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Benchmark Review 2023

Total questions: 49

Worksheet time: 2hrs 47mins

Name
Class
Date
1.

(8.5A) An atom has 30 protons, 35 neutrons, and 30 electrons. What is the charge of the atom's NUCLEUS?

a)

+35

b)
+30
c)

-35

d)
-30
2.

(8.5A) Which of these best describes ONE of the subatomic particles that could be found at location X in the model of an atom shown above?

a)
It has mass but no charge.
b)
It has no mass and a positive charge.
c)
It has a large mass and a negative charge.
d)
It has no mass and an equal number of positive and negative charges.
3.
(8.5B) When trying to identify an unknown element, a scientist determines what other elements the unknown element reacts with chemically. Which property of the unknown element determines the other elements it reacts with? 
a)
The total number of neutrons in the unknown element.
b)
The total number of particles in the nucleus of the unknown element
c)
The number of protons in the nucleus of the unknown element
d)
The number of valence electrons in the unknown element.
4.

Which two atoms are of elements

in the SAME GROUP in the periodic table?

a)

Atom 1 and Atom 2

b)

Atom 1 and Atom 4

c)

Atom 2 and Atom 3

d)

Atom 3 and Atom 4

5.

(8.5D) The chemical formula for sodium sulfate is Na2SO4. How many sodium atoms are in the formula for sodium sulfate?

a)

1

b)

2

c)

6

d)

7

6.
(8.5B) The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?
a)
The element is sodium, and it is highly reactive.
b)
The element is flourine, and it is not very reactive.
c)
The element is sodium and it is not very reactive
d)
The element is flourine, and it is highly reactive
7.
(8.5B) A chemist is identifying the elements present in a sample of seawater. What characteristic of an element's atoms always determines the element's identity?
a)
The number of protons
b)
The number of neutrons
c)
The location of valence electrons
d)
The number of valence electrons
8.
(8.5C) Which two elements on the periodic table are in the same period?
a)
Sn and Rb
b)
F and Cl
c)
K and Ba
d)
Se and Te
9.

Which element has 2 more energy levels and 3 more valence electrons than Carbon (C)?

a)

Sulfur (S)

b)

Chlorine (Cl)

c)

Bromine (Br)

d)

Tellurium (Te)

10.

Which element has 6 valence electrons and 2 energy levels?

a)

Radium (Ra)

b)

Barium (Ba)

c)

Sulfur (S)

d)

Oxygen (O)

11.

How many energy levels are in Potassium (K)?

a)

1

b)

2

c)

3

d)

4

12.

Which metal listed below is the least reactive alkali metal in group 1?

a)

Hydrogen (H)

b)

Litium (Li)

c)

Sodium (Na)

d)

Francium (Fr)

13.

What catagory of elements is the element with 4 more protons than Copper (Cu)?

a)

Metal

b)

Metalloid

c)

Nonmetal

d)

Gas

14.

Name the nonmetal in Period 5 that is more reactive than Selenium (Se)-

a)

Selenium (Se)

b)

Pollonium (Po)

c)

Iodine (I)

d)

Astatine (At)

15.

How many neutrons are in an atom of Iron with a mass of 56 amu?

a)

26

b)

30

c)

56

d)

82

16.

In what group is this element found?

a)

2A

b)

3A

c)

5A

d)

6A

17.

In what period is this element found?

a)

1

b)

2

c)

3

d)

11

18.

Noble gases are stable and nonreactive because -

a)

they like being last in line

b)

they all have 8 valence electrons.

c)

they all have 8 energy levels.

d)

they all have a full valence energy level

19.

What is significant about the placement of Aluminum on the periodic table?

a)

It is a metal on the metalloid line.

b)

It is a nonmetal on the metalloid line.

c)

It is a metalloid not on the metalloid line.

d)

It is the magnetic metalloid.

20.

Atoms of which two elements have a combined total of 23 protons?

a)

Sodium, Na, and magnesium, Mg

b)

Boron, B, and carbon, C

c)

Copper, Cu, and zinc, Zn

d)

None of these

21.
a)

4 carbon atoms, 11 hydrogen atoms, and 1 oxygen atom

b)

7 carbon atoms, 14 hydrogen atoms, and 1 oxygen atom

c)

7 carbon atoms, 11 hydrogen atoms, and 8 oxygen atoms

d)

6 carbon atoms, 14 hydrogen atoms, and 3 oxygen atoms

22.

What is the mass of H2O in the reaction above?

a)

82.10

b)

33.46

c)

32.46

d)

82.00

23.

In an experiment, 12.6g of NaHCO3 reacts with an unknown amount of H4C2O2 to produce 6.4g of NaH3C2O2 and 11.8g of H2O, and 2.6g of CO2 gas. What was the mass of the acetic acid used in the experiment to show that mass was conserved?

a)

33.4 grams

b)

20.8 grams

c)

8.2 grams

d)

2.8 grams

24.
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
25.
Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?
a)
55km
b)
32km
c)
43km
d)
32miles
26.

What would the distance vs time graph look like for an object travelling at a constant velocity?

a)

Horizontal line

b)

Straight line

c)

Curved line

27.

When was the object at rest?

a)

first 10 seconds

b)

first 20 seconds

c)

20th ~30th seconds

d)

30th~40th seconds

28.
Acceleration is
a)
increasing speed
b)
decreasing speed
c)
changing direction
d)
all of the above
29.
Which has more Inertia? (so need more force to move) 
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
30.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
31.
When the net force is zero, the forces on an object are balanced. True or false.
a)
true
b)
false
32.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
33.

How will this object move?

a)

It will move left at a constant speed.

b)

It will accelerate to the right.

c)

It will accelerate to the left.

d)

It will move right at a constant speed.

34.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
35.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
36.

Unit for Speed

a)

Meter

b)

Second

c)

Meter/Second

d)

Meter/Second2

37.

Unit for Acceleration

a)

Newton

b)

Kilogram

c)

Meter and Vector for direciton

d)

Meter/Second2

38.

Unit for Force

a)

Newton

b)

Kilogram

c)

Meter and Vector for direciton

d)

Meter/Second2

39.

A ball at the top of a hill has ________ ________ because if pushed it will roll down the hill.

a)

Mechanical Force

b)

Unbalanced Energy

c)

Potential Gravitational Energy

d)

Unbalanced Force

40.

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

a)

Balanced

b)

Magnetic

c)

Spring

d)

Unbalanced

41.

Standing still is an example of a ________ ________ since you are not moving forward, backward, or sideways.

a)

negative acceleration

b)

balanced force

c)

unbalanced force

d)

3rd law of motion

42.

What form of energy does a microwave have?

a)

Magnetic

b)

Electromagnetic

c)

Solar

d)

Elastic

43.

You are in a car driving and the breaks are applied, you fly forward, which Law is this?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Newton's 2nd and 3rd law

44.

Which tide would be the highest and lowest?

a)

Tide 1 would be highest

b)

Tide 1 would be lowest

c)

Tide 2 would be lowest

d)

Tide 2 would be highest

45.
What happens to pressure as we move from the crust to the inner core?
a)
Pressure Decreases
b)
Pressure Increases
c)
Nothing
46.

What is continental drift?

a)

Made of igneous rock

b)

Where two plates collide

c)

Theory that all of earths continents were once joined together in a singe, huge land mass and then started drifting away from each other.

d)

The process by which new oceanic crust forms when when magma rises up.

47.

What is pangaea?

a)

Huge supercontinent that existed millions of years ago,

b)

Where two plates slide

c)

Where two plates divide

d)

Where two plates collide

48.

What are Transform Plate Boundaries?

a)

Where two plates divide

b)

Where two plates collide

c)

Where two plates slide

49.

How do tectonic plates move?

a)

Wind

b)

Convection currents

c)

Water

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