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Movement and position

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Question 33

An autonomous quadcopter drone is carrying out deliveries.

a.

The diagram shows the drone accelerating vertically upwards. An autonomous quadcopter drone shown with a force arrow pointing vertically upwards from its center, labelled 'thrust'. Complete the diagram by adding another labelled force arrow representing the opposing force.

[2]
b.

The graph shows a 50-second journey made by the drone during its delivery run. A distance-time graph of the drone's journey over 50 seconds. The vertical axis represents distance in meters, marked from 0 to 120 m with major gridlines every 20 m. The horizontal axis represents time in seconds, marked from 0 to 50 s with major gridlines every 10 s. The graph consists of four segments: Stage A from (0,0) to (12, 48) as a steep straight line upwards; Stage B from (12, 48) to (24, 48) as a horizontal line; Stage C from (24, 48) to (44, 108) as a moderately steep straight line upwards; Stage D from (44, 108) to (50, 108) as a horizontal line. Each segment is labelled in a lettered box as A, B, C, and D respectively. Which stage of the graph shows the drone stopping for the shortest period of time?

[1]
c.

Which stage of the graph shows the drone moving at the fastest speed?

[1]
d.

State the equation linking average speed, distance moved, and time taken.

[1]
e.

Calculate the average speed of the drone during the first 35 seconds of its journey.

[3]
f.

Infrared waves are used by the drone's obstacle-detection cameras. State another use of infrared waves.

[1]
g.

State one similarity and one difference between infrared waves and visible light waves.

[2]

Movement and position Questions

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