Demonstration of Learning - Grade 7 Science

Which TWO of the following statements correctly describe the relationship between temperature and the kinetic energy of particles in a substance?

• As temperature increases, the average kinetic energy of particles increases.

• As temperature decreases, particles move faster and have more kinetic energy.

• The kinetic energy of particles is directly proportional to the temperature of the substance.

• Temperature has no effect on the kinetic energy of particles in a substance.

• As temperature increases, particles become completely stationary.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which room would you expect the perfume scent to disperse most quickly throughout the air, and why?

• Room A, because cold air holds scents longer.

• Room B, because moderate temperatures are ideal for scent dispersion.

• Room C, because higher temperatures increase the kinetic energy of scent particles.

• All rooms will have the same rate of scent dispersion.

A student is investigating how temperature affects particle movement in soup. They observe the soup at room temperature and then after heating. Which statement correctly describes the change in particle behavior as the soup's temperature increases?

• The particles move faster and become more compact.

• The particles move slower and become less compact.

• The particles move faster and become less compact.

• The particles move slower and become more compact.

Tags

NGSS.MS-PS1-4

A student is observing a lava lamp in action. Which table correctly represents the relationship between temperature, particle movement, and kinetic energy for the wax in the lamp as it heats up and cools down?

• A. State | Temperature | Particle Movement | Kinetic Energy Cool Wax | Low | Slow | Low Heated Wax | High | Fast | High

• B. State | Temperature | Particle Movement | Kinetic Energy Cool Wax | Low | Fast | High Heated Wax | High | Slow | Low

• C. State | Temperature | Particle Movement | Kinetic Energy Cool Wax | Low | No movement | Zero Heated Wax | High | Fast | High

• D. State | Temperature | Particle Movement | Kinetic Energy Cool Wax | Low | Slow | High Heated Wax | High | Slow | Low

Tags

NGSS.MS-PS1-4

The temperature difference between the soda and the ice water affects the movement of particles in both substances, leading to the soda becoming colder. What is the primary reason for this phenomenon?

• The particles in the soda move faster than those in the ice water.

• The particles in the ice water transfer energy to the soda.

• The particles in the soda transfer energy to the ice water.

• The particles in both substances stop moving.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5