VQ 20

Slow vibrations of frequencies lower than 20 Hz; any sound with a frequency below the range of human hearing

• audible range

• Doppler Effect

• infrasound

• ultrasound

Any sound wave with frequencies higher than 20,000 Hz; any sound with a frequency above the range of human hearing

• audible range

• Doppler Effect

• infrasound

• ultrasound

Tags

NGSS.HS-PS4-1

How fast or slow sound waves pass through an elastic medium. It varies by material

• echo

• Doppler Effect

• speed of sound

• sound wave

Tags

NGSS.MS-PS4-2

A longitudinal wave that is caused by vibrations and that travels through a material medium.

• echo

• Doppler Effect

• speed of sound

• sound wave

Tags

NGSS.MS-PS4-2

List the steps of the scientific method

d

e

f

c

b

a

Draw conclusions

Conduct experiment

Ask a question

Form a hypothesis

Analyze results

Communicate results

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

One of the 2 days a year on which the direct rays of the Sun reach the farthest from the equator

• equinox

• solstice

• revolution

• rotation

Tags

NGSS.MS-ESS1-1

In a study, which cells are found in COVID-19 patients 'bode well' for long-term immunity?

• P-cell

• D-Cell

• T-Cell

• Endothelial Cells

When experts talk about flattening the curve, what does that mean?

• It’s an axiom that means follow the evidence, rather than trust appearances, such as the earth appearing flat when it is actually round

• It means to slow the spread of a virus to reduce the peak number of cases and related demands on hospitals and infrastructure

• It means to arrive at the point in the pandemic when the number of daily deaths due to COVID-19 are flat

True/False: COVID-19 vaccines do NOT affect a person’s DNA (genetic material)

• TRUE

• FALSE