Which of the following characteristics best describes plasma?

Can conduct electricity and create magnetic fields

What is a key characteristic of gases?

Their particles can move freely

Which statement about liquids is correct?

They have definite volume but changing shape

Which set of changes contains ONLY physical changes?

Dissolving sugar in water, folding paper, mixing ingredients

What type of change occurs when milk turns sour?

Chemical change because new substances form

Which of the following statements about the arrangement of elements on the periodic table is correct?

Elements in the same group have similar properties and number of valence electrons

Why are Group 17 elements (halogens) considered highly reactive nonmetals?

They only need one more electron to complete their outer shell.

How do you calculate the number of neutrons in an atom?

Round the atomic mass to the nearest whole number and subtract the atomic number

Which statement about periods in the periodic table is true?

Periods indicate the number of energy levels

In a chemical reaction, what happens to the total mass of all substances involved?

The mass remains exactly the same

Which statement about balanced chemical equations is correct?

Reactants are always on the left side of the arrow

What can be modified to balance a chemical equation?

The coefficients in front of compounds

Which statement about the relationship between kinetic and potential energy is correct?

They are inversely proportional to each other

At the halfway point down a roller coaster hill, what is true about the energy distribution?

The energy is equally divided between kinetic and potential energy

When lighting a match, what is the correct sequence of energy transformation?

Chemical to thermal and radiant

In a pot of boiling water, the warm water rises while cooler water sinks. This occurs because:

The warm water has a lower density

Heat transfer through electromagnetic waves differs from other methods because:

It can occur through empty space

Relationship between kinetic energy, mass, and speed?

Kinetic energy increases with greater mass and speed

What is the difference between speed and velocity?

Velocity includes direction while speed does not

Which statement best describes Newton's First Law of Motion?

An object will remain in motion or at rest unless acted upon by a force

A heavy truck and a small car are traveling at the same speed. Which vehicle has more inertia?

The heavy truck because it has more mass

According to Newton's Second Law of Motion, what happens when unbalanced forces act on an object?

The object accelerates in the direction of the greater force

Why doesn't a book slide across a table on its own?

Because of friction between the book and table

8th Science GMAS Review Flashcards

Student preview

50 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the relationship between atoms and molecules?

Back

Molecules are groups of atoms bonded together

2.

FLASHCARD QUESTION

Front

Which statement about pure substances is correct?

Back

Pure substances contain only one type of atom or molecule

3.

FLASHCARD QUESTION

Front

How are homogeneous mixtures different from heterogeneous mixtures?

Back

Homogeneous mixtures are uniform throughout

4.

FLASHCARD QUESTION

Front

Which subatomic particle can leave an atom?

Back

Electrons

5.

FLASHCARD QUESTION

Front

What is a key characteristic of compounds?

Back

They require chemical reactions to break apart

6.

FLASHCARD QUESTION

Front

Which phase of matter has particles that are packed together tightly and only vibrate in place?

Back

Solid

7.

FLASHCARD QUESTION

Front

What happens to matter when energy is added or removed?

Back

It changes phase

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