2.2 Applied Investigations

Front

In the food color lab, the three different colors "mixed" at the same speed. True or False?

Back

False

Answer explanation

The statement is False because the three different colors did not mix at the same speed. Each color has its own properties that affect how quickly it disperses in the medium.

Front

The reason the colors end up mixing in the food color lab is because the particles in the water are always moving. True or False?

Back

True

Answer explanation

True. The colors mix in the food color lab because the particles in the water are in constant motion, allowing the food coloring to disperse and blend together.

Tags

NGSS.MS-PS1-4

Front

Why did the color in the hot water mix faster than the color in the cold water?

Back

It mixed faster because the particles move faster in substances that are hotter, so the particles moving mixed it up.

Answer explanation

The correct choice explains that in hot water, particles move faster due to higher energy, leading to quicker mixing of the color. This is a fundamental principle of how temperature affects particle movement and mixing.

Tags

NGSS.MS-PS1-4

Front

Is temperature the measure of the average amount of movement in particles of a substance?

Back

True

Answer explanation

True. Temperature measures the average kinetic energy of particles in a substance, indicating how much they move. Higher temperatures mean more movement, while lower temperatures indicate less movement.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What happens when a high-energy particle bumps a low-energy particle?

Back

The high energy particle gives energy to the low energy particle.

Answer explanation

When a high-energy particle collides with a low-energy particle, the high-energy particle transfers some of its energy to the low-energy particle, causing it to gain energy and move faster.

Tags

NGSS.MS-PS3-5

Front

Why do particles start to move faster when they warm up?

Back

They move faster because the particles are gaining energy.

Answer explanation

Particles move faster when they warm up because they gain energy. This increased energy causes the particles to vibrate and move more rapidly, leading to higher temperatures and faster movement.

Tags

NGSS.MS-PS1-4

Front

True or False: Fast particles slow down when they hit a slower particle.

Back

True

Answer explanation

True. When fast particles collide with slower particles, they transfer some of their kinetic energy, causing the fast particles to slow down.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

What type of transfer occurs when a stovetop transfers energy to a pan sitting on it?

Back

Conduction

Answer explanation

The energy transfer from the stovetop to the pan occurs through direct contact, which is known as conduction. This process involves the transfer of heat through materials without the movement of the material itself.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

When drawing a model, what do the little circles represent?

Back

Particles

Answer explanation

In models, little circles typically represent particles, which are the fundamental components of matter. This choice is correct as it directly relates to the visual representation of particles in scientific diagrams.

Tags

NGSS.MS-PS1-1

Front

Heating that happens when two things of different temperatures touch and the particles with more energy collide with particles with less energy and transfer their movement is also known as?

Back

Conduction

Answer explanation

Heating through direct contact, where energetic particles collide with less energetic ones, is called conduction. This process transfers heat between objects at different temperatures.