Georgia Physical Science

S8P1e The model shows a neutral atom. How many protons are in this atom?

• 2

• 4

• 5

• 9

Tags

NGSS.MS-PS1-1

When enough heat is added to liquid water, it boils, and bubbles of water vapor rise to the surface and into the air. Which type of change is this and why?

• a chemical change because gas is produced

• a chemical change because heat is produced

• a physical change because the identity fo the substance changes

• a physical change, because the substance changes state

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

According to the law of conservation of matter, which of the following is true?

• In a chemical reaction, the total mass of the reactants is greater than the total mass of the products.

• In a chemical reactions, the total mass of the reactants is equal to the total mass of the products

• In a chemical reaction, elements change into other elements, but new matter is not created

• In a chemical reaction, matter cannot change form, but new matter can be created

Tags

NGSS.MS-PS1-5

Student A and Student B are each standing on a skateboard. Student A pushes gently on Student B to start her moving. Student B starts moving away from Student A. What will happen to Student A and why?

• Student A will not move, because no forces are acting on her

• Student A will move toward Student B, because the same force affects both of them

• Student A will immediately stop moving because of friction

• Student A will move away from Student B, because an equal and opposite force pushes on her

Tags

NGSS.MS-PS2-1

What is the term for a change that alters the form of a substance but not its chemical composition?

• Chemical change

• Physical change

• Biological change

• Nuclear change

Tags

NGSS.MS-PS1-4

What is the term for the smallest particle of a compound that has all the properties of that compound?

• Atom

• Molecule

• Element

• Ion

Tags

NGSS.MS-PS1-1

Describe the process of erosion and its impact on geographical features.

• Erosion is the breakdown of rocks by chemical reactions, leading to the formation of new minerals.

• Erosion is the movement of sediment by wind, water, or ice, which can reshape landscapes.

• Erosion is the process of mountain formation due to tectonic activity.

• Erosion is the creation of new landforms through volcanic activity.

Answer explanation

Erosion involves the movement of sediment by natural forces like wind, water, or ice, which significantly alters landscapes by shaping valleys, cliffs, and other geographical features.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Explain the role of the equator in determining climate zones.

• The equator receives the least sunlight, leading to cooler climates.

• The equator receives the most direct sunlight, resulting in warmer climates.

• The equator has no effect on climate zones.

• The equator only affects climate in the Southern Hemisphere.

Answer explanation

The equator receives the most direct sunlight due to its position, leading to consistently warmer temperatures. This results in tropical climates, which are characterized by high humidity and precipitation, distinguishing it from other climate zones.

Tags

NGSS.MS-ESS2-6

How is an object's mass related to the force needed to accelerate the object?

• Mass determines the direction of the force needed

• Mass determines the kind of force needed

• The greater the mass, the greater the force needed

• The smaller the mass, the greater the force needed

Tags

NGSS.MS-PS2-2

Which of the following statements about gravitational fields is true?

• Gravitational fields affect objects only when two objects are touching

• Gravitational fields affect objects only if the objects are not in contact

• Any object that has a mass is surrounded by a gravitational field

• Only very massive objects, such as Earth, are surrounded by a gravitational field

Tags

NGSS.MS-PS2-5