WorksheetsM9.1 and 9.2 Cat B
Total questions: 20
Worksheet time: 10mins
Light first enters the eye through?
lens
pupil
retina
The process by which visual targets are brought into sharp focus on the retina is called
The nerve which carries the nerve impulses involved in hearing sound is
Optic nerve
When information is being processed by our brains the first stage is
Interpretation
Perception
Response
Divided attention is needed when
People must monitor several sources of information to perform a single task
People are required to remain alert to stimuli over prolonged periods of time.
People are required to do more than one task at a time.
Information is easiest to retrieve from
What is the SHEL model based on?
Software, Hardware, Economics and Logistics.
Software, Hardware, Ergonomics and Liveware
Long term memory is classified into two types, semantic and episodic of which:
semantic memory tends to be lost in cases of amnesia.
episodic memory lasts between 5 and 10 seconds.
episodic memory can be influenced by expectations as to what should happen.
What purpose do the rods in the eye serve?
They detect fine detail in poor light.
They detect colour in good light.
The technical term for long sight is:
Myopia
Hypermetropia
Binocular vision
The part of the retina which has the highest visual acuity is the
fovea
The normal human audible frequency range is between
5 Hz to 30 kHz
20 Hz to 20 kHz
30 Hz to 25 kHz
10 Hz to 15 kHz
Ear defenders will reduce noise levels by approximately
10 dB
20 dB
40 dB
60 dB
At what distance should a person without hearing difficulties be able to hear an average conversational voice in a quiet room
4 metres (12 feet)
2 metres (6 feet)
1.2 metres (4 feet)
0.6 metres (2 feet)
Normal short term memory is capable of remembering up to
7 items for approximately 15 seconds
3 items for approximately 5 seconds
10 items for approximately 20 seconds
5 items for approximately 10 seconds
Sensory memory can remember
visual images for approximately 0.5 seconds
7 items for approximately 15 seconds
visual images for approximately 2 seconds
Auditory for approximately 5 seconds
Which of the following statements is true regarding the eye
The cornea is a transparent cap that protects the eye to some extent
The cornea is a coloured membrane that serves as an aperture controlling the amount of light.
The cornea is a light sensitive layer at the back of the eye, which converts the light into electrical signals that pass to the brain
The pupil of the eye grows smaller
when wearing sunglasses indoors
to focus the fovea
when it's dark
in bright light conditions
The acoustic reflex reduces sudden sound levels by 20dB when they exceed:
40dB
60dB
80dB
Which organisation is responsible for aircraft accident investigation in the UK
