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Spring 2023 PHY SCI Final

Total questions: 108

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

Atoms are electrically ___________

a)

Neutral

b)

Positively charged

c)

Negatively charged

d)

particles

2.

What is the meaning of conduction ?

a)

Having to objects TOUCH each other and transfer protons from one object to the next.

b)

Having to objects touch each other and transfer electrons from one object to the next.

c)

Having to objects touch each other and seperate protons from one object to the next.

d)

None of the above

3.

Like charges

a)

Hug

b)

Repel

c)

Attract

d)

Hate each other

4.

what happens when you rub the balloon against your hair?

a)

Balloon lose protons and hair gain protons

b)

Balloon lose electrons and hair become neutral

c)

Balloon gain electrons and hair lose electron

d)

both become neutral

5.

what is grounding?

a)

A and C

b)

the transfer of protons from an object to the ground.

c)

When an object fall on the ground.

d)

Electrical connection to earth.

6.

glass, rubber, silk, and plastic are all examples of

a)

Conductors

b)

Insulator

c)

Thermel conductivity

d)

Materials

7.

Electric charge is _________ this means that the total electric charge in the universe is __________

a)

conserved and constant

b)

neutral and constant

c)

positive and negative

d)

Conserved and grounded

8.

What is the effect of one negatively charged object and one positively charged object coming close to each other.

a)

The objects repel each other.

b)

The objects attract each other.

9.

An object with a negative charge will be most strongly attracted to which of the following?

a)

an object with a weak positive charge

b)

an object with a strong positive charge

c)

an object with a weak negative charge

d)

an object with a strong negative charge

10.
The accumulation of excess electric charge on an object is called
a)
Static electricity 
b)
Electric discharge
c)
Resistance
d)
Circuit 
11.
If an object has the same number of positive and negative charges, its electrical charge is...
a)

positive

b)

negative

c)

neutral or no charge

d)

opposite

12.
Which of the following statements is false about electric field lines
a)
electric field lines cannot cross
b)
electric field lines point away from positive charge
c)
electric field lines are always straight lines
d)
electric field lines show how a proton would move in an electric field
13.
At which point is the electric field the weakest?
a)
A because it is the furthest away
b)
A because the field lines are further apart
c)
C because the field lines are further apart
d)
C  because it is the furthest away
14.
Consider the electric field lines drawn at the right for a configuration of two charges. Several locations are labeled on the diagram. Which of these shows the ranking in order of weakest to strongest correctly
a)
A, E, C
b)
D, E, C
c)
D, B, A
d)
A, D, B
15.

Which diagram correctly shows the electric field around a negative charge?

a)

A

b)

B

c)

they are both positive

16.
The closer the charges, the ___________ the force between them
a)
closer
b)
further
c)
stronger
d)
weaker
17.
To demonstrate static electricity, a teacher takes an inflated balloon and rubs it against his hair.  The rubber balloon picks up electrons from his hair, which makes his hair have
a)
a net negative charge
b)
a magnetic force
c)
a net positive charge
18.

What type of force is electric force?

a)

Pull and Push

b)

Contact Force

c)

magnetic force

d)

Non contact force

19.

Example on insulator is ......................................

a)

Wire

b)

metal

c)

wood

d)

copper

20.
Current is...
a)
moving protons
b)
moving electrons
c)
measured in volts
d)
measured in ohms
21.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
22.
Potential energy can be converted into _________________.
a)
food & waste
b)
water & light
c)
light & heat
d)
heat & food
23.
The two types of current are...
a)
AC/DC
b)
Alternating Current
c)
Direct Current
d)
All of the above
24.
Resistance is...
a)
What "slows down" electrons
b)
What "speeds up" electrons
c)
Moving electrons
d)
What "pushes" electrons
25.
Good insulators are _______ resistors
a)
good
b)
bad
26.
A 120 w light bulb uses more ____________ than a 60 w light bulb.
a)
thermal energy
b)
electrical energy
27.
If you turn on all of the lights in your house, the electric meter measuring Kilowatt-hours outside your home will read a ________ value than if the lights are off.
a)
higher
b)
lower
28.
A complete, unbroken path that charges can flow through is called an __________________.
a)
conductor
b)
electric circuit
c)
electric current
d)
insulator
29.
A circuit with only one path for the current to flow is a __________________.
a)
parallel circuit
b)
series circuit
c)
mini circuit
d)
device
30.

This is an example of a _______ circuit

a)

open

b)

series

c)

parallel

d)

square

31.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
32.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
33.

is the opposition to the flow of charges in a material.

a)

Resistance

b)

Voltage

c)

Time

d)

Current

34.
What word means how fast the electrons flow.
a)
Current
b)
Voltage
c)
Resistance
d)
Power
35.

What would happen if you took one end of the wire off the battery?

a)

The nail will be a magnet.

b)

The nail would no longer be a magnet

c)

Nothing will happened.

d)

The nail will heats up.

36.

Electric currents produce _____________

a)

electron clouds

b)

magnetic fields

c)

sound waves

37.
What are the ends of a magnet called?
a)
East and west poles
b)
Left and Right ends
c)
North and South ends
d)
North and South poles
38.
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.
a)
wire, iron, electric
b)
electric, wire, iron
c)
iron, electric, wire
d)
excited, hair, apple
39.
What is an electromagnet?
a)
a temporary magnet made from current carrying wire around a magnetic metal core.
b)
a permanent magnet with a north and south pole
40.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
41.
What would increase the strength of an electromagnet?
a)
Increasing the amount of current flowing through the wire.
b)
Inserting a wooden core inside the coil
c)
Changing the direction of the current
d)
Decreasing the number of coils of wire
42.

This is an object made from a battery, a nail and some wire. What will happen if you touch a metal paper clip to the nail?

a)

The wires will melt.

b)

The battery will spark.

c)

The nail will give you a shock.

d)

The paper clip will stick to the nail.

43.

What do we call a device that converts electricity into mechanical movement?

a)

electric charge

b)

electric motor

c)

electric current

d)

electric plasma

44.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
45.
A compass needle responds to a magnetic field, because the compass needle is a
a)
A. generator.
b)
B. motor.   
c)
C. magnet.
d)
D. transformer.
46.

Which statement is true?

a)

I. All electromagnets are permanent magnets.

b)

II. Increasing the number of coils in an electromagnet decreases it strength.

c)

III. Increasing the batteries increases the strength of an electromagnet.

d)

Both I and II

47.
What is the device seen here?
a)
generator
b)
electric motor
c)
electromagnet
d)
magnet
48.

Electromagnet is a permanent magnet

a)

True

b)

False

49.

What do the lines around this magnet represent?

¿Qué representan las líneas alrededor de este imán?

a)

North Pole

b)

South Pole

c)

Magnetic Declination

d)

Magnetic Field

50.

Which pair of magnets would result from cutting the magnet in half?

a)
b)
c)
d)
51.

The picture shows an experiment used to determine the effect of using more nails in the core of an electromagnet. Which of the following would make this a better-designed experiment?

a)

Using a different number of batteries for each electromagnet

b)

Using the same number of turns of wire for each electromagnet

c)

Inserting an ammeter in each circuit between the battery and the nails

d)

Using a different size battery for each electromagnet

52.

Which two areas of physical science are closely related to the development of electric motors and generators?

a)

sound and light

b)

electricity and sound

c)

light and magnetism

d)

electricity and magnetism

53.

Which of the following best describes a simple electric motor?

a)

It converts electric energy into chemical energy and heat.

b)

It converts mechanical energy into electric energy and heat.

c)

It converts electric energy into mechanical energy and heat.

d)

It converts mechanical energy into chemical energy and heat.

54.

Electromagnetic radiation can be used to

a)

predict the weather

b)

make topographical maps

c)

find volcanoes

d)

all of the above

55.

Which set of light types follows the pattern of low to high energy?

a)

microwaves, infrared, visible

b)

radio waves, x-rays, gamma

c)

infrared, visible, ultraviolet

d)

all of the above

56.

Why do dentists put a lead apron on you before taking x-rays?

a)

They want you to be comfortable, like wearing a weighted blanket.

b)

Lead can stop x-rays from passing through you where they are not wanted.

c)

There is no good reason for it.

d)

The lead apron helps the x-rays take better pictures.

57.

What unit is wavelength reported in?

a)

meters

b)

Hertz

c)

meters/second

d)

seconds/meter

58.

Which of the following has the shortest wavelength?

a)

microwaves

b)

UV rays

c)

Infrared

d)

the color blue

59.

Which of the following has the most energy?

a)

X-rays

b)

The color green

c)

Microwaves

d)

ultraviolet

60.

Which of the following has the highest frequency?

a)

TV

b)

Microwaves

c)

the color indigo

d)

ultraviolet rays

61.

How do electromagnetic and mechanical waves compare?

a)

Mechanical waves can only travel through a vacuum, but electromagnetic waves can travel through a solid, liquid, or gas.

b)

Mechanical waves can travel through a solid, liquid, or gas, but electromagnetic waves can only travel through a gas.

c)

Mechanical waves can only travel through a solid, liquid, or gas, but electromagnetic waves can travel through a vacuum.

d)

Mechanical waves can travel through a solid, liquid, or gas, but electromagnetic waves can only travel through a solid.

62.

Which distance represents the amplitude?

a)

W

b)

X

c)

Y

d)

Z

63.

If a wave has a greater frequency, what happens to number of waves per second?

a)

increases

b)

decreases

c)

stays the same

64.

Which has the LONGEST wavelength and, therefore, the LOWEST frequency/energy

a)

Gamma Rays

b)

Ultraviolet

c)

Visible Light

d)

Infrared rays

65.
Which type of light has the highest energy of this group?
a)
red
b)
yellow
c)
green
d)
blue
66.

Electromagnetic waves vary in

a)

the speed they travel in a vacuum.

b)

wavelength and frequency.

c)

the way they reflect.

d)

the orientation of their electric and magnetic fields.

67.
Which electromagnetic waves allow us to diagnose & treat cancer?
a)
Gamma rays
b)
X-rays
c)
Ultraviolet rays
68.

Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the kitchen counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned toward the outlet because....

a)

the electric current in the outlet produced a magnetic field

b)

the compass only works properly outside

c)

the kitchen counter was made of a ferrometal

d)

the kitchen has a microwave

69.

A material through which electrons do NOT flow easily is a(n) ______.

a)

insulator

b)

conductor

c)

fuse

d)

circuit breaker

70.

How are two ways that Earth's magnetic field is useful for us?

a)

It allows us to know which direction is "Down" and allows for better navigation

b)

It protects the surface of the earth from UV rays and causes tides

c)

It produces the Auroras and causes the spin of the earth

d)

It blocks the harmful Solar Wind and allows for more efficient navigation

71.

What kind of wave is pictured below?

a)

compressional wave

b)

transverse wave

c)

sound wave

d)

mechanical wave

72.
Which wave is pictured?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
73.

The glass prism is able to bend light because .......

a)

light is refracted as it enters a different medium

b)

the prism offers destructive interference

c)

energy is diffracted when it encounters an obstacle

d)

the glass and the light's wavelength create resonance

74.

Is the image Reflection, Refraction, or Diffraction?

a)

Refraction

b)

Reflection

c)

Diffraction

75.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
76.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

77.
Are made from a combination of 2 or more elements in a constant ratio...
a)

Atom

b)

Mixture

c)

Compounds

d)

Elements

78.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
79.
Chicken soup is an example of what kind of substance?
a)
homogenous mixture
b)
solution
c)
heterogeneous mixture
d)
compound
80.
O2
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
81.

What is a physical property of these strawberries?

a)

Red

b)

Rotten

c)

Flammable

d)

Bad odor

82.

Physical properties....

a)

change the matter when studied

b)

can be observed and measured without changing the matter being studied

c)

include the ability to burn and rust

d)

are useless unless studied in a lab

83.
When a gas changes its phase and turns into a liquid it is known as
a)
condensation.
b)
sublimation.
c)
vaporization.
d)
freezing or solidification.
84.

What is happening at point B if heat is entering the matter?

a)

melting

b)

freezing

c)

evaporating

d)

condensing

85.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
86.

Which statement is accurate regarding subatomic particles?

a)

electrons are the heaviest particle, with a positive charge

b)

protons and electrons are equal in mass with positive charges

c)

electrons are neutral with the least mass

d)

protons have a positive charge with a mass of 1 amu and neutrons are neutral with the same mass as a proton

87.

What are the two elements which are liquid at room temperature

a)

Mercury, Bromine

b)

Iodine, sodium

c)

Selenium, manganese

88.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

89.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

90.

Is this an example of a physical or chemical change?

a)

physical

b)

change

91.

Which of the following is NOT an example of a physical change?

a)

crumpling paper

b)

sharpening a pencil

c)

clothes shrinking

d)

sour milk

92.

Describes how matter reacts with other matter. Examples: flammability and toxicity.

a)

physical properties

b)

chemical properties

93.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
94.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
95.
Why does ice float?
a)
Liquid water is less dense than solid water.
b)
Solid water is less dense than liquid water.
c)
Gaseous water is less dense than solid water.
d)
Liquid water is less dense than gaseous water.
96.
H+ and S2- create...
a)
H2S
b)
HS2
c)
H2S2
d)
HS
97.

Pb4+ and O2- create...

a)

Pb2O

b)

PbO2

c)

Pb2O2

d)

PbO

98.

Rb+ and P3- create...

a)

Rb3P

b)

RbP3

c)

RbP

d)

Rb2P

99.

H+ and N3- create...

a)

H3N

b)

HN2

c)

H2N2

d)

HN

100.
Nonmetals tend to 
a)
gain electrons
b)
lose electrons
101.

A chemical bond between a metal and a non-metal

a)

Ionic Bond

b)

James Bond

c)

Covalent Bond

d)

Polar Bond

102.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
103.
If my charge becomes 2+ what does that say about me?
a)
I am stealing 2 electrons
b)
I am losing 2 electrons
c)
I am in period 2
d)
I have an atomic # of 2
104.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
105.

Name this group: These metals are the most reactive.

a)
b)
c)
d)
106.

Name this group: These metals are the second most reactive.

a)
b)
c)
d)
107.

This picture illustrates copper's

a)

brittleness

b)

malleability

c)

ductility

108.
A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal? 
a)
Hydrogen
b)
Arsenic
c)
Krypton
d)
Copper

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