What sensory structure does an elephant use to hear vibrations?

• knees

• tail

• feet

• ears

• back

The cushion on an elephant's foot is an example of a ______?

• wavelength of sound

• source of sound

• amplitude of sound

• receiver of sound

Why would an elephant freeze and press its cushion pad on the bottom of its feet to the ground?

• To catch prey

• To send messages

• To read vibrations

• To stretch

Tags

NGSS.MS-LS1-8

Which is a type of call one elephant might communicate to another?

• navigation instructions

• mating calls

• alarm cries

• all of the above

What sensory receptor helps elephants receive vibrations in the ground?

• Pacinian corpuscles in the feet

• Olfactory receptors in the nose

• chemoreceptors on their tongue

• infrared receptors

How do sound vibrations from an elephant travel through the air and the ground?

• The particles in the air and ground allow sound to pass through without any movement.

• The particles in the air and the ground near the sound source push the rest of the particles out of the way as they move through the air and the ground.

• The particles in the air and the ground move back and forth bumping one particle into the next as it travels.

• Sound vibrations travel through particles in the air but do not travel through anything in the ground.

Tags

NGSS.MS-PS4-2

What happens to a surfer at the beach?

• They will move up and down with the waves.

• They will move toward the shore with the waves.

• They will drift further out into the water.

• They will move side to side with the wave.

Tags

NGSS.MS-PS4-2

How are waves different near the shore compared to the open water?

• The waves by the beach build up higher and begin to crash over because the ocean floor becomes slanted as it approaches the shore.

• The waves by the beach build up higher and begin to crash over because the ocean floor becomes deeper as it approaches the shore.

• The waves by the beach do not move as much because the wind stops blowing near the beach.

• The waves by the beach only move the water up and down and do not push any objects along with the wave.

Tags

NGSS.MS-PS4-2

Why does a boat in the middle of the open water bounce up and down and side to side but stays in one place?

• Waves transfer matter but not energy.

• Waves transfer both matter and energy.

• Waves transfer energy but not matter.

Which wave has the more energy?

• 
• 
• 

Tags

NGSS.MS-PS4-1