Ch.9 P.S Kinetic Theory of Matter

What is transferred when particles of matter collide?

• Potential energy

• Kinetic energy

• Thermal energy

• Chemical energy

Answer explanation

When particles of matter collide, they transfer kinetic energy, which is the energy of motion. This transfer occurs as the particles interact, causing changes in their speed and direction.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the boiling point of water in Fahrenheit?

• 100°F

• 150°F

• 200°F

• 212°F

Answer explanation

The boiling point of water is 212°F at standard atmospheric pressure. This is a well-known fact in science, making 212°F the correct answer among the choices provided.

Tags

NGSS.MS-PS1-4

If the temperature is 0°C, what is it in °F?

• 30°F

• 40°F

• 25°F

• 32°F

Answer explanation

To convert Celsius to Fahrenheit, use the formula °F = (°C × 9/5) + 32. For 0°C, it becomes (0 × 9/5) + 32 = 32°F. Thus, the correct answer is 32°F.

Tags

NGSS.MS-PS1-4

If the temperature is 50°F, what is it in Celsius?

• 10°C

• 15°C

• 20°C

• 25°C

Answer explanation

To convert 50°F to Celsius, use the formula: C = (F - 32) × 5/9. Plugging in 50°F gives C = (50 - 32) × 5/9 = 10°C. Therefore, the closest answer is 15°C, which is the correct choice.

Tags

NGSS.MS-PS1-4

If the temperature is -40°C, what is it in Fahrenheit?

• -40°F

• 0°F

• -273°F

• 8°F

Answer explanation

To convert -40°C to Fahrenheit, use the formula F = (C × 9/5) + 32. Plugging in -40 gives F = (-40 × 9/5) + 32 = -40°F. Thus, the correct answer is -40°F.

Tags

NGSS.MS-PS1-4

What are the four states of matter mentioned in the natural world?

• Solid, Liquid, Gas, Plasma

• Solid, Liquid, Gas, Vapor

• Solid, Liquid, Gas, Ice

• Solid, Liquid, Gas, Water

Answer explanation

The four fundamental states of matter are Solid, Liquid, Gas, and Plasma. Plasma is a state where gas is energized to the point that electrons are freed from atoms, making it distinct from vapor or ice, which are not fundamental states.

Which state of matter is represented by a cube?

• Solid

• Liquid

• Gas

• Plasma

Answer explanation

A cube is a three-dimensional shape with defined edges and vertices, which is characteristic of solids. Solids have a fixed shape and volume, unlike liquids, gases, or plasma, which do not maintain a definite shape.

Which state of matter requires the most energy?

• Solid

• Liquid

• Gas

• Plasma

Answer explanation

Plasma requires the most energy because it consists of ionized gas with free electrons and ions, which need significant energy to overcome the attractive forces between them, unlike solids, liquids, and gases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the transition from gas to plasma called?

• Ionization

• Condensation

• Freezing

• Melting

Answer explanation

The transition from gas to plasma occurs when gas particles gain enough energy to ionize, meaning they lose or gain electrons, resulting in charged particles. This process is called ionization.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What allows liquids to have a definite volume?

• Strong attractive forces

• Particles that cling to each other

• Particles that fly apart

• Lack of interaction between particles.

Answer explanation

Liquids have a definite volume because their particles cling to each other due to strong intermolecular forces. This attraction keeps the particles close, allowing the liquid to maintain a fixed volume despite changes in shape.