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WorksheetsHPLS 8th grade science
Total questions: 90
Worksheet time: 1hrs 12mins
what are the most common tectonic plate boundaries, select three.
divergent boundaries
convergent boundaries
transform boundaries
transatlantic boundaries
divergent boundaries ...
where new crust is generated as the plates pull away from each other
where crust is destroyed as plate dives under another.
where crust is neither produced nor destroyed as the plates slide horizontally past each other.
where crust floats on top of magma doing nothing
What happens at convergent boundaries?
Crust is generated as the plates pull away from each other
Crust is destroyed as one plate dives under another
Crust is neither produced nor destroyed as the plates slide horizontally past each other
Crust floats on top of magma doing nothing
What occurs at transform boundaries?
New crust is generated as the plates pull away from each other
Crust is destroyed as one plate dives under another
Crust is neither produced nor destroyed as the plates slide horizontally past each other
Crust floats on top of magma doing nothing
Magma in the lower mantle is heated by the core and rises toward the crust. It then cools and sinks back down toward the core. What is this process called?
conduction
convection
composite
current
Jill is dragging her bag to the right with a force of 6N, her dog Spartacus is tugging her bag to the left with a force of 3N. Which *direction* will Jill's bag continue to go?
(a)
Jill drags her bag to the right with a force of 6N and her dog Spartacus is tugging the bag to the left with a force of 3N. How much force in Newtons (N) will Jill's bag move?
(a)
Jill is pulling her bag to the right with a force of 10N, her dog Spartacus is helping her by tugging at her bag in the same direction with a force of 3N. What direction will Jill's bag go?
(a)
Jill is pulling her bag to the right with a force of 10N, her dog Spartacus is helping her by tugging at her bag in the same direction with a force of 3N. What force in Newtons (N) will Jill's bag travel?
(a)
What is the process called when a tectonic plate is forced under another?
Subduction
Convection
Conduction
Transformation
What is the primary force that causes tectonic plates to move?
Gravity
Magnetic field
Convection currents in the mantle
Solar radiation
What is the term for the supercontinent that existed during the Paleozoic and Mesozoic eras?
Pangea
Gondwana
Laurasia
Eurasia
What is the tilt of the Earth responsible for?
day/ night cycle
seasons
magnetic field
moon phases
What is it called when the Earth faces the Sun?
Night
Day
Spring
Winter
How could you describe night on Earth?
A 12 hour period where the Earth faces away from the Sun
A 12 hour period where the Earth faces the Sun
A 6 month period where the Earth is tilted towards the Sun
A 6 month period where the Earth is tilted away from the Sun
What is the name of the boundary where two tectonic plates move towards each other?
Divergent boundary
Convergent boundary
Transform boundary
Subduction boundary
Which side of earth is experiencing nighttime/darkness?
Side A
Side B
Earth's axis is tilted off of the ecliptic plane by how much?
90 degrees
22.7 degrees
23.5 degrees
25.3 degrees
2 Parts: One complete revolution of Earth around the Sun takes about ______ and one rotation takes about _______.
365 days; 24 hours
1 day; 1 year
24 hours; 365 days
365 hours; 24 days
Earth has seasons AND we view our Sun's zenith change on a daily basic because:
Earth rotates on its axis exposing 1/2 to sunlight and 1/2 to darkness
Earth's axis is tilted as it revolves around the sun leading to a difference of direct sunlight
The distance between Earth and the sun changes; when we are closer, we are hotter and the Sun is higher
the temperature of the sun changes.
An equinox occurs when
the Equator is receiving the most direct sunlight (directly above)
the Northern Hemisphere is tilted away from the sun.
the Northern Hemisphere is tilted toward the sun.
Earth's axis is parallel to the sun's rays.
The Northern Hemisphere experiences the shortest daytime, the longest night time hours, and the sun's angle is lowest? What event is taking place?
summer solstice.
winter solstice.
fall equinox.
spring equinox.
Why does the area near the equator experience such a small range of temperatures throughout the year?
The equator rotates slower than the poles.
The equator remains the same distance from the Sun.
The equator receives more direct sunlight on average than higher latitudes.
The equator is closer to the Sun.
Select the 2 reasons why Earth experiences different seasons
Earth rotates
Earth revolves around the sun
Earth is tilted on its axis
Earth has day and night
Which way does the equator run?
up and down (north and south)
left and right (west and east)
diagonal
nowhere
What imaginary line is drawn around the earth’s center?
Equator
Prime Meridian
Axis
Orbit
It takes the Earth ______________ to revolve around the sun.
One day
One Month
One year
Two years
What is the phenomenon that causes the change in seasons?
The rotation of the Earth around its axis.
The revolution of the Earth around the Sun.
The tilt of the Earth's axis relative to its orbit around the Sun.
The gravitational pull of the Moon on the Earth.
Earth's rotation causes the appearance of the Sun moving from east to west across the sky
True
False
Which of these best shows how the Earth revolves around the sun as the moon revolves around the Earth?
Picture A
Picture B
Picture C
Picture D
When can you see the firework?
What does rotate mean?
Travel Around
Spin
What is the Science word for spin?
revolve
rotate
Earth _____ around its axis.
Rotates
Revolves
A rotation takes one _____.
Year
Month
Day
When the Earth faces towards the Sun, it is _____.
Daytime
Nighttime
When the Earth faces away from Sun, it is _____.
Daytime
Nighttime
What type of forces is the boy most likely applying?
friction
gravity
pull
push
Which object will most likely move farthest with only 3 newtons of force?
a paper clip
a computer
your science book
a tissue box
Your mom is shopping at Costco. As she adds more items into her cart, she will need to use less force to move the cart as its mass increases.
True
False
If each person is pulling with the same force, which side will win?
left side
right side
When forces do not result in a change of motion, they are called __________.
balanced forces
unbalanced forces
___________ is a measure of the amount of matter in an object.
gravity
force
mass
A horse was pulling an empty buggy, but then 5 people hopped on. What does the horse driver need to know about forces and motion to keep everyone safe while driving?
The buggy has more mass now, so he will need more room to turn.
The buggy has less mass now, so there is nothing to worry about.
The buggy has more mass now, so he needs more time to brake.
An icy road would have ________ friction.
more
less
This picture is showing _________.
a balanced force
an unbalanced force
Provided is a diagram showing forces on a box. What is the net force on the box?
10 Newtons West
10 Newtons East
90 Newtons West
90 Newtons East
Provided is a diagram showing forces on a box. What is the net force on the box?
5 Newtons ->
5 Newtons <-
15 Newtons ->
15 Newtons <-
A break in Earth's crust where the rocks on either side have moved is called a
constraint
subduction
fault
The process by which the rocks on either side of the mid-ocean ridge slowly pull away from each other allowing molten rock to rise, solidify and form new seafloor is called
plate tectonics
seafloor spreading
continental drift
The scientific theory that the lithosphere is made up of rigid pieces, called tectonic plates that move across Earth's surface is called
plate tectonics
seafloor spreading
subduction
The process by which a collision between two tectonic plates forces the denser plate under the less dense plate is called
constraints
fault
subduction
Continental crust and oceanic crust are different because
continental crust is thinner
oceanic crust is thinner
oceanic crust is denser
What is inertia?
An object that is accelerating
Gravitational force
An objects tendency to stay at rest or in motion
An unbalanced force
Inertia depends on __________.
Weight
Velocity
Mass
Acceleration
Newton's third law states.......
For each action there is a larger reaction associated with it.
None of these choices
For each action there is an equal and opposite reaction.
For each action there is a smaller reaction associated with it.
The tendency of an object to just keep doing what it is doing.
Laziness
F=MA
No Clue
Inertia
The ________________ of an object measures how far something moves in a given time.
Velocity
Speed
Movement
Position
What law states that for every action, there is an equal and opposite reaction?
net force
motion
third law
collide
According to Newton's Third Law, if someone is riding a wakeboard and then jumps off, the wakeboard will travel in the opposite direction because...
the mass of the wakeboard is the same as the person jumping off
the pull of gravity on the person is sthe same as on the wakeboard
the air resistance on the person is great and the friction on the wakeboard is small
for the force that sent the person forward, there is an equal force pushing back on the wakeboard.
When you are sitting in a chair, your body exerts a ___ on the chair and the chair exerts the ___ force back.
Interacting objects
Newton
Force; same
Friction
True or False? A rocket launched into space and a balloon accelerating upward are both examples of Newtons Third Law.
True
False
Explain what force pairs are acting in this example of Newton's 3rd Law.
Which definition matches Newton's 3rd Law?
Everything you push pushes back equally, creates a force pair
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force
A group of smaller parts that work together as a whole
When two or more forces are equal and cause an object to stay at rest or stay in motion
When a heavy football player and a light one collide with one another, who exerts more force on the other (according to Newton's 3rd law)?
The heavy one
The light one
They are equal
There is no such thing as force
Which law best explains why more force must be applied to the bowling ball to make it accelerate at the same rate as the tennis ball.
Newton's 1st Law of Inertia
Newton's 2nd Law of F=ma
Newton's 3rd Law of Force Pairs (AKA Action/Reaction)
Newton's Law of Biology
When the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?
Newton's 1st Law of Inertia
Newton's 2nd Law of F=ma
Newton's 3rd Law of Force Pairs
Newton's Law of Biology
Which law best explains why the coin sitting on top of the ring falls directly into the jar below because it wants to remain at rest?
Newton's 1st Law of Inertia
Newton's 2nd Law of F=ma
Newton's 3rd Law of Force Pairs
Newton's Law of Science
What is the best class?
(a)
A 50-kg man and a 20-kg boy, both on skateboards, push off of each other using their hands. Which of these describes the motion of the two people?
The man moves farther and faster than the boy.
The boy moves farther and faster than the man.
The man moves farther but the same speed as the boy.
The boy moves faster but the same distance as the man.
A 120-lbs woman and a 70-lbs girl, both on roller skates, push off of each other using their hands. Which of these describes the motion of the two people?
The 120-lbs woman does not move
The 70-lbs girl does not move
The 70-lbs girl moves farther and faster than the 120-lbs woman
The 120-lbs woman moves father but at the same speed as the 70-lbs girl
Volcanic activity happens at what plate boundaries? Select two.
transform boundary
convergent boundaries
divergent boundaries
transatlantic boundaries
Divergent plate boundaries usually form these two types of landforms. (select two)
ridges
rifts
trenches
mountains
Convergent plate boundaries usually cause these two landforms (select two).
trenches
mountains
ridges
rifts
What is happening to the tectonic plates at a mid-ocean ridge?
the tectonic plates are colliding
the tectonic plates are pulling away from each other
the tectonic plates are sliding against each other
the tectonic plates are not moving
What type of plate boundary is shown?
transform plate boundary
divergent plate boundary
convergent plate boundary
transatlantic plate boundary
What type of plate boundary is shown?
divergent plate boundary
convergent plate boundary
transform plate boundary
transatlantic plate boundary
What type of land formation could happen at a plate boundary like this?
a mid-ocean ridge
fault lines
small pond
no change to the land formation
True or False
Volcanic activity does not usually happen at transform plate boundaries.
True
False
