Which type of energy is formed by vibrating objects?

• light energy

• sound energy

• thermal energy

• electrical energy

Which type of energy does moving water have?

• electrical

• kinetic

• thermal

• potential

Tags

NGSS.MS-PS3-5

A guitarist strums two strings of the same thickness on a guitar. The first string vibrates more quickly than the second string.

What is true about the pitch of the strings?

• The first string has a higher pitch than the second string.

• The second string has a higher pitch than the first string.

• The first string and the second string have the same pitch.

• The pitch of the second string depends on the pitch of the first string.

Which is the best description of a sound wave when the pitch of the sound is very high?

• It has a low frequency.

• It has a high frequency.

• It has no frequency.

• It has both frequencies.

How do white light waves act when they enter a prism?

• They are reflected.

• They become raindrops.

• They bend or refract.

• They are absorbed.

Tags

NGSS.MS-PS4-2

Which of the following can act as a prism?

• a radio

• a raindrop

• a piece of paper

• a laser

How is heat from a campfire transferred to people?

• conduction

• insulation

• convection

• radiation

Which of the following shows convection?

• The sun warms your skin?

• You rub your hands together quickly.

• A metal spoon in soup becomes warm.

• Warm air moving upward in a greenhouse.

Tags

NGSS.MS-ESS2-6

What might cause ice to melt after you have skated on it?

• wind from skates movement

• friction from skates blade

• noise from skates

• size of the skates

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

If you want to stay cool while playing outside on a sunny day, which is better to wear?

• White T-shirt

• Rainbow T-shirt

• Black T-shirt

• Green T-shirt

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4