Particles in Motion

The greater the kinetic energy the ______ the temperature.

• lower

• greater

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When particles move faster they bump into each other and need more space. This is called ____.

• random motion

• diffusion

• thermal expansion

• thermal contraction

Tags

NGSS.MS-PS1-4

What best describes the particles in a solid?

• close together and moving freely

• far apart and moving freely

• close together and vibrating in place

• far apart and vibrating in place

Tags

NGSS.MS-PS1-1

When a substance is heated, the particles gain energy and move apart. The volume of the substance being heated ______.

• increases

• decreases

• stays the same

Tags

NGSS.MS-PS1-4

A large balloon is taken to a shady area and filled with cool air. The balloon is then taken to a bright, sunny location. After a short time, the balloon begins to expand. WHAT explanation does this investigation verify?

• A balloon filled with cool air will rise into the atmosphere

• the sunlight had no effect on the balloon

• as particles gain energy the material takes up more space

Tags

NGSS.MS-PS1-4

The movement of substances from an area of high concentration to an area of low concentration.

• temperature

• kinetic energy

• diffusion

• particles

Kinetic energy is energy of ________.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What could cause gas particles to expand in the balloon?

• The particles being heated

• The particles being cooled

• The particles being compressed

• The particles increasing in size

Tags

NGSS.MS-PS1-4

What TWO factors affect the kinetic energy of a substance?

• Mass and speed

• Shape and size

• Temperature and pressure

• Color and texture

Tags

NGSS.MS-PS3-1

What would happen to gas particles if they lost kinetic energy?

• They would lose speed and get closer together

• They would lose speed and move farther apart

• They would speed up and move farther apart

• They would speed up and get closer together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5