Physics Paper 2 Exam
Questions And Answers
The battery in an electric car needs to be recharged.
Suggest two factors that affect the distance an electric car can travel
before the battery needs to be recharged. correct answer- capacity of the
battery
speed • mass / weight
uphill / downhill
stopping at traffic lights
condition of the road
(air) temperature
(incorrect) tyre pressure
streamlining of the car
Write down the equation which links acceleration (a), change in velocity
(Δv) and time taken (t). correct answer- acceleration = change in
velocity/time (taken)
a = Δv/t
The maximum acceleration of the car is 20 m/s.
Calculate the time taken for the speed of the car to change from 0 m/s to
28 m/s at its maximum acceleration. correct answer- 20 = 28/t t = 28/20
1.4 (s)
In a trial run, the car accelerates at 10 m/s box 2 until it reaches its final
velocity.
distance travelled by the car = 605 m
initial velocity of the car = 0 m/s
, Calculate the final velocity of the car correct answer- v2 (- 02 ) = 2 × 10 ×
605
v2 = 12 100
v = 110 (m/s)
Write down the equation which links distance (s), force (F) and work done
(W). correct answer- work done = force × distance
W = Fs
When travelling at its maximum speed the air resistance acting on the car
is 4000 N.
Calculate the work done against air resistance when the car travels a
distance of 7.5 km at its maximum speed. correct answer- s = 7500 (m)
W = 4000 × 7500
W = 30 000 000 (J)
A student used a ray box to shine a ray of light through air into a glass
block. box
The student investigated how the angle of refraction varied with the angle
of incidence.
Table 1 shows the results
Describe a method the student could have used to obtain the results in
Table 1.
Your answer may include a labelled diagram. correct answer- • place a
glass block on a piece of paper
• draw around the glass block
• use the ray box to shine a ray of light through the glass block • mark the
ray of light entering the glass block
• mark the ray of light emerging from the glass block
• join the points to show the path of the complete ray through the block
• and draw a normal line at 90 degrees to the surface
• use a protractor to measure the angle of incidence
• use a protractor to measure the angle of refraction
Questions And Answers
The battery in an electric car needs to be recharged.
Suggest two factors that affect the distance an electric car can travel
before the battery needs to be recharged. correct answer- capacity of the
battery
speed • mass / weight
uphill / downhill
stopping at traffic lights
condition of the road
(air) temperature
(incorrect) tyre pressure
streamlining of the car
Write down the equation which links acceleration (a), change in velocity
(Δv) and time taken (t). correct answer- acceleration = change in
velocity/time (taken)
a = Δv/t
The maximum acceleration of the car is 20 m/s.
Calculate the time taken for the speed of the car to change from 0 m/s to
28 m/s at its maximum acceleration. correct answer- 20 = 28/t t = 28/20
1.4 (s)
In a trial run, the car accelerates at 10 m/s box 2 until it reaches its final
velocity.
distance travelled by the car = 605 m
initial velocity of the car = 0 m/s
, Calculate the final velocity of the car correct answer- v2 (- 02 ) = 2 × 10 ×
605
v2 = 12 100
v = 110 (m/s)
Write down the equation which links distance (s), force (F) and work done
(W). correct answer- work done = force × distance
W = Fs
When travelling at its maximum speed the air resistance acting on the car
is 4000 N.
Calculate the work done against air resistance when the car travels a
distance of 7.5 km at its maximum speed. correct answer- s = 7500 (m)
W = 4000 × 7500
W = 30 000 000 (J)
A student used a ray box to shine a ray of light through air into a glass
block. box
The student investigated how the angle of refraction varied with the angle
of incidence.
Table 1 shows the results
Describe a method the student could have used to obtain the results in
Table 1.
Your answer may include a labelled diagram. correct answer- • place a
glass block on a piece of paper
• draw around the glass block
• use the ray box to shine a ray of light through the glass block • mark the
ray of light entering the glass block
• mark the ray of light emerging from the glass block
• join the points to show the path of the complete ray through the block
• and draw a normal line at 90 degrees to the surface
• use a protractor to measure the angle of incidence
• use a protractor to measure the angle of refraction
