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1st Semester Exam Review

Total questions: 42

Worksheet time: 3hrs 59mins

Name
Class
Date
1.

A Student drew atomic models of four atomic models. Based on the drawings, which one is the least reactive?

a)

Chlorine, because it has three energy levels with seven electrons in the third level

b)

Gallium, because it has four energy levels with three electrons in the fourth level

c)

Neon, because it has two energy levels with eight electrons in the second level

d)

Tin, because it has five energy levels with four electrons in the fifth level

2.

An atom of which element is represented by this model?

a)

Carbon (C)

b)

Neon (Ne)

c)

Sodium (Na)

d)

Boron (B)

3.

An atom has 11 protons, 12 neutrons, and 11 electrons. What is the identity of the element?

a)

Sodium

b)

Titanium

c)

Vanadium

d)

Magnesium

4.

Elements in the same period/row have the same--

a)

# of valence electrons

b)

# of protons

c)

# of energy shells

d)

# of neutrons

5.

These two subatomic particles contribute to the mass of the atom.

a)

Protons and Electrons

b)

Protons and Neutrons

c)

Electrons and Neutrons

6.

The atoms of a certain element each contain 18 protons and 8 valence electrons.


What is the element's name?

a)

Argon

b)

Krypton

c)

Neon

d)

Sodium

7.

How many protons will the element in Group 7A, Period 4 have?

a)

9

b)

16

c)

34

d)

35

8.

What element has similar properties of Cesium (Cs), but a larger atomic mass?

a)

Magnesium (Mg)

b)

Barium (Ba)

c)

Rubidium (Rb)

d)

Francium (Fr)

9.

Elements in the same group/family--

a)

have the same # of valence

b)

behave the same

c)

have the same # of energy shells

d)

are in the same period

10.

These types of elements are BRITTLE and DO NOT conduct electricity.

a)

Metals

b)

Nonmetals

c)

Metalloids

11.

Hydrogen (H) is a --

a)

Metal

b)

Nonmetal

c)

Metalloid

12.

Which elements have 3 valence electrons?

a)

Scandium

b)

Boron

c)

Aluminum

d)

Lithium

13.
a)

A

b)

B

c)

C

d)

D

14.
Motion is a change in ____. 
a)
position
b)
speed 
c)
velocity
d)
time
15.
3 m/s north is an example of a(n) ____. a.  c.  b.  d. 
a)
acceleration
b)
speed
c)
velocity
d)
position
16.
Acceleration is rate of change of ____. 
a)
position
b)
 time 
c)
 velocity
d)
force
17.
Inertia varies depending on ____. 
a)
mass
b)
motion
c)
force
d)
velocity 
18.
The relationship among mass, force, and acceleration is explained by ____.
a)
Newton's first law of motion
b)
Newton's second law of motion
c)
Newton's third law of motion
d)
conservation of momentum 
19.
According to Newton's second law of motion, ____.
a)
 F = m x v 
b)
F = m x a
c)
F = p x v
d)
F = p x a
20.
For any object, the greater the force that's applied to it, the greater its ____ will be.
a)
acceleration
b)
velocity
c)
gravity 
d)
inertia
21.
When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces. 
a)
frictional
b)
gravitational
c)
action-reaction 
d)
centripetal
22.
The statement "to every action there is an equal and opposite reaction" is ____. 
a)
the law of conservation of momentum
b)
Newton's first law of motion
c)
Newton's second law of motion
d)
Newton's third law of motion
23.
When two balls collide, the momentum of the balls after the collision is explained by ____. 
a)
the law of conservation of momentum
b)
Newton's third law of motion
c)
Newton's second law of motion
d)
Newton's first law of motion
24.
A 300-N force acts on a 25-kg object. The acceleration of the object is ____.
a)
25 m/s2
b)
7,500 m/s2
c)
300 m/s2
d)
12 m/s2
25.
A 3,000-N force acts on a 200-kg object. The acceleration of the object is ____. 
a)
15 m/s2 
b)
150 m/s2
c)
26 m/s2 
d)
50 m/s2 
26.
a)
4N 
b)
6N 
c)
10 N 
d)
14 N 
27.
a)
The cart was stationary with a velocity of 0 m/s for the entire 7 seconds. 
b)
The cart was stationary except for a short burst of acceleration of 0.5 m/s^2 . 
c)
The cart moved at a constant velocity of 0.5 m/s for the entire 7 seconds.
d)
The cart accelerated at a constant rate of approximately 0.8 m/s^2 . 
28.
a)
As the fuel burns, gases push against the rocket, moving it upward. 
b)
As the fuel burns, gases move out of the rocket and reduce air resistance. 
c)
As the fuel burns, the mass of the rocket decreases. 
d)
As the fuel burns, the rocket moves faster. 
29.
a)
Airplane W has a greater kinetic energy than Airplane X. 
b)
The two airplanes have the same gravitational potential energy but different kinetic energies. 
c)
Airplane X has more gravitational potential energy than Airplane W. 
d)
The two airplanes have the same kinetic energy but different gravitational potential energies.
30.
A nonliving element in an ecosystem is an 
a)
animal
b)
abiotic factor
c)
biotic factor
d)
organism
31.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
32.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
33.
Organisms, such as vultures, that feed on dead animals.
a)
Producer
b)
Scavenger
c)
Consumer
d)
Parasite
34.
Struggle between organisms of the same or different species for food, space, light, water, etc.
a)
Interdependence
b)
Natural Selection
c)
Adaptation
d)
Competition
35.
Mutual dependence between organisms in order to help them survive.
a)
Competition
b)
Interdependence
c)
Adaptation
d)
Natural Selection
36.
Using the chart below, what would most likely happen if this specific ocean region was overfished by humans? 
a)
decrease in the amount of algae
b)
increase in the shark population
c)
decrease in the activity of marine worms 
d)
decrease in the available energy from the Sun 
37.
In order for parasites to survive off of their host organism, they will need to be able to: 
a)
reproduce faster than their host
b)
become self-supporting by producing their own energy 
c)
fight off other parasites of their own species
d)
have a symbiotic relationship with their host 
38.
Which of the following statements is NOT true about the organism that completes this food chain? 
a)
It derives its energy directly from the sun. 
b)
It has sharp claws or teeth.
c)
It depends on other animals for energy.
d)
It can move from one place to another. 
39.
Which does not describe a predator/prey behavior? 
a)
Dolphins working in a team to roundup a school of fish. 
b)
An eagle soaring above a field looking for a mouse. 
c)
A polar bear walking on the sea ice searching for a seal. 
d)
A barnacle attaching itself to a whale. 
40.
Every spring, an ecologist records several environmental measures and is looking for a relationship to the deer population in a state park. Using her data below, what generalization can you make? 
a)
The deer population decreases with sudden spikes in temperature. 
b)
Deer are dependent on grass growing with ample rainfall. 
c)
Deer do not adapt well in cooler environments. 
d)
There was significantly more hunting in 2011. 
41.
Conservationists argue that we should not kill every snake we see. What is the reasoning behind this argument? 
a)
Killing snakes will also decrease the population of their natural prey. 
b)
A decrease in the snake population will lead to an increase in more venomous reptiles. 
c)
The population of its natural prey, such as mice and insects, will increase. 
d)
The number of snakes is directly related to the coyote population. 
42.
Why are oil spills a major concern to the ocean ecosystem? 
a)
Oil can coat ocean plants and inhibit their capacity to conduct photosynthesis. 
b)
Oil sticks to the feathers of the birds and hinders their ability to fly. 
c)
Fish that ingest oil can spread the toxin to other sea animals that eat the fish. 
d)
All of the above are concerns of oil spills on ocean ecosystems. 

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