WorksheetsPhysical Science Final Review
Total questions: 27
Worksheet time: 9mins
Name
Class
Date
1.
A sample of carbon contains carbon-12, carbon-13, and carbon-14. Why do these have different mass numbers, but the same atomic number?
a)
They are all isotopes and have different number of protons
b)
They are all isotopes and have different number of neutrons
c)
They are all isotopes and have different number of electrons
d)
They are all isotopes and have different number of protons They are all isotopes and have different number of protons and electrons
2.
What type of chemical bond is this?
a)
Ionic
b)
Covalent
c)
Metallic
d)
Normal
3.
What type of chemical bond is this?
a)
Ionic
b)
Covalent
c)
Metallic
d)
Lined
4.
Which wavelengths are the shortest on the electromagnetic spectrum?
a)
Radio
b)
Gamma
c)
Infrared
d)
Ultraviolet
5.
Cellular telephones use what type of wave?
a)
X-rays
b)
Gamma
c)
Microwaves
d)
Radio
6.
What is the process in which an unstable atomic nucleus emits charged particles or energy or both?
a)
radioactivity
b)
oxidation
c)
decomposition
d)
reflection
7.
The force opposing the flow of electrons through a material is
a)
voltage
b)
resistance
c)
current
d)
power
8.
What is the process in which an unstable atomic nucleus emits charged particles or energy or both?
a)
radioactivity
b)
oxidation
c)
decomposition
d)
none of the above
9.
Uranium-238 undergoes nuclear decay. Therefore, uranium-238 will
a)
remain stable
b)
change into a different element altogether
c)
emit neutral particles and no energy
d)
none of the above
10.
Which of the following statements is true about nuclear radiation?
a)
you are exposed to nuclear radiation every day that is harmful
b)
most of the nuclear radiation you are exposed to comes directly from the waste of nuclear power plants
c)
naturally occuring nuclear radiation is called background radiation
d)
all radiation is at a level low enough to be safe
11.
Which of the following particles is smaller than the rest?
a)
electron
b)
neutron
c)
proton
d)
nucleus
12.
You have a 100-gram sample of a radioisotope which a half-life of 10 years. How much of the sample do you have left after 30 years?
a)
100 grams
b)
50 grams
c)
25 grams
d)
12.5 grams
13.
The sun's energy is produced by what?
a)
nuclear fusion
b)
the sun's burning fuel
c)
an ordinary chemical reaction
d)
nuclear fission
14.
The distance between stars is typically measured in what unit?
a)
light years
b)
kilometers
c)
astronimcal units
d)
miles
15.
The life cycle of a star begins with a cloud of gas and dust called a what?
a)
protoplanet
b)
constellation
c)
nebula
d)
protosun
16.
Astronomers classify stars according to what properties
a)
distance from Earth
b)
color, size, and absolute brightness
c)
age and parallax
d)
all of the above
17.
A hot, bright star would appear in which section of an H-R diagram?
a)
lower left
b)
upper right
c)
upper left
d)
lower right
18.
Projectile motion is caused by what?
a)
the downward force of gravity
b)
an inital forward velocity
c)
a final vertical velocity
d)
the downward force of gravity and an initial forward velocity
19.
Which of the following is an example of an object with elastic potential energy?
a)
a wind up toy that has been wound up
b)
a compressed basketball
c)
a stretched rubber band
d)
all of the above
20.
Solar energy panels convert what type of energy into electrical energy?
a)
chemical
b)
electromagnetic
c)
nuclear
d)
thermal
21.
What does the slope of a line on a distance-time graph indicate?
a)
distance
b)
time
c)
speed
d)
displacement
22.
What does the slope of a speed-time graph indicate?
a)
direction
b)
acceleration
c)
velocity
d)
speed
23.
What are the two most chemically reactive groups on the periodic table?
a)
alkali metals and halogens
b)
transition metals and noble metals
c)
transition metals and alkaline metals
d)
halogens and noble gases
24.
What is true of translucent materials?
a)
they absorb all light
b)
they reflect all light
c)
they scatter some light
d)
they transmit all light
25.
A disturbance sends ripples across water in a tub. These ripples are an example of which of the following?
a)
rarefaction
b)
longitudinal wave
c)
compression
d)
surface wave
26.
The unit for force is which of the following?
a)
joule
b)
kilogram
c)
meter
d)
newton
27.
When a pair of balanced forces acts on an object, what is true of the net force that results?
a)
it is greater in size than both forces
b)
is it greater in size than one of the forces
c)
it is equal in size to one of the forces
d)
it is equal to zero
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