NGSS.4-PS4-1

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.4-PS4-1

Which vocabulary term is used to identify the distance between points C & G?

• Amplitude
• Crest
• Frequency
• Wavelength

Tags

NGSS.4-PS4-1

What happens when we hear an echo?

• We know there is danger
• there must be someone yelling back to us
• Sound is reflected off a surface and repeated back
• sounds waves are traveling really fast

Tags

NGSS.4-PS4-1

Which is an example of a vibration?

•  A cat running as fast as it can 
• A light going on and off
• Up and down movement of a motor 

Tags

NGSS.4-PS4-1

Put the visible light colors in order from longest wavelength to shortest wavelength

• Violet, Indigo, Blue, Green, Orange, Yellow, Red
• Red, Yellow, Green, Orange, Violet, Blue, Indigo
• Red, Orange, Yellow, Green, Blue, Indigo, Violet

Tags

NGSS.4-PS4-1

What color has the longest wavelength?

• Black

• Green

• Purple

• Red

Tags

NGSS.4-PS4-1

The pitch of a stringed instrument can be affected by

• the length of the bow being rubbed across strings

• the size of a player's fingers

• the length and thickness of its strings

• how much energy is used when it is plucked

Tags

NGSS.4-PS4-1

Halfway between a crest and a trough

• resting point

• trough

• wavelength

• sound

Tags

NGSS.4-PS4-1

The horizontal distance between crests

• amplitude

• frequency

• crest

• wavelength

Tags

NGSS.4-PS4-1

A tsunami is a powerful ocean _________.

• fish

• boat

• wave

• ocean

Tags

NGSS.4-PS4-1