NGSS.MS-PS1-4

People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?

• mechanical to thermal to electrical
• chemical to mechanical to thermal
• mechanical to chemical to sound
• chemical to sound to electrical

Tags

NGSS.MS-PS1-4

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

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NGSS.MS-PS1-4

If the tops were removed from the cylinders, the following would happen:

• The solid would fly out of the container
• The liquid would fly out of the container.
• The gas would fly out of the container.
• They ALL would fly out of the container.

Tags

NGSS.MS-PS1-4

Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a 

• physical change
• chemical change

Tags

NGSS.MS-PS1-4

What happens when liquid in a thermometer undergoes thermal expansion?

• Its volume decreases.

• Its particles get colder.

• Its particles spread out.

• Its particles expand.

Tags

NGSS.MS-PS1-4

Which statement is true?

• The quicker a molecule moves, the colder it is.

• The slower a molecule moves, the warmer it is.

• The quicker a molecule moves, the warmer it is.

Tags

NGSS.MS-PS1-4

When thermal energy is increased in a liquid and evaporation occurs, what state of matter does the liquid change into?

• Solid

• Gas

Tags

NGSS.MS-PS1-4

The process when a gas turns into a liquid

• Condensation

• Sublimation

• Freezing

• Evaporation

Tags

NGSS.MS-PS1-4

What are the main 3 states of matter?

• California, New York, Nevada

• Ice, air, water

• happy, sad, mad

• Solid, liquid, gas

Tags

NGSS.MS-PS1-4

What type of energy does an oven produce to bake a cake?

• Light energy

• Mechanical energy

• Sound energy

• Thermal energy

Tags

NGSS.MS-PS1-4