Fig. 1.1 depicts children just before they start a race. They must cover 25 m, collect a small plastic ring, and return to the base line. A child finishes once they cross the base line while holding the plastic ring. Fig. 1.1 is labelled with: hooter, base line, 25 m, plastic rings.
(a(i))[1]
Suggest which equipment the teacher uses to measure a length of 25 m.
(a(ii))[1]
Determine the total distance for the race. distance = ......................... m
(b)[3]
Using this information, sketch a speed-time graph on Fig. 1.2, showing how this child's speed changes during the race.
(c(i))[1]
Determine how many seconds are in 4 minutes and 20 seconds. time = ......................... s
(c(ii))[3]
Calculate the child’s average speed. average speed = ......................... m/s
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “1 m metre rule” …