Physics/Math

Question 1

A Newton (N) is derived from kilograms, ______, and seconds

Answer 1

meters

Question 2

“5 Meters” is a scalar or vector

Answer 2

A scalar, as it doesn’t have a direction

Question 3

To be a vector, we must know a magnitude/size and _______

Answer 3

direction

Question 4

displacement is in reference to a vector or scalar

Answer 4

it is a vector quality

Question 5

The scalar quantity for how fast something is going is _______

Answer 5

speed (think 2.5m/s)

Question 6

How fast something is going (with direction given)

Answer 6

velocity (think 2.5m/s to the right)

Question 7

electromagnetic fields are made up of ____

Answer 7

electric and magnetic waves

Question 8

speed of a wave (v) is equal to

Answer 8

v = λ x f

Question 9

on the visible color spectrum, violet has a (higher/lower) frequency than red

Answer 9

higher frequency, smaller wavelength

Question 10

T or F: polarized light can be seen in many directions

Answer 10

false, it is seen in only one direction

Question 11

When peaks and troughs of a wave line up, this is known as

Answer 11

constructive interference, and gives you double the sound

Question 12

when waves are out of phase, this causes

Answer 12

destructive interference, whcih cancels out sound

Question 13

light is a WAVE & a PARTICLE– this is also called

Answer 13

a photon

Question 14

Energy of a photon is equal to =

Answer 14

E= h x f (h is planks constant, 6.6 x 10^ -34 J xs ) and f=frequency, in Hz