On Level Physics Slo

The following graph models the motion of a hiker.

Which segment on the graph represents the hiker’s greatest speed?

• A

• B

• C

• D

The following graph models the motion of a car.

What is the car’s acceleration from t = 10 seconds to t = 12 seconds?

• 2 m/s/s

• -2m/s/s

• 4 m/s/s

• -4 m/s/s

Tags

NGSS.HS-PS2-1

In the study of thermodynamics, which statement is true about the ENTROPY?

• Entropy refers to DISORDER, the unusable energy that escapes a system.

• Entropy refers to the balance of temperature among two or more systems.

• Entropy refers to the average kinetic energy of the molecules.

• Entropy refers to the inability to destroy or create energy.

Tags

NGSS.HS-PS3-4

Rank the following samples from greatest kinetic energy of the molecules to least kinetic energy of the molecules:

• A > B > C > D

• B > A > C > D

• B > A > D > C

• D > C > B > A

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A tuning fork vibrating in air produces sound waves. These waves are best classified as

• Transverse, because the air molecules are vibrating parallel to the direction of wave motion

• Transverse, because the air molecules are vibrating perpendicular to the direction of wave motion

• Longitudinal, because the air molecules are vibrating parallel to the direction of wave motion

• Longitudinal, because the air molecules are vibrating perpendicular to the direction of wave motion

Suppose a scientist detects an electromagnetic wave with a frequency higher than those of gamma rays. The scientist labels this wave a Z-ray. Which of the following would always be true of a Z-ray?

• A Z-ray would have a lesser amplitude than gamma rays.

• A Z-ray would have a greater amplitude than gamma rays.

• A Z-ray would have a shorter wavelength than gamma rays.

• A Z-ray would have a longer wavelength than gamma rays.

Tags

NGSS.HS-PS4-1

Doctors often use sonograms rather than X-rays to produce images of interior structures of people. Which of these best describes the advantage of using sound waves rather than X-rays in this situation?

• Sound waves travel fast, which allows the doctor to quickly view the image.

• Sound waves have no radiation, which reduces the chance of harming the person.

• Sound waves stimulate the person's hearing.

• Sound waves travel through liquids, which allow them to pass through structures.

Light passes from medium 1 into medium 2 and bends along the path shown below. Which of the following statements is correct?

• Medium 1 is less dense than medium 2

• Medium 1 is denser than medium 2

• The speed of the light is greater in medium 2 than in medium 1.

• The frequency of light is greater in medium 1

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

A negatively charged plastic tube is brought near a neutral aluminum can sitting on its side. Which of the following statements is true?

• The side of the can marked A will become positive and the can will roll toward the tube.

• The side of the can marked B will become positive and the can will roll toward the tube.

• The side of the can marked A will become negative and the can will roll away from the tube.

• The side of the can marked B will become negative and the can will roll away from the tube.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following diagrams represents resistors connected in series?

• Diagram A only

• Diagram B only

• Diagram C only

• Diagrams A and C