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Semester 1 Final Review- Chemistry, Physics and Thermal Energy

Total questions: 81

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

Segment O-A The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

2.

Segment A-B The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

3.

Segment B-C The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

4.

Segment C-D The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

5.

Segment D-E The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

6.

Segment E-F The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

7.

Calculate Albert's average speed for the 100-meter race.

a)

8.33 m/s

b)

5 m/s

c)

7.14 m/s

d)

5.88 m/s

8.
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
9.
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
10.
Total distance divided by total time is
a)
average speed
b)
constant speed
c)
instantaneous speed
d)
acceleration
11.
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
12.
What is the person doing from 5 seconds to 10 seconds?
a)
Walking 
b)
Running
c)
Standing Still 
d)
Walking Fast
13.
What is the speed of the red line?  
a)
4 m/s 
b)
16 m/s 
c)
32 m/s 
d)
2 m/s 
14.

Newton's 1st Law is also called the Law of ...

a)

Friction

b)

Inertia

c)

Unbalanced forces

d)

Newtons

15.
An object in motion tends to stay in motion unless an ___ force acts on it.
a)
unbalanced
b)
balanced
16.
The tendency of an object to resist a change in motion is...
a)
inertia
b)
kinetic energy
c)
vector
d)
net force
17.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
18.
The law of inertia (Newton’s First Law) applies
a)
to both moving and nonmoving objects
b)
only to moving objects
c)
only to objects that are not moving
19.

Because of inertia, a moving object will keep ________ unless acted on by an unbalanced force.

a)

at rest

b)

moving

c)

in one spot

d)

inertia

20.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia 
21.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
22.
You push on a car and it does not move.  What is true about the inertia?
a)
The inertia is changing
b)
The inertia of the car is too great 
c)
The inertia of the person is equal to the car
d)
There is not inertia because of no movement
23.
One object has twice as much mass as another object. The first object also has also twice as much...
a)
velocity
b)
gracitational acceleration
c)
inertia
d)
all of these
24.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
25.

What is the net force acting on this box?

a)

16N to the right

b)

4N to the left

c)

0N

d)

8N to the left

26.
What pulls a ball back to earth?
a)
Gas
b)
Friction
c)
Gravity
d)
Molecules
27.
If these boys 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.
28.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
29.
Which is always a contact force?
a)
electric
b)
friction
c)
magnetic
d)
gravity
30.

Based on the chemical formula, which statement best describes NI₃?

a)

Based on the chemical formula, there are 3 atoms in one molecule of NI₃.

b)

Based on the chemical formula, there are 6 atoms in one molecule of NI₃.

c)

Based on the chemical formula, NI₃ is composed of atoms of the same elements.

d)

Based on the chemical formula, NI₃ is composed of atoms of different elements.

31.

Look at the two images of molecules. Which of the following statements best compares the two images?

a)

Images A and B are both compounds because they have more than one atom.

b)

Image A is a compound because it has different types of atoms, and image B is an element because it has one type of atom.

c)

Image A is an element because it has one type of atom, and image B is a compound because it has different types of atoms.

d)

Images A and B are both elements because they have more than one atom.

32.

Aluminum fluoride is a compound commonly used in ceramics. The chemical formula for aluminum fluoride is AlF₃. The Periodic Table shows the elements used in the compound.

a)

Aluminum fluoride contains 3 atoms of aluminum and 3 atoms of fluorine.

b)

Aluminum fluoride contains 1 atom of aluminum and 1 atom of fluorine.

c)

Aluminum fluoride contains 1 atom of aluminum and 3 atoms of fluorine.

d)

Aluminum fluoride contains 3 atoms of aluminum and 1 atom of fluorine.

33.

Amanda wants to make a cake. She measures sugar, eggs, oil, flour, and flavorings. She mixes the ingredients together with a whisk. She pours the ingredients into a pan and bakes them. When the cake is baked, she frosts the cake.

Which part of making a cake is a chemical change?

a)

Mixing ingredients with a whisk, because the mixed ingredients form a thick liquid.

b)

Adding eggs because the eggs change shape when they are cracked.

c)

Baking the mixed ingredients because the ingredients change into a different substance.

d)

Putting frosting on the baked cake because frosting changes how the cake looks.

34.

Which of these molecules represent compounds? Select all that apply.

a)

H₂O

b)

H₂

c)

CO

d)

CO₂

e)

S₈

35.

Look at the image of a melting popsicle.

Which of the following best explains what happens when a popsicle melts?

a)

It is a physical change because a new substance was made. .

b)

It is a physical change because it can be easily reversed.

c)

It is a chemical change because the properties of the popsicle changed.

d)

It was a chemical change because it cannot be easily reversed

36.

What is the difference between a chemical change and a physical change?

a)

A substance stays the same In a chemical change, but a new substance is formed in a physical change.

b)

After a physical change, a substance cannot change back, but it is easy to reverse a chemical change.

c)

A physical change includes changing state from solid to liquid, but changing from liquid to gas is a chemical change.

d)

A new substance is formed in a chemical change, but the substance stays the same in a physical change.

37.

Look at the image showing how to make fruit punch.

When you make a pitcher of fruit punch from a powdered packet of drink mix, the water changes color.

Is this a physical or chemical change?

a)

Physical Change

b)

Chemical Change

38.

Read each of the statements describing a change.

1. Using a magnet to remove iron shavings from a mixture of sand and iron

2. Melting sugar

3. Lighting fireworks and then seeing the colors and hearing the sound pops as they go off

4. Cutting a piece of paper into smaller pieces

5. Burning firewood in a campfire

Which of these examples describe physical changes?

a)

1 and 4

b)

2, 4, and 5

c)

1, 2, and 4

d)

1, 3, 4, and 5

39.

Which statement best describes an element?

a)

pure, made of more than one type of atom

b)

when combined, a chemical reaction forms

c)

pure, made of only one type of atom

d)

can be broken down easily

40.
Which one has more than one type of atom in it?
a)
Element
b)
Compound 
41.

When two or more different elements chemically combine, a __________________________ is formed.

a)

element

b)

compound

c)

mixture

d)

solution

42.

Helium (He) is an example of an:

a)

Element

b)

Compound

c)

Solution

d)

Mixture

43.

Two or more different elements chemically combine to form compounds.

a)

Agree

b)

Disagree

44.
Which one can be found on the periodic table?
a)
Compound 
b)
Element
45.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
46.

Is melting butter for popcorn a chemical or physical change?

a)

chemical

b)

physical

47.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
48.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
49.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
50.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
51.

When you break a cracker into pieces it is a...

a)

Chemical change

b)

Physical change

52.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
53.
The _____is the part that gets dissolved. 
a)
solute 
b)
solvent 
c)
solution 
d)
Sacajawea 
54.
The universal solvent is ______. 
a)
sodium 
b)
acid 
c)
water 
d)
wind 
55.
When one of the parts of the solution is water we call it _________. 
a)
water stuff 
b)
water mixture 
c)
aqua-man
d)
aqueous 
56.

solute + solvent =

a)

solution

b)

equation

57.
a)

solvent

b)

solution

c)

solute

58.
a)

solvent

b)

solute

59.

Solutes dissolve quicker in _________ water.

a)

cold

b)

warm

60.

Solutes dissolve quicker if you stir them.

a)

true

b)

false

61.

A solution with high amount of solute

a)

concentrated

b)

saturated

c)

unsaturated

d)

diluted

62.

Weak tea is an example of a _______.

a)

suspension

b)

solvent

c)

concentrated solution

d)

dilute solution

63.

What is a solvent?

a)

the substance that is being dissolved in a solution

b)

the mixing of different substances

c)

the substance that does the dissolving in a solution

64.

  1. The image shows two different samples of the same compound, calcium carbonate.

There are two beakers full of water. One sample is added to each beaker. Which of the following options correctly compares the rate of dissolution of the samples?


a)

  1. The calcium carbonate stones will dissolve slowly since they have a lower surface area than the calcium carbonate powder.

b)

  1. The calcium carbonate stones and calcium carbonate powder will dissolve at the same rate since they have the same surface area.

c)

  1. The calcium carbonate stones will dissolve quickly since they have a greater surface area than the calcium carbonate powder.

65.

Which solution is most concentrated?

a)

A

b)

B

c)

C

d)

D

66.

Which solution is most diluted?

a)

A

b)

B

c)

C

d)

D

67.

Which two solutions have the same concentration?

a)

A

b)

B

c)

C

d)

D

68.

  1. To increase the _________ of a solution, a person would dissolve more _________ into the _________.

Which words best complete the sentence?


a)

dilution; solvent; solute

b)

dilution; solute; solvent

c)

concentration; solute; solvent

d)

concentration; solvent; solute

69.

When things get hotter, its molecules are moving faster and have more (a)   .

70.

When a thing gets colder, its molecules are moving slower and have (a)   kinetic energy.

71.

Abby sets up an investigation using cold water and hot water. He puts three drops of red food dye in each tumbler and waits ten seconds. His results are shown below.

How can he describe the relationship between the temperature of the water and the energy of the water molecules in the system?

a)

The lower the temperature of the water, the greater the amount of energy in the system and the faster the water molecules move.

b)

The higher the temperature of the water, the greater amount of energy in the system and the faster the water molecules move.

c)

The higher the temperature of the water, the lower amount of energy in the system and the slower the water molecules move.

d)

The temperature of the water has no effect on the speed of the molecules, so the amount of energy in the system does not change.

72.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

73.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
74.

What type of thermal energy transfer is occurring at point A?

a)

Radiation

b)

Convection

c)

Conduction

d)

None of the above

75.

What type of thermal energy transfer is occurring at point B?

a)

Convection

b)

Conduction

c)

Radiation

d)

Kinetic

76.

What type of thermal energy transfer is occurring at point C?

a)

Convection

b)

Conduction

c)

Radiation

d)

Kinetic

77.

Kinetic Energy is the energy of _________

a)

thermal

b)

movement

c)

potential

d)

atoms

78.
A cup of tea with a temperature of 80 degrees Celsius is placed on a table in a 20 degree Celsius room.  What happens to the thermal energy and the molecular motion of the tea when it is left on the table?
a)
The thermal energy increases and the molecules move faster.
b)
The thermal energy decreases and molecules move more slowly.
c)
The thermal energy increases and the molecules move more slowly.
79.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high. 
80.
Heat transfer in wind.
a)
conduction
b)
convection
c)
radiation
81.
The heat transfer in the image is by
a)
convection
b)
conduction
c)
radiation

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