Can you find a magnet with only a south pole?

No, magnets always have 2 poles - north and south

Sam and Annie find a box of marbles in their dad’s closet. Sam claims that the marbles can be used to model the structure of a solid. Select two statements that best support Sam’s claim.

Marbles in a box touch each other but do not move past one another.

The marbles in a box appear to move but they remain in a fixed position.

The movements of the marbles in a box are synchronized and orderly.

The marbles have a strong attraction to each other and tend to stick together when they collide.

The marbles’ movements are large, random and chaotic.

While working on an activity to investigate physical and chemical reactions, a student mixes two clear liquids in a beaker. When the two clear liquids mix, the result is a mixture that contains a clear liquid and an orange solid precipitate. The student concludes that a chemical reaction has occurred. Which two pieces of evidence best supports her claim?

The resulting chemical turned a different color than the initial chemicals.

The resulting chemical changed to a different state of matter.

The resulting chemical changed size.

The resulting chemical has changed shapes.

The resulting chemical changed temperature.

While working on an activity to investigate physical and chemical reactions, a student mixes two clear liquids in a beaker. When the two clear liquids mix, the result is a mixture that contains a clear liquid and an orange solid precipitate. If the resulting mixture is filtered, separating the orange precipitate from the resulting liquid, what has occurred?

The resulting mixture experienced a physical change.

The resulting mixture changed form.

A chemical change occurred to the mixture.

A change of state has occurred to the mixture.

Which statement is the best explanation for the data?

The potato’s kinetic energy is being transferred to the cotton cloth and wax paper at a faster rate than that of the aluminum foil and plastic wrap.

The kinetic energy from the potato is transferred into the foil and plastic wrap at a faster rate than that of the cotton cloth and wax paper.

The aluminum foil and plastic wrap conduct heat better than the cotton cloth and wax paper.

The cotton cloth and wax paper do not conduct heat but the aluminum foil and plastic wrap do.

Science Test 1 (Q3)

Authored by Autumn James

Science

7th - 8th Grade

NGSS covered

Used 7+ times

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25 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atoms that have a positive charge will be attracted to atoms with a ___________ charge.

positive

negative

neutral

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these forces works only by combining electric and magnetic forces?

Magnetic

Electric

Electromagnetism

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This force occurs when ions create attractive and repulsive forces.

Magnetic

Electric

Electromagnetism

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This force occurs when there is an attractive or repulsive force between two poles.

Magnetic

Electric

Electromagnetism

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The magnetic field of a magnet is ____________ further away from the magnet.

Stronger

Weaker

Larger

Smaller

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When electrons flow through wires from a negative (-) terminal to a positive (+) terminal a/an ___________ is created.

Magnet

Static Charge

Current

Electromagnet

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The area around an electric charge that experiences the force exerted by the electric charge.

Electric field

Electric force

Electric poles

Electric charge

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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Science Test 1 (Q3)

Atoms that have a positive charge will be attracted to atoms with a ___________ charge.

Which of these forces works only by combining electric and magnetic forces?

This force occurs when ions create attractive and repulsive forces.

This force occurs when there is an attractive or repulsive force between two poles.

The magnetic field of a magnet is ____________ further away from the magnet.

When electrons flow through wires from a negative (-) terminal to a positive (+) terminal a/an ___________ is created.

The area around an electric charge that experiences the force exerted by the electric charge.

Which of the following are examples of electromagnets?

An electric current flowing through a wire is surrounded by a(n) ____________________ field.

The two types of charges in electric and magnetic forces are __________________________________.

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