible for keeping a book at rest on a table?

a)

Gravity

b)

Friction

c)

Normal force

d)

Magnetism

48.

Which of the following surfaces would likely have the least friction?

a)

Sandpaper

b)

Ice

c)

Carpet

d)

Grass

49.

If an object is in free fall, what forces are acting on it?

a)

Only gravity

b)

Gravity and friction

c)

Gravity and normal force

d)

Gravity and magnetism

50.

What is another term for a normal force?

a)

abnormal force

b)

reaction force

c)

applied force

d)

gravity

51.
The force that pulls objects towards each other.
a)
gravity
b)
friction
c)
mass
d)
weight
52.
Two factors that affect gravity
a)
mass and distance
b)
types of surfaces and how hard they are pushed together
c)
force and distance
d)
mass and direction
53.
 What is the unit that measures force?
a)
Weight
b)
Net force
c)
Newton
d)
Kilogram
54.
As mass increases, what happens to the gravitational force?
a)
It increases.
b)
It decreases.
c)
It stays the same.
d)
It acts as a 3rd degree derivative function.
55.

How do you find the net force of this image.

a)

Add up all the arrows

b)

Add a green arrow and the orange arrow.

c)

Subtract all the arrows.

d)

Add the green arrows and subtract the orange arrow.

56.

Is the Net Force balanced or Unbalanced?

a)

Balanced

b)

Unbalanced

57.

If a person is picking up a book with the force of 50 N and the gravity is pushing down with 15 N, what is the net force?

a)

50 N

b)

35 N

c)

65 N

d)

15 N

58.
Which one is balanced?
a)
top
b)
bottom
c)
both
59.
Find the net force: 15 N to the right, and another 15 newtons to the right.
a)
0 N Right
b)
0 N Left
c)
30 N Left
d)
30 N Right
60.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
61.

What force is acting from the surface of the desk onto the laptop resting on the surface?

a)

magnetic

b)

electric

c)

normal

62.

An object moves when unbalanced forces act on the object.

a)

True

b)

False

63.

When an action force occurs, there is always a reaction force. Which of the following TWO terms describe the reaction force?

a)

stronger

b)

downward

c)

opposite

d)

weaker

e)

equal

64.

When a baseball player catches a ball, the ball pushes towards the glove; this is the action force. What is the reaction force?

a)

The reaction force is the glove pushing back on the ball with a stronger force.

b)

The reaction force is the glove pulling back on the ball with an equal force.

c)

The reaction force is the glove pushing back on the ball with an equal force.

d)

The reaction force is the ball pushing away from the glove with an equal force.

65.

When a baseball bat hits a baseball, how does the force of the baseball hitting the bat compare to the force of the bat hitting the baseball?

a)

The bat hitting the ball is a greater force than the ball hitting the bat

b)

The bat hitting the ball is a weaker force than the ball hitting the bat

c)

The bat hitting the ball is equal to the force of the ball hitting the bat

d)

The bat hitting the ball is the only force in this situation

66.

This image illustrates Newton's third law. Why are the two arrows the same length?

a)

Because the forces are EQUAL

b)

Because the forces are weak

c)

Because the forces are strong

d)

Because it looks nicer that way

67.

This image illustrates Newton's third law. Why are the two arrows going in different directions?

a)

Because the forces are pushing

b)

Because the forces are opposite

c)

Because the forces are pulling

d)

Because it looks nicer that way

68.

Arrows are often used to show the strength and direction of forces. Which of the following pairs of arrows shows equal and opposite forces?

a)

A

b)

B

c)

C

d)

D

69.

The ability of a system to do work is...

a)

friction

b)

energy

c)

gravity

d)

creativity

70.

Energy that is stored in a system or object is called...

a)

Kinetic Energy

b)

Thermal Energy

c)

Electrical Energy

d)

Potential Energy

71.

Energy of motion is called...

a)

Kinetic Energy

b)

Electrical Energy

c)

Potential Energy

d)

Thermal Energy

72.

A change of energy from one form to another is called...

a)

Kinetic Energy

b)

Energy Transformation

c)

Potential Energy

d)

Energy Change

73.

A group of interacting or interdependent elements forming a complex whole, as in all the factors or variables in an environment, or all the variables that might affect a science experiment.

a)

Community

b)

Energy

c)

System

d)

Force

74.

All of the potential and kinetic energy within a specific system.

a)

Total Energy

b)

Net Force

c)

Work

d)

Speed

75.

A unit used to measure energy.

a)

Farenheit

b)

Celsius

c)

Amp

d)

Joule

76.

When would a skateboarder have the most potential energy?

a)

While rolling down the ramp

b)

While moving up the ramp

c)

At the bottom of the ramp

d)

At the top of the ramp

77.

Investigating which of the following questions would involve kinetic energy?

a)

What is the effect of a boat’s shape on its speed?

b)

Do boats float higher in salt or fresh water?

c)

How does the color of a boat affect heat absorption?

d)

What material makes the strongest boat?

78.

The image here shows four soccer balls at four different locations on an uneven soccer field very near sea level.


Which soccer ball has the greatest amount of potential energy?

a)

Ball A

b)

Ball B

c)

Ball C

d)

Ball D

79.

A diagram of a pendulum is shown above. The pendulum is released from Position 1. At which two positions will the pendulum’s potential equal its kinetic energy?

a)

1 and 2

b)

2 and 4

c)

3 and 4

d)

4 and 5

80.

Students conducted an experiment by stretching the same rubber band to various lengths, releasing it, and measuring how far it traveled.


Based on the chart, what conclusion can be drawn?

a)

The more mass that a rubber band has, the more difficult it is to move.

b)

The shorter the length of a rubber band, the less energy can be stored in it.

c)

The more potential energy put into a rubber band, the more kinetic energy released.

d)

The farther a rubber band travels, the less it can be stretched later on.

81.

Students conduct a laboratory investigation by rolling a toy car across a 2-meter table top. The students conduct three trials and record data in the table. What is the average speed of the toy car?

a)

4.5 m/s

b)

18 m/s

c)

0.18 m/s

d)

16.5 m/s

82.

A student constructs a table of distances and times. Using the data, which section of the table represents the highest average speed?

a)

Section A

b)

Section B

c)

Section C

d)

Section F

83.

A car uses 57 liters of gasoline for every 644 kilometers traveled. It takes 8 hours to use all the gasoline in the tank. What is the average speed of the car during the trip?

a)

11.3 km/h

b)

80.5 km/h

c)

7.125 km/h

d)

456 km/h

84.

A train travels 800 kilometers in 6 hours. What is the average speed of the train?

a)

150 km/h

b)

133 km/h

c)

806 km/h

d)

4,800 km/h

85.

A train travels at a speed of 70 kilometers per hour for 3 hours, and a car travels 80 kilometers per hour for 2 hours. Which of the two vehicles travels farther?

a)

The car travels farther because it travels 210 kilometers

b)

The train travels farther because it travels 160 kilometers

c)

The car travels farther because it travels at a faster speed

d)

The train travels farther because it travels 210 kilometers

86.

A man travels 25 kilometers in 15 minutes. A police officer stops him and writes a ticket for speeding. The posted speed limit is 80 kilometers per hour. Did the man exceed the posted speed limit?

a)

No, he was traveling at a speed of 25 km/h

b)

No, he was traveling at a speed less than 80 km/h

c)

Yes, he was traveling at a speed of 100 km/h

d)

Yes, traveling at a speed of 80 km/h is too fast for travel safety

87.

Four students take turns kicking a soccer ball. They record the distance the ball rolls and the amount of time it takes the ball to completely stop. Which student kicks the ball with the greatest average speed?

a)

Student 1

b)

Student 2

c)

Student 3

d)

Student 4

88.

A boy on a bicycle travels at a speed of 30 kilometers per hour. How many kilometers will he have traveled when he is 0.20 hours away from his starting point?

a)

6 km

b)

12 km

c)

30 km

d)

60 km

89.

A ball traveled 8 meters in 10 seconds. What is the average speed of the ball?

a)

0.8

b)

1.25

c)

80

d)

18

90.

A family drove several hours to visit a theme park. Their travel progress is charted. What was the average speed in kilometers per hour?

a)

50

b)

0.02

c)

1,250

d)

0.2

91.

what season is the southern hemisphere experiencing at position K.

a)

winter

b)

fall

c)

summer

d)

spring

92.

Alaska is in the northern part of North America. According to the diagram, which season is Alaska experiencing?

a)

Winter

b)

Spring

c)

Summer

d)

Fall

93.

We experience summer when the part of Earth we are living on ______________ the Sun.

a)

tilts away

b)

tilts toward

c)

rotates away

d)

rotates toward

94.

Which season is taking place in the Northern Hemisphere in Position 1?

a)

Winter

b)

Spring

c)

Summer

d)

Fall

95.

The earth is a tilted planet.  What is the degree of tilt?

a)

Approximately 25 degrees

b)

Exactly 25 degrees

c)

23.5 degrees

d)

90 degrees with respect to the sun

96.

How does Earth's axial tilt affect the seasons?

a)

It causes the Earth to rotate faster.

b)

It changes the distance between the Earth and the Sun.

c)

It causes different parts of Earth to receive varying amounts of sunlight throughout the year.

d)

It affects the gravitational pull of the Moon.

97.

What happens to the length of days and nights when the Northern Hemisphere is tilted away from the Sun?

a)

Days are longer than nights.

b)

Days and nights are of equal length.

c)

Nights are longer than days.

d)

There is no change in the length of days and nights.

98.

What is the primary reason for the occurrence of different seasons on Earth?

a)

The Earth's distance from the Sun changes significantly.

b)

The Earth's axial tilt.

c)

The Earth's rotation speed.

d)

The Earth's orbit is a perfect circle.

99.

If the Earth's axial tilt were to increase, what would likely happen to the seasons?

a)

Seasons would become less distinct.

b)

Seasons would become more extreme.

c)

There would be no change in the seasons.

d)

Seasons would disappear completely.

100.

What would happen if the Earth had no tilt? (1-2 sentences)

4 lines
101.

If it is Summer in the Northern Hemisphere, then it is __________ in the Southern Hemisphere.

a)

Summer

b)

Winter

c)

Fall

d)

Spring

102.

If it is Winter in the Northern Hemisphere, then it is ___________ in the Southern Hemisphere.

a)

Summer

b)

Winter

c)

Fall

d)

Spring

103.

If it is Fall in the Northern Hemisphere, then it is ___________ in the Southern Hemisphere.

a)

Summer

b)

Winter

c)

Fall

d)

Spring

104.

If it is Spring in the Northern Hemisphere, then it is __________ in the Southern Hemisphere.

a)

Summer

b)

Winter

c)

Fall

d)

Spring

105.
One rotation of Earth is equal to
a)
a day.
b)
a year.
106.
Why do globes lean sideways?
a)
To allow them to spin easier.
b)
To demonstrate the tilt of Earth's axis.
c)
To demonstrate the effects of gravity.
d)
To demonstrate day and night.
107.
Which body has the greater effect on Earth's tides?
a)
Sun
b)
Saturn
c)
Moon 
d)
Venus
108.

Wha type of tide would this arrangement of earth-moon-sun create?

a)

full moon tide

b)

new moon tide

c)

neap tide

d)

spring tide

109.
What type of tides would this arrangement of earth-moon-sun create?
a)
neap tide
b)
spring tide
c)
new moon tide
d)
full moon tide
110.
Tides are caused by
a)
strong winds that blow over ocean waters.
b)
the interaction of Earth, the moon and the sun.
c)
the shifting of the plates on the ocean floor.
d)
variations in the salinity of ocean water
111.
What causes tides?
a)
gravity
b)
wind
c)
spring
d)
neap
112.
If tides alternate from high to low and there are two of each type of tide a day, about how many hours will generally be between each different tide?
a)
2 hours
b)
6 hours
c)
12 hours
d)
24 hours
113.
How many low tides and high tides happen in a day?
a)
1 low tide, 1 high tide
b)
4 low tides, 4 high tides
c)
3 low tides, 3 high tides
d)
2 low tides, 2 high tides
114.
The bulge of water on the side of the Earth closest to the moon produces ___________.
a)
high tide
b)
low tide
c)
neap tide
d)
spring tide
115.

What is the tide that occurs during a first quarter and a third quarter moon?

a)

neap tide

b)

low tide

c)

spring tide

d)

high tide

116.

Neap tides are the ________ tides.

a)

strongest

b)

weakest

117.

What is the tide that occurs during a full moon and a new moon.

a)

spring tide

b)

low tide

c)

high tide

d)

neap tide

118.

What is the rise and fall of the level of the water in the ocean?

a)

tides

b)

waves

c)

tsunamis

d)

hurricanes

119.

The figure below illustrates ocean water levels in a location on the Florida coast.

What is the tidal range in this location?

a)

–1 m

b)

0 m

c)

+1 m

d)

2 m

120.

During which if these moon phases are we going to see the strongest tide?

a)

full moon

b)

3rd quarter

c)

waxing crescent

d)

waning gibbous

121.

The moon is mainly responsible for the tides on Earth because it is _________ _________.

a)

much closer

b)

far away

c)

behind the sun

122.

The tidal bulge follows the movement of the _____.

a)

moon

b)

sun

c)

Earth

d)

ocean

123.

The _____ _____ is the difference between the levels of ocean water at high tides and low tides. That range depends on the sun-Earth-moon;s position.

a)

ocean waves

b)

mountain level

c)

sea level

d)

tidal range

124.

Which of the following images shows revolution or orbiting?

a)
b)
c)
d)
125.

Which direction does the moon revolve around Earth?

a)

Clockwise

b)

Counterclockwise

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