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semester study guide 8th

Total questions: 85

Worksheet time: 2hrs 5mins

Name
Class
Date
1.

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

a)

Friction

b)

Inertia

c)

Unbalanced forces

d)

Newtons

2.
An object in motion tends to stay in motion unless an ___ force acts on it.
a)
unbalanced
b)
balanced
3.
The tendency of an object to resist a change in motion is...
a)
inertia
b)
kinetic energy
c)
vector
d)
net force
4.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
5.
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
6.
 What is the unit that measures force?
a)
Weight
b)
Net force
c)
Newton
d)
Kilogram
7.
Which of the following never changes no matter where in the universe?
a)
weight
b)
force
c)
mass
d)
pounds
8.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
9.

If we want to find FORCE which formula would we use?

a)

F = Ka

b)

F = N

c)

F = ma

d)

F = mc2 

10.

What is the unit for mass?

a)

kilogram

b)

Newtons

c)

m/sxs

11.

According to Newton's Second Law HOW would an increase in the acceleration change the FORCE of an object?

a)

The Force would INCREASE

b)

The Force will DECREASE

c)

The Force would STAY THE SAME

d)

The Force would DISAPPEAR

12.

What is the formula for calculating acceleration?

a)

a=F/m

b)

F=ma

c)

a=Fm

d)

F=m/a

13.

Objects move only when a force is exerted.

a)

True

b)

False

14.

If forces are unbalanced, there is an acceleration.

a)

True

b)

False

15.

Acceleration does not depend on the mass being pushed.

a)

True

b)

False

16.

Air resistance is caused by friction between the air and an object moving through the air.

a)

True

b)

False

17.

If the force acting on a cart doubles, what happens to the cart's acceleration?

a)

it quadruples

b)

it doubles

c)

it havles

d)

it quarters

18.

If I apply the same force to a ping pong ball and a bowling ball, which one will accelerate farther and faster?

a)

ping pong ball

b)

bowling ball

c)

I have no idea

19.

What two variables define force?

a)

speed and velocity

b)

mass and acceleration

c)

mass and velocity

d)

distance and time

20.

For this question, refer to the image to the left...

The larger the ___________ of an object, the greater the ____________ needed to change the direction or the speed.

a)

mass / tow truck

b)

suitcases / force

c)

mass / force

d)

windows / force

21.

What causes a jet ski to move forward?

a)

The motor pushes the jet ski forward

b)

The water pushes the jet ski forward

c)

The person pushes the jet ski forward

d)

Gravity pushes the jet ski forward

22.

Why is it easier to stand up if you push something down?

a)

The thing you push down pushes you up

b)

Your arms push your body up

c)

It helps your legs get proper posture

d)

It actually doesn't help, its just a mental thing

23.

Newtons law states that for every action, there is an_________ reaction

a)

unequal and opposite

b)

stronger and opposite

c)

equal and similar

d)

equal and opposite

24.

Force always come in________

a)

waves

b)

triplets

c)

pairs

25.
A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...
a)
The grip of the player's hands on the ball
b)
the air resistance of the ball
c)
the force of the ball against the bat
26.

The blue arrow shows the force of the finger on the wall , the green arrow shows _____________

a)

the force of the wall on the wall

b)

the force of the finger on the finger

c)

the force of the wall on the finger

d)

the force of the finger on the wall

27.

Newton's third law of motion describes equal and opposite forces:

a)

between two objects

b)

acting on a single object

c)

acting only when objects are in contact

d)

between solid objects but not liquids or gases

28.

If you lean against a brick wall, the wall:

a)

pushes back with an equal force

b)

pushes back with a smaller force

c)

pushes back with a greater force

d)

does not push back

29.

Which law is this: Every force has an equal and opposite reaction force.

a)

Newtons First Law

b)

Newtons Second Law

c)

Newtons Third Law

30.

Newtons third law states that for every action, there is an_________ reaction

a)

unequal and opposite

b)

stronger and opposite

c)

equal and similar

d)

equal and opposite

31.

The forces in a force pair are in _______ direction

a)

opposite

b)

same

32.

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

a)

False

b)

True

33.
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
34.
Which of the following is a unit of time?
a)
sec
b)
mi
c)
m/s
d)
km
35.
Which of the following is a unit of speed ?
a)
sec
b)
mi
c)
m/s
d)
min
36.
Which of the following is a unit of distance ?
a)
miles/hr
b)
mi
c)
s
d)
min
37.
Which of the following is a unit of time?
a)
km/hr
b)
hr
c)
km
d)
mi
38.
Identify this simple machine
a)
Lever
b)
Wheel & Axle
c)
Inclined Plane
d)
Screw
39.
Two examples of a pulley...
a)
knife & axe blade
b)
lightbulb & screw
c)
flagpole hoist & window blinds
d)
catapult & teeter totter
40.
A seesaw is an example of a  
a)
wedge
b)
lever 
c)
inclined plane 
d)
pulley 
41.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
42.
The transfer of energy that occurs when a force makes an object move is known as 
a)
effort
b)
potential 
c)
kinetic 
d)
work 
43.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.  
a)
wedge
b)
screw
c)
lever
d)
inclined plane 
44.

What simple machine is a slanted flat surface that helps move an object from a high position to a low position OR a low position to a high position?

a)

pulley

b)

lever

c)

screw

d)

inclined plane

e)

wedge

45.

The fixed point around which a lever rotates is know as the

a)

wheel.

b)

fulcrum.

c)

input force.

d)

output force.

46.

Workers push a heavy box up an inclined plane and onto a moving truck. Which best explains why these workers use an inclined plane?

a)

It makes their work easier because it requires less effort.

b)

It decreases the amount of work they have to do.

c)

It increases the amount of friction necessary to do the task.

d)

It makes the box weigh less.

47.
Where does transcription take place?
a)
nucleus
b)
ribosome
c)
cytoplasm
d)
smooth ER
48.
The anticodon is located on 
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
49.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
50.
What is the complimentary mRNA sequence to the DNA sequence A-T-T-G-C-A.
a)
T-A-A-C-G-T
b)
U-A-A-C-G-T
c)
U-A-A-C-G-U
d)
T-A-A-G-C-U
51.
DNA has a ______ strand; RNA has a ______ strand.
a)
double/double
b)
double/triple
c)
double/single
d)
single/single
52.
In RNA, the nitrogen base____ replaces ____ that was present in DNA. 
a)
A, U (adenine, uracil)
b)
C, G (cytosine, guanine)
c)
U, T (uracil, thymine)
d)
U, A (uracil, adenine)
53.
Translation occurs in the
a)
nucleus
b)
mitochondria
c)
cytoplasm
d)
golgi apparatus
54.

In the process of transcription...

a)

DNA becomes a protein

b)

DNA becomes mRNA

c)

mRNA becomes a protein

d)

mRNA becomes DNA

55.
What is the sugar in RNA?
a)
glucose
b)
ribose
c)
fructose
d)
lactose
56.

What is this structure called

a)

Double Helix

b)

Double Felix

c)

Two Cats

d)

Single Strand

57.

mRNA:

a)

Sends text messages

b)

Is at the ribosome

c)

Is the messenger RNA

58.

Name this structure.

a)

Base

b)

Nucleotide

c)

Sugar

d)

DNA

59.

This process is called:

a)

Translation

b)

Transcription

c)

DNA Replication

60.

Transcription goes from:

a)

DNA to DNA

b)

DNA to Protein

c)

DNA to RNA

d)

None of the above

61.

Name the bases of DNA.

a)

Guanine and Cytosine

b)

Adenine

c)

Adenine, Thymine, Guanine, Cytosine

d)

Adenine, Uracil, Guanine, Cytosine

62.

Name the bases of RNA.

a)

Guanine and Cytosine

b)

Adenine

c)

Adenine, Thymine, Guanine, Cytosine

d)

Adenine, Uracil, Guanine, Cytosine

63.

Replicate the DNA:

A T C - G A G - C T G

a)

T A G - C T C - G A C

b)

A T C - G A G - C T G

c)

U A G - C U C - G A C

64.

Transcribe the DNA to RNA:

G A C - C T A - A G T

a)

G A C - C T A - A G T

b)

C U G - G A U - U C A

c)

C T G - G A T- T C A

65.

What protein is UCC

a)

Ser

b)

STOP

c)

Thr

d)

Tyr

66.

What protein is AAC

a)

Ser

b)

STOP

c)

Asn

d)

Lys

67.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
68.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
69.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
70.
Structure B is pointing to the _____. 
a)
chromosome
b)
centromere
c)
DNA
d)
chromatid
71.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
72.

What pulls the chromosomes apart?

a)

Spinner wheels

b)

Spiral windows

c)

Spindle fibers

d)

Spiral fibers

73.
Which structures are indicated by the green arrows?
a)
sister chromatids
b)
chromosomes
c)
spindle fibers
d)
centrioles
74.

WHAT DOES MEIOSIS CREATE?

a)

CHROMOSOMES

b)

GAMETES

c)

DNA

d)

TRAITS

75.

MEIOSIS IS NEEDED BECAUSE...

a)

IT ACTUALLY ISN'T, BUT CAN BE HELPFUL IN SOME ORGANISMS

b)

TO REDUCE THE CHROMOSOME NUMBER BY HALF

c)

SO THAT EVERY CELL IS EXACTLY IDENTICAL

d)

TO MAKE SURE EVERY HUMAN CELL HAS 92 CHROMOSOMES

76.

THE STRUCTURE THAT CONTAINS THE DNA IS CALLED (CHOOSE THE MOST SPECIFIC ANSWER)

a)

CHROMOSOME

b)

CELL BODY

c)

CELL

d)

NUCLEUS

77.

MALE GAMETE IS KNOWN AS

a)

EGG

b)

SPERM

78.

A FEMALE GAMETE IS KNOWN AS

a)

EGG

b)

SPERM

79.

HOW MANY CHROMOSOMES DO HUMAN GAMETES HAVE?

a)

46

b)

23

c)

47

d)

22

80.

WHEN THE SPERM FERTILIZES THE EGG WHAT IS FORMED

a)

ZYGOTE

b)

EMBRYO

c)

FETUS

d)

FERTILIZATION

81.

THIS IMAGE SHOWS WHAT IS HAPPENING WITH THE CHROMOSOMES?

a)

NON- DISJUNCTION

b)

METAPHASE

c)

TELOPHASE

d)

CROSSING OVER

82.

What phase of Meiosis is in this picture?

a)

Prophase I

b)

Metaphase I

c)

Anaphase I

d)

Telophase I

83.

Which phase of meiosis is shown in the picture?

a)

Prophase I

b)

Metaphase I

c)

Anaphase I

d)

Telophase I

84.

Which phase of meiosis is shown in the picture?

a)

Prophase II

b)

Metaphase II

c)

Telophase I

d)

Telophase II

85.

Which phase of meiosis is shown in the picture?

a)

prophase I

b)

metaphase I

c)

anaphase I

d)

telophase I

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