general wave properties

Question 1

what is a transverse wave?

Answer 1

its a wave which travels in a direction perpendicular to the direction of vibrations

Question 2

what is a longitudinal wave?

Answer 2

its a wave which travels in a direction parallel to the direction of vibrations

Question 3

what is a wavefront?

Answer 3

its the line that joins all the peaks of a wave

Question 4

what is the amplitude of a wave?

Answer 4

its the maximum displacement from the equilibrium position.

Question 5

what is the wavelength of a wave?

Answer 5

its the horizontal distance between two successive crests or successive troughs

Question 6

what is the frequency of a wave?

Answer 6

its the number of complete waves generated per second

Question 7

what is the period of a wave?

Answer 7

its the time taken to generate one complete wave

Question 8

what is the speed?

Answer 8

its the distance moved by a wave in one second

Question 9

what is the compression of a wave?

Answer 9

its a region of higher pressure

Question 10

what is the rarefaction of a wave?

Answer 10

its the region of lower pressure

Question 11

what is an ultrasound?

Answer 11

its the type of sound wave with frequencies greater than 20kHz

Question 12

what is infrasound?

Answer 12

its the type of sound wave with frequencies lower than 20Hz

Question 13

what is an echo?

Answer 13

its the reflection of sound waves from a surface, heard as a separate or series of sounds

Question 14

what is the law of electrostatics?

Answer 14

it states that like charges repel and unlike charges attract

Question 15

what is an electric field?

Answer 15

its a region in which an electric charge experiences a force

Question 16

what is an electric field line?

Answer 16

its the path a positive charge would take if its free to move

Question 17

define physical quantity

Answer 17

its a quantity that can be measured with numerical magnitude and unit

Question 18

define scalar vectors

Answer 18

quantities with magnitude