Energy and Waves

A student places a skillet on a stove. After heating for 10 minutes, the student removes the skillet from stove. Which describes the kinetic energy of the molecules in the skillet during the investigation?

• The kinetic energy remains the same.

• The kinetic energy increases and then decreases.

• The kinetic energy decreases and then increases.

• The kinetic energy constantly increases.

Tags

NGSS.MS-PS1-4

Where does the ball have the greatest potential energy?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS3-2

A longitudinal wave is one where...

• The force used to make the wave moves parallel to the waves motion

• The force used to make the wave moves perpendicular to the waves motion

• The wave can travel through empty space

• The wave cannot travel through empty space

A transverse wave is one where…

• The force used to make the wave moves parallel to the waves motion

• The force used to make the wave moves perpendicular to the waves motion

• The wave can travel through empty space

• The wave cannot travel through empty space

The frequency of a wave is…

• Is how many waves pass each second

• Is measured in Hertz

• Is effected by the wavelength and the speed of the wave

• Both A and C

• All of the above

When a ray of light bounces off of a boundary, this is called…

• Reflection

• Refraction

• Rarefaction

• Compression

Tags

NGSS.MS-PS4-2

When a ray of light bends while going through different materials, this is called…

• Reflection

• Refraction

• Rarefaction

• Compression

Tags

NGSS.MS-PS4-2

True or false, the Doppler effect has an effect on the pitch of a sound wave

• True

• False

Which of the following choices best describes wave A as compared to wave B?

• Wave A has a longer wavelength, lower frequency, same amplitude

• Wave A has a shorter wavelength, higher frequency, same amplitude

• Wave A has a shorter wavelength, lower frequency, lower amplitude

• Wave A has a longer wavelength, higher frequency, higher amplitude

Tags

NGSS.MS-PS4-1

A sound wave is a mechanical wave, not an electromagnetic wave. This means that:

• a medium is required in order for sound waves to transport energy.

• particles of the medium move perpendicular to the direction of energy transport.

• particles of the medium regularly and repeatedly rotate around their rest postition.

• a sound wave transports its energy through a vacuum.

Tags

NGSS.MS-PS4-1