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Worksheets8TH GRADE - SPRING SEMESTER REVIEW
Total questions: 130
Worksheet time: 2hrs 27mins
The greater the mass of an object,
the easier the object starts moving.
the greater its inertia.
the more balanced it is.
the more space it takes up.
According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail
creates a friction with the hammer.
disappears into the wood.
exerts an equal and opposite force on the hammer.
moves at a constant speed.
The overall force on an object after all the forces are added together is called the
balanced force
unbalanced force
net force
centripetal force
Velocity consists of both...
Time & Distance
Speed & Direction
Time & Direction
Speed & Distance
To find average speed of an object, you must know...
Distance & Time
Distance & Velocity
Time & Speed
Distance & Acceleration
One name for Newton's First Law of Motion is
Inertia
gravity
momentum
What is Newton's 1st Law of Motion?
An object at rest stays at rest unless acted up by an outside force and an object in motion stays in motion unless acted upon by an outside force
Force = mass x acceleration
For every action, there is an equal and opposite reaction
Inertia
What is Newton's 2st Law of Motion?
an object at rest stays at rest unless acted upon by an outside force and an object in motion will stay in motion unless acted upon by an outside force
Force = mass x acceleration
For every action there is an equal and opposite reaction
What is Newton's 3rd Law?
an object at rest stays at rest unless acted upon by an outside force and an object in motion will stay in motion unless acted upon by an outside force
Force = mass x acceleration
For every action there is an equal and opposite reaction
Which law is this an example of: If a person throws a tennis ball and a balloon with the same amount of force, the tennis ball will go farther because it has more mass.
1st
2nd
3rd
Which law is this an example of: When the baseball hits the bat, the ball moves in the opposite direction. The harder you hit the ball, the harder it flies in the opposite direction.
1st
2nd
3rd
Which law is this an example of: A basketball is still until someone picks it up and throws it. The basketball is moving until it is stopped by someones hands.
1st
2nd
3rd
A roller coaster that is in motion is an example of
Kinetic energy
Potential energy
A pencil balanced on the edge of a desk, that could fall at any moment is an example of
Kinetic energy
Potential energy
The handle of a metal spoon warms up when it is placed in a hot bowl of soup because of
Convection
Conduction
Radiation
insulation.
An iron is placed on your clothes to smooth out the wrinkles. The iron transfers heat to your clothes through
conduction
convection
radiation
A pot is placed directly on a stove. The pot gets hot due to
conduction
convection
radiation
78% of the Earth's atmosphere is ___________ and 21% of the Earth's atmosphere is _____________.
Oxygen, Nitrogen
Nitrogen, Oxygen
Nitrogen, Carbon Dioxide
Oxygen, Carbon Dioxide
In what layer of the atmosphere do all weather events occur?
Stratosphere
Exosphere
Mesosphere
Troposphere
The ozone layer is a sublayer of the ________ layer.
Troposphere
Stratosphere
Exosphere
Mesosphere
Why is the ozone layer vital to life on Earth?
Planes fly in the ozone layer
It is made up of oxygen (O2)
It shields the Earth from ultraviolet (UV) rays from the sun
It causes clouds to be created
In which layer of the atmosphere do meteors burn up?
Troposphere
Mesosphere
Thermosphere
Exosphere
This layer is the outermost layer of the atmosphere. Satellites orbit the atmosphere in this layer.
Exosphere
Mesosphere
Thermosphere
Ozone Layer
What is the order of the layers of the atmosphere, starting with the layer closest to Earth's surface?
Stratosphere, Troposphere, Exosphere, Mesosphere, Thermosphere
Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
Troposphere, Stratosphere, Mesosphere, Exosphere, Thermosphere
Troposphere, Stratosphere, Thermosphere, Exosphere, Mesosphere
Which one shows a warm front?
The outermost layer is the ________.
mantle
crust
inner core
outer core
The layer below the crust is the ____________.
oceanic crust
mantle
inner core
continental crust
The core is made up mostly of _______________.
oxygen
magnesium
iron
carbon
Where would sea floor spreading most likely occur?
At convergent boundaries (oceanic vs. oceanic)
At convergent boundaries (oceanic vs. continental)
At divergent plate boundaries (oceanic vs. oceanic)
At transform plate boundaries
