Suppose you pull Nick, who is standing on a skateboard, using a rope at a constant acceleration. What happens when you double the mass and add a friend?

The amount of force required is doubled.

There will be no change to the required amount of force.

The amount of force required is slightly increased.

The amount of force required is four-times as great.

Once in orbit, the space shuttle used very little, if any, rocket power to maintain its speed despite traveling over 15,000 mph! How were NASA engineers able to do this?

More force at liftoff equals more acceleration

More mass equals more acceleration

The space shuttle was able to use a special coating in order to achieve its fast speed in space.

Gravity provides the necessary force to keep the space shuttle traveling at a high rate of speed.

At what point on a roller coaster does the train have the highest kinetic energy?

at the bottom of the first drop

when the train first leaves the loading station

Samuel kicks a soccer ball across a grassy field and it eventually comes to a stop. If Newton’s law of inertia is true, why did the ball stop?

Friction with the grass applies a net force on the ball causing it to decrease its speed.

Newton’s law only applies to objects at rest.

The mass of the ball is not great enough to have inertia.

Gravity slowed the ball until it came to a stop.

What energy transformations are occurring in this scenario?

solar energy --> electrical energy --> light energy

electrical energy --> mechanical energy --> light energy

solar energy --> mechanical energy --> light energy

solar energy --> electrical energy --> mechanical energy

Which is newtons 3rd law

For every reaction there is an equal and opposite reaction

for every thing there is reaction

for every reaction there is a unusual action

for every reaction there is an good action

Which is newtons 2nd law

Acceleration is a change in velocity

Acceleration is a change in speed

Acceleration is a change in action

Acceleration is a change in name

Henry is investigating the properties of elements in section A. What are the general characteristics of elements from section A?

conducts heat and electricity, shiny, and solid

mostly gases and are very reactive

share properties of metals and nonmetals

liquids that are stable in pure form

An example of erosion is

pieces of rock are blown away by the wind

rock is broken into little bits

pieces of rock carried by water settle in a new location

Which phases happen immediately before and after the phase shown

Waxing Crescent and Waxing Gibbous

8th Grade Science STAAR Practice

Authored by Meagan Ezernack

Science

8th Grade

NGSS covered

Used 3+ times

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105 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Organisms who receive their energy by consuming other organisms.

Chloroplast

Heterotroph

Autotroph

Phototropism

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The part of a cell that contains the chromosomes (wound up DNA) in eukaryotic cells.

Chloroplasts

Cell Wall

Nucleus

Homeostasis

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The genetic code for all of your traits.

Nucleus

DNA

Chloroplast

Recessive gene

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The organelle inside a plant cell that converts sunlight into energy.

Chloroplast

Photosynthesis

Parasite

Cell Wall

Tags

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The part of a plant cell that is rigid & permeable.

Chloroplast

Turgor Pressure

Cell Wall

Phototropism

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The term used to define a cell that has a nucleus containing DNA.

Prokaryote

Eukaryote

Autotroph

Homeostasis

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A force exerted outward on a cell wall by the water contained on a cell.

Turgor Pressure

Adaptation

Cell Wall

Photosynthesis

Tags

NGSS.MS-LS2-1

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8th Grade Science STAAR Practice

Organisms who receive their energy by consuming other organisms.

The part of a cell that contains the chromosomes (wound up DNA) in eukaryotic cells.

The genetic code for all of your traits.

The organelle inside a plant cell that converts sunlight into energy.

The part of a plant cell that is rigid & permeable.

The term used to define a cell that has a nucleus containing DNA.

A force exerted outward on a cell wall by the water contained on a cell.

The building up of an ecosystem after lava or glaciers have left nothing but rock.

A cell without a nucleus.

Organisms who receive energy from dead or decaying matter.

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