Matter can be categorized as a pure substance, a homogeneous mixture, or a heterogeneous mixture. Which of the following are heterogeneous mixtures?

Oxygen and carbon dioxide gases in air

Four liquids with different densities are poured into a container. Each liquid and its density are shown in the table: Olive oil 0.90 g/mL; Salt water 1.03 g/mL; Turpentine 0.85 g/mL; Water 1.00 g/mL. Where does each liquid end up in the container? Select two answers.

Turpentine is the bottom layer.

Which statements about the grouping of elements on the periodic table are true? Select two answers.

Elements are grouped by properties.

Elements are grouped into metals, nonmetals, and metalloids.

Elements are grouped by element name.

Elements are grouped into solids, liquids, and gases.

A black iron chair is placed outdoors. Over time, the chair becomes coated with a red substance. Which is the best explanation for the appearance of the red substance?

The red substance is the product of a chemical change.

The red substance is a form of black iron that appears.

The red substance is a mixture of two substances in iron.

The red substance formed when the black substance melted.

Read the passage and use the diagram to answer the question. Three reactions are observed in a lab, as shown. Reaction 1: A gas is produced after a solid and a liquid solution are combined. Reaction 2: A solid precipitate appears after two liquid solutions are combined. Reaction 3: A solid is dissolved after being placed in a beaker of water. Reaction 4: A solid begins to burn after being exposed to air. Which statement correctly compares two of the reactions?

Reaction 1 is a chemical change because a gas is produced. Reaction 3 is a physical change because dissolving does not make a new substance.

Reaction 2 is a chemical change because a precipitate is formed. Reaction 4 is a physical change because the solid is burning.

Reaction 3 is a chemical change because a solid is being dissolved. Reaction 1 is a physical change because a gas is produced.

Reaction 4 is a chemical change because a solid is burning. Reaction 1 is a physical change because a gas is produced.

Each sentence describes the effect of a force. 1. A baseball thrown into the air comes back down again. 2. A volleyball player spikes a ball over the net. 3. Water pushing against a swimmer as they move through the water. 4. A tennis ball comes up from the ground after it is bounced. 5. The needle in a compass points toward the North Pole. Which correctly pairs each effect with the force that causes it?

1: Gravity; 2: Applied; 3: Friction; 4: Normal; 5: Magnetism

1: Magnetism; 2: Normal; 3: Gravity; 4: Friction; 5: Applied

1: Applied; 2: Friction; 3: Normal; 4: Magnetism; 5: Gravity

A worker pushes a large box across the smooth floor of a warehouse. Four forces, labeled A through D, are shown in the diagram. Which correctly identifies the forces shown?

Force A: Applied; Force B: Friction; Force C: Gravity; Force D: Normal

Force A: Friction; Force B: Gravity; Force C: Normal; Force D: Applied

Force A: Applied; Force B: Normal; Force C: Gravity; Force D: Normal

Force A: Normal; Force B: Friction; Force C: Applied; Force D: Gravity

Choose the answers that describe the changes to the scenario that would affect Forces B and C. Select all that apply.

Objects are added to the box to make it much heavier.

Objects are removed from the box to make it much lighter.

The worker is replaced with someone stronger.

The worker pushes the box over an uneven or rough floor.

Use the diagram of two bar magnets placed near each other with the north pole of one facing the south pole of the other to answer this question. Magnetism is a ________ force that can be either a push or pull. Magnetic force is exerted when a magnet interacts with ________ or with another magnet. In the diagram, two bar magnets are placed near each other with the north pole of one facing the south pole of the other. Since the magnets are placed with their north and south ends near each other, the magnetic force between them will be ____________________. Which terms best complete the paragraph?

noncontact; any object; repulsive

contact; any object; attractive

Part A: Identify the true statement(s) about the force that occurs between our planet and the moon that keeps the moon in orbit. Select all that apply. A. Gravity is an attractive-only force that pulls objects towards other objects. B. Magnetism between Earth and the moon is possible due to the composition of metals within Earth’s core. C. Friction is a contact or non-contact force that increases in strength as distance decreases. D. The greater the mass of an object, the greater the force of its gravity on other objects.

Gravity is an attractive-only force that pulls objects towards other objects.

The greater the mass of an object, the greater the force of its gravity on other objects.

Magnetism between Earth and the moon is possible due to the composition of metals within Earth’s core.

Friction is a contact or non-contact force that increases in strength as distance decreases.

Part B: According to NASA, our moon moves approximately one inch away from Earth each year. If this pattern continues, how could the increased distance affect the strength of the force between Earth and the moon?

As distance increases, the strength of the force would weaken.

As distance increases, the strength of the force would increase.

The strength of the force would increase and decrease due to other factors.

The strength of the force would not change, because it is not dependent on distance.

As swimmers propel themselves through water, there are a variety of forces at work. Which forces are acting on the swimmer in the diagram at A and B? Select all that apply.

Force A is the applied force the swimmer uses to propel themselves through the water.

Force B is the gravitational force pulling the swimmer towards the Earth’s surface.

Force A is the frictional force known as water resistance that pulls the swimmer backward.

Force B is the normal force that is equal to and cancels out the force of gravity pulling the swimmer.

Identify and explain what forces act as a stationary bicycle rests on the pavement with its rider. Select all that apply.

The gravitational force of Earth exerts a downward force on the bicycle and its rider.

Normal force acts equal and opposite to the downward force of the bicycle and rider, and perpendicular to the contact surface.

Normal forces are applied downward on the bicycle and rider and downward on the pavement during contact.

Frictional force acts equal to and in the opposite direction of gravity at the time of contact to prevent solid objects from passing through each other.

Two workers at a furniture store are moving a couch to another display. One worker pushes with a force of 150 N and the other pushes with a force of 180 N in the same direction. Determine whether the forces acting on the couch are balanced or unbalanced.

The forces are unbalanced because the net force does not equal zero.

The forces are unbalanced because the net force equals zero.

The forces are balanced because the net force does not equal zero.

The forces are balanced because the net force equals zero.

A student in gym class wants to climb the rope attached to the ceiling. They pull with a force of 80 N but do not move off the ground. Determine whether the forces acting on the student and rope are balanced or unbalanced.

The forces are balanced because the net forces equal zero.

The forces are unbalanced because the net forces equal zero.

The forces are balanced because the net forces do not equal zero.

The forces are unbalanced because the net forces do not equal zero.

A student in gym class wants to climb the rope attached to the ceiling. They pull with a force of 80 N but do not move off the ground. Identify and explain what forces are at work as the student attempts to pull themselves up the rope. Select all such forces.

Earth’s gravitational force is applied downward on the student.

Applied forces act on both the student and the rope during contact.

Applied force is exerted by the student on the rope in the attempt to pull themselves up.

Normal force is exerted by the rope on the student equal and opposite to the applied force.

According to Newton’s Third Law, what happens when a runner pushes back against the ground to propel themselves forward?

The ground simultaneously exerts the same amount of force on the runner.

The ground simultaneously exerts twice as much force on the runner.

The ground simultaneously exerts half as much force on the runner.

The ground does not exert any force on the runner.

How are variables related to kinetic energy and gravitational potential energy similar and how are they different? Pick the terms, in order, that best complete the statement to answer this question. Kinetic energy is determined by an object’s ____________. Gravitational potential energy is determined by an object’s ____________.

mass and speed; height and mass

A person shoots an arrow. The first image shows before the arrow is shot. The second image shows after the arrow is shot. Which location in the diagram does the bow have elastic potential energy and which location does the arrow have kinetic energy?

Elastic potential energy: B; Kinetic energy: C

Elastic potential energy: C; Kinetic energy: B

Elastic potential energy: A; Kinetic energy: D

Elastic potential energy: D; Kinetic energy: A

You drop a tennis ball to the ground and it bounces back to your hand. When is the elastic energy in the ball that greatest?

Just before the ball starts to bounce upward

Just before the ball hits the ground

When the ball returns to your hand

Gemma and Mason are building model rockets. Each rocket has a small container filled with fuel at its base. The rockets are launched by lighting the fuel. Gemma decides to add a second container of fuel to her rocket. She claims that more fuel will cause her rocket to fly farther. Select the two reasons that support her claim.

There will be more stored chemical potential energy before launch.

There will be more kinetic energy after launch.

There will be more stored chemical potential energy after launch.

There will be more kinetic energy before launch.

Look at this image of two battery-operated toy cars that were built by students. One car has one battery and the other car has two batteries. Which of the following statements is true about the distance the two cars will travel?

The car with two batteries will travel farther because it has more mass and more chemical energy to transform into more kinetic energy.

The car with two batteries will travel farther because it has more mass, so it resists change in speed.

The car with one battery will travel farther because it has less mass, so the chemical energy can be transformed into more kinetic energy.

The car with one battery will travel farther because the chemical energy can be transformed into more speed.

LEDs are a newer type of light source used in many flashlights. These types of light sources are much smaller than old-fashioned light bulbs and don’t get as hot. Why do batteries in flashlights made using LEDs last longer than flashlights made using old-fashioned light bulbs?

Less electrical energy is transformed into thermal energy as heat.

Less electrical energy is transformed into elastic potential energy.

Less chemical energy is transformed into kinetic energy.

Less thermal energy is transformed into light.

People climb into inflated tubes at the top of a water park ride. They then ride on a steep flow of water to the bottom of the ride. How can you describe the change in energy of the tubes from the top to the bottom of the ride?

Some of the gravitational potential energy transfers into kinetic energy.

All of the gravitational potential energy transforms into kinetic energy.

All of the kinetic energy transforms into gravitational potential energy.

Some of the kinetic energy transfers into gravitational potential energy.

How can you describe the change in energy when a faster bumper car in an amusement park ride runs into a slower bumper car?

Kinetic energy transfers from one bumper car to another.

Kinetic energy transforms from one bumper car to another.

Gravitational potential energy transfers from one bumper car to another.

Gravitational potential energy transforms from one bumper car to another.

Plants cannot create energy. Instead they ________ light energy from the sun into potential ________ energy. Which terms best complete the sentence?

transfer; gravitational potential

States Of Matter Particle Models

States of Matter Particle Models

Authored by s. Carpenter

Science

6th Grade

NGSS covered

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42 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The image shows three samples of the same substance. Each sample has the same number of particles and weighs 1 gram. Study the spacing and arrangement of the particles in each sample to identify what is represented. Sample 1 is a because the particles . Which terms best complete the sentence?

gas; move freely

gas; vibrate in place

solid; are loosely connected

liquid; move freely

The image shows three samples of the same substance. Each sample has the same number of particles and weighs 1 gram. Study the spacing and arrangement of the particles in each sample to identify its state of matter. Sample 2 is . Sample 3 is a . Which of the following terms, in order, best complete the sentences?

gas; liquid

solid; liquid

liquid; solid

liquid; gas

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Study each sample in order to describe its mass, shape, and volume. Only sample 2 has a definite . Only samples 2 and 3 have a definite . All three samples have a definite . Which terms, in order of appearance, best complete the sentences?

shape; volume; mass

mass; shape; volume

shape; mass; volume

mass; volume; shape

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Consider the relative kinetic energy of the particles in each sample. The particles in Sample 1 have ___ kinetic energy than the particles in Sample 2. The particles in Sample 1 have _ kinetic energy than the particles in Sample 3. The particles in Sample 2 have _____ kinetic energy than the particles in Sample 3. Which terms, in order of appearance, best complete these sentences?

greater; the less; the same

greater; greater; less

less; less; greater

less; the same; less

What is the same about the three samples of the substance? Select two answers.

Kinetic energy

Mass

Number of particles

Temperature

What are the differences between pure substances and mixtures? Select three answers.

Pure substances have the same properties throughout, but the parts of a mixture can have different properties.

Pure substances cannot be physically separated, but mixtures can be separated.

Pure substances contain just one type of particle, and mixtures contain more than one type of particle.

Pure substances do not have a uniform composition and mixtures always have a uniform composition.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between homogeneous mixtures and heterogeneous mixtures?

Homogeneous mixtures can be easily separated, and heterogeneous mixtures cannot be easily separated.

Homogeneous mixtures can be identified by properties, and heterogeneous mixtures cannot be identified by properties.

Homogeneous mixtures contain one substance, and heterogeneous mixtures contain more than one substance.

Homogeneous mixtures have a uniform composition, and heterogeneous mixtures do not have a uniform composition.

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States of Matter Particle Models

Study each sample in order to describe its mass, shape, and volume. Only sample 2 has a definite ________. Only samples 2 and 3 have a definite ________. All three samples have a definite ________. Which terms, in order of appearance, best complete the sentences?

What is the same about the three samples of the substance? Select two answers.

What are the differences between pure substances and mixtures? Select three answers.

What is the difference between homogeneous mixtures and heterogeneous mixtures?

Matter can be categorized as a pure substance, a homogeneous mixture, or a heterogeneous mixture. Which of the following are heterogeneous mixtures?

Matter can be categorized as a pure substance, a homogeneous mixture, or a heterogeneous mixture. Which of the following are heterogeneous mixtures?

Four liquids with different densities are poured into a container. Each liquid and its density are shown in the table: Olive oil 0.90 g/mL; Salt water 1.03 g/mL; Turpentine 0.85 g/mL; Water 1.00 g/mL. Where does each liquid end up in the container? Select two answers.

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Study each sample in order to describe its mass, shape, and volume. Only sample 2 has a definite . Only samples 2 and 3 have a definite . All three samples have a definite . Which terms, in order of appearance, best complete the sentences?