Physical Science Praxis Prep

Ally is working in a laboratory, and she transfers a beaker containing a hot solution from the lab table to a cool water bath. Which of the following parts of the system experiences the greatest increase in heat energy?

• Ally

• beaker

• lab table

• water bath

Tags

NGSS.HS-PS3-4

A 10kg bowling ball and a 0.1 kg soccer ball are dropped from the same height of 50 feet. With no air resistance, which of the following is accurate?

• The bowling ball will hit the ground first.

• The soccer ball will hit the ground first.

• The soccer ball will hit the ground last.

• Both balls will hit the ground first.

When unwrapping lunch, the plastic bag gets charged with a positive charge, and is attracted to negatively charged clothing. This best illustrates which of the following?

• magnetic force

• electrostatic force

• gravitational force

• acceleration force

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which direction is heat flowing in the picture?

• from the hand to the ice
• from the ice to the hand
• heat is not being transferred
• there is no way to tell

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Kate has two ice cubes, an empty glass, and a glass of water at room temperature. Which question could Kate answer most easily by conducting scientific inquiry?

• What is the temperature of the ice?

• How long does it take to freeze ice?

• Does ice melt faster in air or in water?

• What is the mass of an ice cube when it melts?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happens to green light when it shines on a green leaf?

• it is absorbed

• it is reflected

• it is distributed

• it turned red

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NGSS.MS-LS1-6

The pH scale measures ___.

• the strength of an acid

• the concentration of hydrogen ions

• the strength of hydrogen ions

• the amount of solution

Which of the following indicates that sound can get louder or quieter?

• pitch

• range

• tone

• volume

Tags

NGSS.MS-PS4-1

Which of the following is an example of a chemical change?

• rusting of iron

• melting butter

• breaking plate

• chewing candy

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following best describes the state of matter that has no exact shape or volume and its molecules are spread far apart and active?

• gas

• plasma

• volume

• liquid