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Worksheets2nd Semester Physical Science Benchmark Review 1
Total questions: 191
Worksheet time: 5hrs 53mins
Name
Class
Date
1.
What is refraction?
a)
when light bounces off an object
b)
when light bends
c)
when light draws an object
2.
How does sound travel?
a)
in only one direction
b)
in waves
c)
it doesn't travel
3.
Pitch is __________________.
a)
how loud or soft a sound is
b)
how high or low a sound is
c)
when sound comes back to you
4.
The longer the string on an instrument, the _________ the pitch.
a)
lower
b)
higher
c)
softer
5.
What causes sound?
a)
when the pitch is high
b)
when something vibrates
c)
when the volume is loud
6.
If I play a long string on a harp, it will probably have a __________ pitch.
a)
echo
b)
low
c)
high
d)
loud
7.
My vocal cords ___________ when air passes through them. This allows me to speak.
a)
stop
b)
vibrate
c)
close
d)
open
8.
What does it mean to reflect?
a)
bounce off
b)
bend
c)
refract
d)
energy
9.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
10.
What happens when light hits a mirror?
a)
it makes a color
b)
it reflects
c)
it makes a rainbow
d)
it passes through
11.
What happens when an object is opaque?
a)
all light is able to pass through
b)
no light is able to pass through
c)
some light is able to pass through
d)
it is black
12.
How does light travel?
a)
in a wavy path
b)
in a straight path
c)
in a zig zag path
13.
Is your laptop opaque?
a)
Yes
b)
No
14.
A convex lens curves ____________.
a)
outward
b)
inward
c)
opaque
d)
refracts
15.
What does transparent mean?
a)
some light is able to pass through
b)
no light is able to pass through
c)
all light is able to pass through
16.
A concave lens curves _____________.
a)
outward
b)
inward
c)
opaque
17.
Blurs light as it passes through
a)
Transparent
b)
Translucent
c)
Opaque
d)
Refraction
18.
Allows most light through
a)
eflection
b)
Refraction
c)
Translucent
d)
Transparent
19.
How high or low a sound is; depends on the frequency (greater frequency= higher pitch)
a)
pitch
b)
frequency
c)
sound
d)
medium
20.
What happens when white light is made to pass through a prism?
a)
The white light is blocked inside the prism.
b)
The white light is reflected back by the prism.
c)
The white light separates into light of different colors
d)
The white light comes out the prism with increased rightness
21.
Sound is a form of
a)
machine
b)
light
c)
energy
d)
frequency
22.
What is the part of a sound wave called where molecules are pressed tightly together?
a)
rarefaction
b)
compression
c)
wavelength
23.
Which of the following is an opaque material?
a)
frosted glass
b)
stain glass
c)
window
d)
aluminum foil
24.
A pencil looks like it is broken when it is placed in a glass half-filled with water. What
causes the pencil to look broken?
a)
Reflection
b)
Refraction
c)
Absorption
d)
Compression
25.
What does white light create?
a)
bioluminescence
b)
lasers
c)
The blended colors of the rainbow
d)
sunset
26.
How does light allow you to see a tree?
a)
Light goes from your eyes to the tree.
b)
Light shines on your eyes and on the tree.
c)
Light falls on the tree and travels back to the sun.
d)
Light reflects off the tree and travels to your eyes.
27.
What is an example of when you can SEE sound energy . Click all that apply
a)
A speaker vibrating as music plays
b)
Listening to a saxophone
c)
The seats vibrating at a baseball game.
d)
Hearing your friend sing.
28.
What is true about a white shirt?
a)
All the colors of light are reflected
b)
All the colors of light are absorbed
c)
The only color absorbed is clear.
29.
Which color is not a color of the rainbow?
a)
red
b)
orange
c)
yellow
d)
pink
30.
What is the best type of curtains for a person who likes to sleep in?
a)
transparent material
b)
translucent material
c)
opaque material
31.
What object reflects light in order to be visible?
a)
the moon
b)
the door
c)
a paper bag
32.
What type of glass in a window would allow the most light into a room?
a)
transparent window
b)
translucent window
c)
opaque window
33.
What are different materials vibrations can travel through?
a)
solids liquids and glasses
b)
solids only
c)
liquids only
34.
If 3 nails are hit with a pencil, which will produce the lowest pitch?
a)
the shortest nail
b)
the middle nail
c)
the longest nail
35.
a reflection that occurs when parallel rays of light hit an uneven surface
a)
regular reflection
b)
diffuse reflection
c)
real image
d)
virtual image
36.
an image that forms where light seems to come from
a)
virtual image
b)
real image
c)
diffuse reflection
d)
regular reflection
37.
an image that forms when light rays actually meet
a)
virtual image
b)
real image
c)
diffuse reflection
d)
regular reflection
38.
a mirror with a surface that curves inward like the inside of a bowl
a)
concave mirror
b)
convex mirror
c)
plane mirror
d)
flat mirror
39.
a mirror with a surface that curves outward like the inside of a bowl
a)
concave mirror
b)
convex mirror
c)
plane mirror
d)
flat mirror
40.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
41.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
42.
Which mirror you right car mirror is?
a)
concave mirror
b)
convex mirror
c)
flat mirror
d)
lens
43.
Convex mirrors cause light to spread out.
a)
True
b)
False
44.
A mirror with a flat surface is a plane mirror.
a)
true
b)
false
45.
The following is a picture of what type of mirror?
a)
Convex (diverging) mirror
b)
Concave (converging) mirror
c)
Plane Mirror
d)
Flat Mirror
46.
An image that forms where light seems to come from a point but light rays don't actually meet is a
a)
virtual image
b)
real image
c)
Inverted Image
d)
Pizza
47.
Convex Mirrors produce...
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
48.
Which terms describe the reflection seen in this image?
a)
virtual, upright
b)
virtual, inverted
c)
real, upright
d)
real, inverted
49.
Light rays that hit a convex mirror ____ as they are reflected.
a)
magnify
b)
diverge
c)
unite
d)
disappear
50.
____ are thick in the middle and thin at the edges.
a)
Plane mirrors
b)
Convex lenses
c)
Concave lenses
d)
Concave mirrors
51.
The image formed by a plane mirror is ____.
a)
real and reversed
b)
real and upright
c)
upright and reversed
d)
virtual and inverted
52.
A farsighted eye focuses an image ____.
a)
behind the retina
b)
in front of the lens
c)
in front of the retina
d)
on the retina
53.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
54.
a real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
55.
Convex lenses can produce...
a)
Real, erect images
b)
Virtual, inverted images
c)
Real, inverted images
d)
no images form
56.
Is a convex lens thicker or thinner in the middle?
a)
Thicker
b)
Thinner
57.
_____ is a lens that is thicker in the middle and makes an object appear bigger.
a)
prism
b)
convex lens
c)
concave lens
d)
mirror
58.
The above lens is a type of ___.
a)
diverging lens
b)
converging lens
c)
divergent lens
d)
convergent lens
59.
Which figure represents the path light takes through a convex lens?
a)
b)
c)
d)
60.
____ are thick in the middle and thin at the edges.
a)
Plane mirrors
b)
Convex lenses
c)
Concave lenses
d)
Concave mirrors
61.
What does refletion mean?
a)
It is when the light changes the material and the direction of it changes as well.
b)
It is when the material is rebounding the light.
62.
Which images are opaque?
a)
A & C
b)
A,C,E, & F
c)
D, E, & F
d)
A & E
63.
When a rainbow is formed outside naturally, what causes the light to refract?
a)
A. Small raindrops
b)
B. Sunlight rays
c)
C. Tiny mirrors
d)
D. Glass prisms
64.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
65.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
66.
_____ is a lens that is thicker in the middle and makes an object appear bigger.
a)
prism
b)
convex lens
c)
concave lens
d)
mirror
67.
______ is a lens that is thicker on its edges and makes an object appear smaller?
a)
mirror
b)
convex lens
c)
concave lens
d)
prism
68.
What Does a Concave Lens Do?
a)
Make things bigger
b)
Make things smaller
c)
Make things closer
d)
Make things happy
69.
What Does a Convex Lens Do?
a)
Make things bigger
b)
Make things smaller
c)
Make things closer
d)
Make things sader
70.
The color you see is the color that is ___.
a)
reflected
b)
absorbed
71.
Which term means to bounce off the surface of something?
a)
Refract
b)
Absorb
c)
Reflect
d)
prism
72.
Fill in the blank with the best answer: After light passes through a convex lens the light comes together at a __________.
a)
Spot
b)
Focal point
c)
point
d)
Local Point
73.
White light is made up of _________________ colors.
a)
10
b)
3
c)
6
d)
70
74.
Which color absorbs all light?
a)
White
b)
Black
c)
Orange
d)
Green
75.
Which color reflects all light?
a)
White
b)
Black
c)
Orange
d)
Green
76.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
77.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast
78.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
79.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast
80.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal
d)
transverse wave
81.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
82.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
83.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
84.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air.
d)
glass.
85.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
86.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
87.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
88.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
89.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
90.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
91.
Electromagnetic waves include the following except
a)
radio waves
b)
X-rays
c)
doing the wave at a football game
d)
microwaves
92.
regular disturbances that carry energy through matter or space
a)
crest
b)
energy
c)
wave
d)
trough
93.
which material does sound travel the fastest?
a)
solid
b)
liquid
c)
gases
94.
When a wave strikes and object and bounces off. (example echo)
a)
medium
b)
refraction
c)
reflection
d)
interference
95.
When a wave bends as it passes through at an angle from one medium to another.(example: pencil in a glass of water-)
a)
medium
b)
refraction
c)
reflection
d)
interference
96.
A wave carries...?
a)
energy only
b)
matter only
c)
energy and matter
d)
neither
97.
Which of the following is NOT a mechanical wave?
a)
sound
b)
light
c)
ocean
d)
seismic
98.
What kind of waves can travel through space?
a)
electromagnetic waves
b)
compressional waves
c)
longitudinal waves
d)
sound waves
99.
The lowest part of the wave is called the ?
a)
frequency
b)
crest
c)
amplitude
d)
trough
100.
The highest point of a wave is called the ?
a)
crest
b)
trough
c)
wavelength
d)
frequency
101.
What is the measure of how many waves pass a point in a second?
a)
frequency
b)
wavelength
c)
midpoint
d)
crest and trough
102.
A compressional wave is another name for a
a)
longitudinal wave
b)
electromagnetic wave
c)
radio wave
d)
hair wave
103.
In a longitudinal wave, the particles move...?
a)
back and forth
b)
up and down
c)
not at all
d)
at a 90 degree angle
104.
Amplitude is a measure of how much _________ the wave is carrying
a)
energy
b)
matter
c)
medium
d)
frequency
105.
_____________________ is the distance between a point on one wave and the identical point of the next wave.
a)
Amplitude
b)
Wavelength
c)
Frequency
d)
Crest
106.
The longer the _____________ the ______________ the frequency.
a)
wavelength, lower
b)
wavelength, higher
c)
amplitude, lower
d)
amplitude, higher
107.
The longer the _____________ the ______________ the frequency.
a)
wavelength, lower
b)
wavelength, higher
c)
amplitude, lower
d)
amplitude, higher
108.
Which wave has a greater frequency?
a)
A
b)
B
109.
The units for frequency are measured in _____________.
a)
hertz
b)
seconds
c)
m/s
d)
grams
110.
You can't hear sounds in outer space because there is no
a)
matter
b)
light
c)
energy
d)
heat
111.
What do seismic waves and sound waves have in common?
a)
they're mechanical waves
b)
they're electromagnetic waves
c)
they're transverse waves
d)
they're permanent waves
112.
When a wave's amplitude increases it means
a)
it's carrying more energy
b)
its wavelength gets longer
c)
its frequency increases
d)
its wavelength decreases
113.
Which is an example of a longitudinal wave?
a)
light wave
b)
sound wave
c)
visible wave
d)
radio wave
114.
What do we call the bottom of a transverse wave?
a)
crest
b)
trough
c)
wavelength
d)
amplitude
115.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
116.
What do we call the top of the wave?
a)
crest
b)
trough
c)
amplitude
d)
frequency
117.
What kind of wave moves at right angles to the direction of the wave?
a)
compressional waves
b)
mechanical waves
c)
transverse waves
d)
ultraviolet rays
118.
What do we call the part of a compressional wave that is when the waves are squeezed together?
a)
compression
b)
rarefaction
c)
crest
d)
trough
119.
What do we call the part of a compressional wave that is spread a part?
a)
compression
b)
rarefaction
c)
crest
d)
trough
120.
Waves are a transfer of what?
a)
Heat
b)
Light
c)
Energy
d)
Food
121.
What is a wave
a)
a disturbance in a medium
b)
a small disturbance
c)
a medium disturbance
d)
a large disturbace
122.
This type of Electromagnetic wave shows a break in bones.
a)
gamma ray
b)
x-ray
c)
brokenometer
d)
radio wave
123.
Which letter represents the wave crest?
a)
A
b)
B
c)
C
d)
D
124.
Which letter represents the wave trough?
a)
A
b)
B
c)
C
d)
D
125.
Which letter represents amplitude?
a)
A
b)
B
c)
C
d)
D
126.
Which letter represents amplitude?
a)
A
b)
B
c)
C
d)
D
127.
What is another name for wave height?
a)
Frequency
b)
Amplitude
c)
Wavelength
d)
Origin
128.
How would a person measure the wavelength on this sound wave?
a)
dense to less dense
b)
trough to crest
c)
compression to compression
d)
beginning of illustration to the end
129.
Which answer best explains how a wave is created?
a)
A wave is created when energy stays still
b)
A wave is created when a force causes a vibration
c)
A wave is created when molecules become a medium
d)
A wave is created when a liquid becomes a solid
130.
Waves can travel through empty space or they can travel through a medium. Which statement best describes a medium?
a)
The solid matter that waves travel through
b)
The gas matter that waves travel through
c)
The liquid matter that waves travel through
d)
The solid, liquid, or gas matter that waves travel through
131.
In a transverse wave, particles move...?
a)
back and forth
b)
vertically
c)
up and down
d)
wherever the matter's going
132.
________ is the midpoint in a wave where amplitude begins.
a)
point of origin
b)
amplitude
c)
crest
d)
wavelength
133.
What kind of wave can travel through space?
a)
electromagnetic waves
b)
compressional waves
c)
transverse waves
d)
longitudinal waves
134.
The layer of receptor cells that lines the back of the eye where nerve impulses begin.
a)
Iris
b)
Lens
c)
Retina
d)
Pupil
135.
Regulates the amount of light entering the eye and gives the eye its color.
a)
Iris
b)
Lens
c)
Pupil
d)
Retina
136.
Pupil
a)
Focuses light
b)
Clear tissue that covers the front of the eye
c)
Opening through which light enters the eye
d)
Layer of receptor cells
137.
The clear tissue that covers the front of the eye.
a)
Lens
b)
Pupil
c)
Iris
d)
Cornea
138.
Lens
a)
Clear tissue that covers the eye
b)
Opening of the eye
c)
Focuses the light
d)
Regulates amount of light
139.
True
a)
Cone cells detect light and dark
b)
Rods focus light
c)
Cones detect color
d)
Rods detect color
140.
The eyeball is too long
a)
Nearsightedness
b)
Farsightedness
c)
Both answers
d)
Neither answer
141.
Can not see things far away without corrective lenses.
a)
Retina damaged
b)
Pupil damaged
c)
Farsightedness
d)
Nearsightedness
142.
What is letter B
a)
Optic nerve
b)
Lens
c)
Cornea
d)
Retina
143.
What is letter C
a)
Vitreous humor
b)
Lens
c)
Optic nerve
d)
Cornea
144.
What is letter E?
a)
Vitreous humor
b)
Retina
c)
Cornea
d)
Optic nerve
145.
What is letter F?
a)
Retina
b)
Pupil
c)
Vitreous humor
d)
Iris
146.
What is letter G?
a)
Sclera
b)
Retina
c)
Lens
d)
Vitreous humor
147.
What is letter H?
a)
Cornea
b)
Optic nerve
c)
Iris
d)
Retina
148.
What is letter I?
a)
Cornea
b)
Lens
c)
Vitreous humor
d)
Optic nerve
149.
Which of the following is a true statement about light?
a)
Yellow light has more energy than blue light .
b)
The direction of a ray of light can never be changed.
c)
Light travels almost a million times faster than sound.
d)
All colors of light have the same wavelengths but different frequencies.
150.
Of the energy waves listed below, the slowest is:
a)
electrical.
b)
heat.
c)
sound.
d)
ultraviolet.
151.
The three additive primary colors of light are:
a)
a. red, green, and blue.
b)
b. red, yellow, and blue.
c)
c. magenta, cyan, and yellow.
d)
d. orange, green, and violet.
152.
The main difference between cone cells and rod cells in the human eye is that:
a)
rod cells are bigger than cone cells.
b)
rod cells respond to color and cone cells respond to shades of gray.
c)
there is a greater number of cone cells than rod cells.
d)
rod cells respond to light intensity and cone cells respond to color.
153.
We see a tree because of light being:
a)
emitted by the tree.
b)
reflected from the tree.
c)
refracted from the tree.
d)
absorbed by the tree.
154.
If white light falls upon a piece of blue cloth, the cloth:
a)
absorbs blue light and reflects all other colors to our eyes.
b)
absorbs all colors except blue and reflects only blue light to our eyes.
c)
absorbs all of the colors in the white light.
d)
absorbs none of the colors in the white light.
155.
Which statement does NOT accurately describe the human eye?
a)
There are three kinds of cone cells.
b)
The eye has about 130 million rod cells and 7 million cone cells.
c)
The eye has many more cone cells than rod cells.
d)
Photo-receptors are located on the surface of the retina.
156.
Which electromagnetic wave is invisible to our eye?
a)
blue
b)
violet
c)
infrared
d)
red
157.
What colors do the rods in our eyes see?
a)
magenta, cyan, yellow
b)
red, blue, green
c)
yellow, blue, green
d)
None of these
158.
What are the three types of cones in our eyes?
a)
magenta, cyan, yellow
b)
red, blue, green
c)
Only rods have color.
159.
The three additive primary colors of light are:
a)
red, blue, yellow
b)
red, blue, green
c)
yellow, blue, green
d)
Cyan, Magenta, Yellow
160.
Rod cells respond to:
a)
Light intensity
b)
Light color
c)
Light sound
d)
Light blue
161.
If this ice cream scoop melts, what will change?
a)
color
b)
shape
c)
flavor
162.
A puddle of water seemed to disappear. The heat caused the water to -
a)
melt
b)
condense
c)
evaporate
d)
cool
163.
The steam coming off the pot of boiling water is an example of....
a)
a solid becoming a liquid
b)
a liquid becoming a solid
c)
a liquid becoming a gas
d)
a gas becoming a liquid
164.
True or False: Matter can changes states by adding heat or cooling.
a)
True
b)
False
165.
Which will change state if you put it in the freezer?
a)
sand
b)
a bowl
c)
a pencil
d)
juice
166.
What is a example of a conductor?
a)
wood
b)
metal
c)
rubber
d)
rock
167.
What is a example of a insulator?
a)
metal
b)
rubber
c)
water
168.
Material that do not allow heat and electricity to pass through them easily are called _________
a)
Conductors
b)
Insulators
c)
D-Cell
169.
Conductors are made out of _________
a)
Metal
b)
plastic
c)
wood
170.
Log
a)
Conductor
b)
Insulator
171.
Styrofoam Cup
a)
conductor
b)
insulator
172.
An object that heat can move through easily is known as:
a)
an insulator
b)
a conductor
c)
conduction
d)
insulation
173.
An object that doesn't conduct heat well is known as:
a)
a conductor
b)
an insulator
c)
conduction
d)
insulation
174.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
175.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
176.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
177.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.
178.
The molecules in the picture are tightly held together with little movement. They have shape and energy. Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
179.
Which of the following statements describes a liquid?
a)
It has a fixed volume
b)
It becomes the volume of it's container
180.
What is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q = m Cp ∆T
b)
Q = m Cp
c)
Q = ½ m v
d)
m = Q Cp
181.
There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?
a)
Large cup (Trenta)
b)
Small cup (Tall)
c)
Venti
d)
All three are the same temperature so they have same thermal energy
182.
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?
a)
-80,371.2 J
b)
44,938.6 J
c)
80,371.2 J
d)
112,575.9 K
183.
A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of 0.10 J/g°C, what is the mass of the iron sample?
a)
25 g
b)
30 g
c)
20 g
d)
50 g
184.
The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?
a)
12.82 °C
b)
24.12°C
c)
351 °C
185.
What is the symbol for Thermal Energy?
a)
Q
b)
T
c)
m
d)
Cp
186.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
187.
The symbol for specific heat is .......
a)
Cp
b)
Q
c)
m
d)
T
188.
Water has a specific heat of 4184 J/KgºC. Wood has a specific heat of 1760 J/KgºC. What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
189.
You have 20 g of water with specific heat of 4.18 J/g°C. The temperature changes from 25° C to 20° C. How much heat energy (Q) moves from the water to the surroundings? Answer 418 Joules
a)
418 Joules
b)
209 J
c)
83 J
d)
4.18 J
190.
Calculate the heat absorbed by 105.0 grams of water when it is heated to cook spaghetti. The initial temperature of the water is 20.0°C, and the final temperature of the water is 99.0°C. The specific heat of water is 4.18 J/g•°C.. Answer 34673 J/g°C
a)
8778 J/g°C
b)
0.0005 J/g°C
c)
34673 J/g°C
d)
43451.1 J/g°C
191.
The temperature of an unknown piece of metal with a mass of 30.00 g changes from 25.0 °C to 35.0 °C when the metal absorbs 350.0 J of energy. What is the specific heat of the metal? 1.17 J/g°C
a)
1.17 J/g°C
b)
-1.17 J/g°C
c)
0.857 J/g°C
d)
-0.857 J/g°C
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