WorksheetsBloom's 2025 Physical Science Semester Review Exam
Total questions: 60
Worksheet time: 30mins
Name
Class
Date
1.
Where are stars created or "born"?
a)
Main sequence
b)
Nebula
c)
Dwarf galaxy
d)
black holes
2.
Which color of stars are the hottest?
a)
red
b)
blue
c)
white
d)
yellow
3.
A black hole is an object so dense and with so much gravity that even ___ cannot escape
a)
man
b)
spaceships
c)
light
d)
aliens
4.
What is the name of the explosion at the death of a supergiant?
a)
neutron star
b)
nebula
c)
supernova
d)
black hole
5.
What type of nuclear reaction occurs in the core of the sun?
a)
fusion
b)
fission
c)
radio waves
d)
explosion
6.
Where do most stars spend most of their life?
a)
nebula
b)
protostar
c)
main sequence
d)
red giant
7.
Which color has the longest wavelength?
a)
Green
b)
Red
c)
Yellow
d)
Blue
8.
Which waves on the electromagnetic spectrum have the longest wavelengths?
a)
radio
b)
infared
c)
ultraviolet
d)
gamma
9.
Which of the following is NOT evidence that the big bang occurred?
a)
Galaxies have a red shift which show they are moving away from us
b)
Hubble Space Telescope has taken pictures of galaxies 13 billion light years away
c)
The universe is contracting as shown by the blue shift of galaxies
d)
Cosmic background microwave radiation shows that the universe is not at absolute zero, but instead a few Kelvins higher
10.
What is happening to the laser at point B?
a)
transmission
b)
reflect
c)
refraction
d)
absorption
11.
Which wave on the EM spectrum has a longer wavelength than infrared but shorter than radio?
a)
Microwaves
b)
Visible Light
c)
Ultraviolet Light
d)
All of these
12.
What is happening to the laser at point D?
a)
transmission
b)
refraction
c)
absorption
d)
reflection
13.
Which person would experience a blue shift?
a)
The ladder
b)
The truck
c)
The man
d)
The woman
14.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer
15.
You can tell from the waves that the source is moving. What direction is the movement?
a)
To the left
b)
To the right
c)
Upward
d)
Downward
16.
When light is blue shifted, we know the source of light waves is...
a)
moving away from us
b)
moving towards us
c)
not moving
17.
Why is the pencil wonky looking?
a)
Reflection
b)
Refraction
c)
Diffraction
d)
Absorption
18.
Which type of electromagnetic radiation causes sunburn?
a)
Microwaves
b)
Ultraviolet
c)
Visible light
d)
Gamma Rays
19.
Which of Newton's laws of motion explains why we need to wear seat belts in cars?
a)
Newton's 1st law of motion
b)
Newton's 2nd law of motion
c)
Newton's 3rd law of motion
20.
True or False. The closer a planet is to the sun, the slower it will orbit.
a)
True
b)
False
21.
Which law of motion is demonstrated by this picture?
a)
Newton's 1st law of motion
b)
Newton's 2nd law of motion
c)
Newton's 3rd law of motion
22.
Object A and B both have a mass of 10kg. If the velocity of object B is doubled compared to object A, then its momentum will be __________ as much.
a)
half
b)
twice
c)
one fourth
d)
squared
23.
What is the net force acting on this object?
a)
40 N to the left
b)
40 N to the right
c)
O N
d)
110 N to the right
24.
An object's resistance to any change in motion is known as what?
a)
forces
b)
inertia
c)
gravity
25.
A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action, there is an equal and opposite reaction
b)
An object at rest stays at rest
c)
Every mass exerts a force on every other mass
d)
Friction opposes the motion of the object
26.
On Earth, how much does a pencil with a mass of 0.045 kg weigh?
a)
441 N
b)
0.045 kg
c)
0.441 N
d)
there is not enough information given
27.
Force equals mass times acceleration is which of Newton's laws of motion?
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
28.
On the way to school, a bus speeds up from 10 m/s to 15 m/s in 5 seconds. What is the acceleration of the bus?
a)
10 m/s/s
b)
1 m/s/s
c)
2 m/s/s
d)
5 m/s/s
29.
An object in motion will stay in motion, unless what happens?
a)
inertia
b)
Iron Man stops it
c)
a net force acts on it
30.
The beach is 750 miles away. If the speed limit is 75 mph, how much time will take to get to the beach?
a)
0.1 hours
b)
10 hours
c)
56,250 hours
d)
3 hours
e)
Option 5
31.
A 17 kg box is accelerating at a rate of 0.3 m/s/s. How much force is being applied to the box?
a)
56.67 N
b)
0.02 N
c)
5.1 N
d)
23 N
32.
According to F=ma, what are TWO ways to change the ACCELERATION of an object?
a)
increase the force and acceleration
b)
decrease the mass
c)
decrease the accleration
d)
change the force or change the mass
33.
A car cruises at a constant speed on a circular track. Is the car accelerating?
a)
no, it is moving at a constant speed
b)
yes, it's direction is constantly changing
c)
no, the car is not speeding up or slowing down
d)
yes, it is moving at a constant speed
34.
True or False. All planets in our solar system orbit the sun in a perfect circle.
a)
True
b)
False
35.
Sally has a mass of 24 kg and her brother has a mass of 16 kg. They are both in a 20 kg wagon that is moving with a speed of 2.3 m/s. What is the momentum of the wagon and the children in it?
a)
138 kg x m/s
b)
46 kg x m/s
c)
205 kg x m/s
d)
0.9 kg x m/s
36.
If the reaction force in the picture below, is the person and the kayak move forward, what is the action force?
a)
The wind blowing the kayak backwards
b)
The person pushing the paddle backwards in the water
c)
Gravity pulling the kayak down
d)
none
37.
An astronaut with a mass of 95 kg flies a new unexplored planet. On this new planet, the astronaut now weighs 2300 N. What is the gravity on this planet?
a)
0.41 m/s/s
b)
24.21 m/s/s
c)
95 kg
d)
2300 N
38.
The type radioactive decay that consists of two protons and two neutrons leaving the nucleus is
a)
alpha
b)
beta
c)
gamma
39.
Carbon-14 dating is method of absolute dating that can only be used on
a)
minerals
b)
organic matter/ used to be alive
c)
rocks
d)
water
40.
Layers of rock and fossil evidence help scientists
a)
account for all of the species that have ever existed.
b)
determine the exact age of Earth.
c)
organize events in Earth’s geologic history.
d)
list every event that has ever happened on the Earth’s surface.
41.
Scientists use radiometric dating (radioactive decay) to measure
a)
the relative age of rocks
b)
the absolute age of rocks
c)
the number of fossils in rocks
d)
Time
42.
True or False. Some types of meteorites are important in dating the earth because they have never been melted or reformed since they were made.
a)
True
b)
False
43.
According to the law of superposition, the oldest fossils are found
a)
In layer A
b)
Between layer A and B
c)
In layer B
d)
In layer c
44.
Which of the following choices is the oldest?
a)
Layer L
b)
Intrusion H
c)
Intrusion D
d)
Layer E
45.
By saying: "I am older than my sister," is an example of which type of dating used in geology:
a)
Relative Age/Dating
b)
Chronological Sibling Timelines
c)
Absolute Age/Dating
d)
Fossil Age/Dating
46.
Uranium-238 undergoes alpha decay. What element does it become?
a)
Proactinium
b)
Thorium
c)
Actinium
47.
By saying "my dad is 48 and I am 13", it would be...
a)
relative dating (time)
b)
absolute dating (time)
c)
law of superposition
48.
Using the graph below, identify how long the half life is of iodine-131
a)
64 years
b)
64 days
c)
8 years
d)
8 days
49.
The Law of Superposition helps scientists to determine what?
a)
The absolute age of rock layers
b)
The age of fossils
c)
the super powers of rocks
d)
The relative age of rock layers
50.
What is the difference between relative and absolute age?
a)
Nothing
b)
Relative only involves people
c)
Absolute can only be done on leaves
d)
Relative age is compared to other layers. Absolute age is the numeric age of a layer of rocks.
51.
The amount of time it takes for 50% of the remaining radioactive material to decay into stable material is called:
a)
radiocarbon dating
b)
radioactive decay
c)
half-life
d)
successive decay time
52.
Out of the 3 types of radioactive decay, which can go through paper, a piece of aluminum foil, and wood?
a)
alpha
b)
beta
c)
gamma
53.
Actinium-227 undergoes beta decay. What element does it turn into?
a)
Thorium
b)
Proactinium
c)
Uranium
d)
Neptunium
54.
When continental crust and oceanic crust merge at a convergent boundary, the oceanic crust gets subducted. Why does this occur?
a)
the oceanic crust is already on the bottom
b)
the oceanic crust is much more dense than the continental crust
c)
the continental crust is thicker and less dense
d)
the oceanic crust is thinner
55.
What type of plate boundary is this?
a)
convergent
b)
divergent
c)
transform
56.
What causes tectonic plates to move on top of the asthenosphere?
a)
magnetic fields
b)
the moon's gravity
c)
convection currents in the mantle
d)
tides
57.
Volcanoes can be formed at which type of plate boundaries? Choose all that apply
a)
convergent oceanic-oceanic
b)
divergent oceanic-oceanic
c)
convergent continental-oceanic
d)
transform continental-continental
58.
What can occur along this type of plate boundary?
a)
tornadoes
b)
earthquakes
c)
blizzards
d)
hot spots
59.
From the outside to inside, what is the correct order of the layers of the earth?
a)
mantle, crust, inner core, outer core
b)
lithosphere, mantle, core
c)
lithosphere, asthenosphere, mantle, outer core, inner core
d)
asthenosphere, mantle, outer core, inner core
60.
What type of boundary is occurring at FGC?
a)
convergent
b)
divergent
c)
transform
d)
none of the above
100 %
