Specimen Paper Wrong Again

Question 1

Dezvribe how students could develop their investigation to investigate hoe feaction time changes eith another variable

Answer 1

Use larger group of students and how it varies with age/height

Question 2

Describe how absorbing an electrons affects proton number and nucleon number of nucleus

Answer 2

Decreade in proton number by 1, mass numbrr doesnt change

Question 3

Describe how speed of trolley varies eith changes in height made

Answer 3

Ss hright increases, speed increases, greatest speed change

Question 4

Devise experiment to find effect of different surfaces on average speed of trolley

Answer 4

Use 3 different surfaces, control variables, find method to find speed and get averages

Question 5

Explain what happens to wavelength of light whenit passes from air to glasses

Answer 5

Wavelength of loght decrwases becayse wavelength ratio of wave velocity to frequency, frequrncy stays same as velocity reduces at boundary

Question 6

A and B wavefront describe what happens when going to glass block

Answer 6

A reaches block before B
A moves into glass and slows
As light travels more slowly in glass
B still in air so is travelling daster than A
Causes wavefront to refract
B will travel further than A when hitting glass ock
Therefore whole wavefront refracts towards normal
As other face A exits first so process reversed