Eleven Point Five

Your __________ vibrate when you talk

• stomach

• lips

• ears

• vocal cords

An oscilloscope shows sound ________

• vibrations

• patterns

• imitations

• waves

Tags

NGSS.MS-PS4-1

This fluid-filled snail-shaped sack in the inner ear contains hair cells attached to nerves which transmit sound information to the brain. 

• Cochlea

• Hammer

• Anvil

• Stirrup

How does increasing the amplitude of a sound wave affect the sound?

• it makes the sound louder

• it makes the sound travel faster

• it increases the wavelength of the sound

• it increases the frequency of the sound

Tags

NGSS.MS-PS4-1

What is the atomic number of the element with the symbol 'Na'?

• 10

• 11

• 12

• 13

Which of the following elements has an atomic mass of approximately 11.5?

• Boron

• Carbon

• Sodium

• Magnesium

If an element has an atomic number of 11, how many protons does it have?

• 10

• 11

• 12

• 13

What is the chemical formula for a compound formed by sodium and chlorine?

Tags

NGSS.MS-PS1-1

Which element is represented by the atomic number 11?

• Neon

• Sodium

• Magnesium

• Aluminum

What is the electron configuration of an element with atomic number 11?

Tags

NGSS.HS-PS1-1