11581205
Descripción
Test por Jeffrey Piggott, actualizado hace más de 1 año
|
Creado por Jeffrey Piggott
hace casi 7 años
|
|
Pregunta 1
Pregunta
Which of these statements is true?
Respuesta
-
Light travels in straight lines.
-
Light is stopped when it meets a solid object.
-
Light does not travel in straight lines.
-
Light will only travel for about 2000 km before it stops
Pregunta 2
Pregunta
Which phrase best completes the following sentence? We see things because:
Respuesta
-
they are luminous.
-
the Sun shines on them.
-
light from them enters our eyes.
-
light from our eyes shines on them.
Pregunta 3
Pregunta
Shadows are formed because:
Respuesta
-
light will only travel a certain distance before it stops.
-
a substance called ‘darkness’ collects behind some objects.
-
some objects do not give out light in all directions.
-
light cannot go through some objects.
Pregunta 4
Pregunta
Which statement is true?
Respuesta
-
Sound travels faster than light.
-
Light does not travel. It is either on or off.
-
Light travels faster than sound.
-
Light and sound travel at the same speed.
Pregunta 5
Pregunta
Opaque objects can:
Respuesta
-
transmit and reflect light.
-
transmit and absorb light.
-
reflect and absorb light.
-
only reflect light.
Pregunta 6
Pregunta
Which of these will absorb the most light?
Respuesta
-
a white sheet of paper.
-
a sheet of clear glass.
-
a black piece of card.
-
an orange piece of card.
Pregunta 7
Pregunta
How are eyes and pinhole cameras similar?
Respuesta
-
They both form an upside-down image.
-
They both use a lens to focus light.
-
They both convert light to electrical signals.
-
They both take photographs.
Pregunta 8
Pregunta
Which part of the eye converts light energy to electrical signals?
Respuesta
-
the lens
-
the optic nerve
-
the pupil
-
the retina
Pregunta 9
Pregunta
Which of these statements is true?
Respuesta
-
Light bounces evenly off rough surfaces.
-
Light bounces evenly off smooth surfaces like mirrors.
-
Light bounces off mirrors in all directions.
-
Light does not bounce off mirrors.
Pregunta 10
Pregunta
A plane mirror is:
Respuesta
-
a flat mirror.
-
a curved mirror.
-
a shiny mirror.
-
a mirror used in aeroplanes.
Pregunta 11
Respuesta
-
20°
-
30°
-
40°
-
60°
Pregunta 12
Pregunta
Your image in a mirror:
Respuesta
-
is not as good looking as I am.
-
is upside down.
-
is always bigger than you.
-
seems to be behind the mirror.
Pregunta 13
Pregunta
Refraction is what happens when light:
Respuesta
-
hits an opaque object.
-
bounces off a mirror.
-
is scattered unevenly by a rough surface.
-
changes direction as it goes from one substance into another at an angle.
Pregunta 14
Pregunta
Refraction occurs because:
Respuesta
-
light speeds up when it goes from air to glass or water.
-
light slows down when it goes from air to glass or water.
-
light stops when it goes from air to glass or water.
-
light reflects inside transparent materials.
Pregunta 15
Pregunta
Which diagram shows the correct rays?
Respuesta
-
Image:Rays A (binary/octet-stream)
-
Image:Rays B (binary/octet-stream)
-
Image:Rays C (binary/octet-stream)
-
Image:Rays D (binary/octet-stream)
Pregunta 16
Pregunta
Which statement is not true?
Respuesta
-
A rainbow is a spectrum of colours.
-
White light is made up of many colours.
-
A spectrum can only be made using paints.
-
A prism can split white light into a spectrum.
Pregunta 17
Pregunta
A red filter:
Respuesta
-
absorbs red light.
-
lets through all colours of light.
-
only lets red light through.
-
changes all the colours into red light.
Pregunta 18
Pregunta
Blue objects look blue because:
Respuesta
-
they reflect all colours.
-
they refract all colours.
-
they absorb blue light.
-
they reflect blue light.
Pregunta 19
Pregunta
Danny is wearing white shorts and a red shirt.
Which statement is most likely to be is true?
Respuesta
-
In blue light, his shorts look blue and his shirt looks black.
-
In blue light, his shorts look blue and his shirt looks red.
-
In red light, his shorts look red and his shirt looks black.
-
In green light, his shorts look red and his shirt looks yellow.
Pregunta 20
Pregunta
Why does a lens change the path of light?
Respuesta
-
Light changes direction when it goes into the glass and when it comes out of it.
-
Light changes direction in the centre of the lens.
-
Light is reflected by the surface of the lens.
-
Light travels faster in glass than it does in air.
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.