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WorksheetsG5 - Chapter 8 Practice 2
Total questions: 36
Worksheet time: 40mins
The image formed by a plane mirror is ____.
real and reversed
real and upright
upright and reversed
virtual and inverted
what is this ?
mirror
lens
which type of mirrors ?
plane
concave
convex
What is the correct order of the visible light spectrum?
Red, yellow, orange, blue, violet, indigo
Violet, purple, indigo, blue, green, yellow, orange
Green, yellow, blue, indigo, red, orange,
Red, orange, yellow, green, blue, indigo, violet
What wave has the longest wavelength and lowest energy?
Gamma rays
Infrared
Radio
Visible light
An example of a wave with a short wavelength and high energy is a
Gamma Ray
Microwave
Visible light wave
Infrared wave
A refracting telescope uses _______ to focus light.
Lenses
Mirrors
Lasers
Water
Reflecting telescopes use _______ to focus light.
Lenses
Glass
Mirrors
Lasers
The diagram shows
refraction of light.
absorption of light.
reflection of light.
scatter of light.
Which is the reflected ray?
A
B
C
D
Which is the reflected ray?
A
B
C
D
Which is the reflected ray?
A
B
C
D
Which is the reflected ray?
A
B
C
D
The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?
The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.
Why?
Light travels in a straight line
Light is refracted
Light is reflected
Light travels in two different mediums
Tick the correct of TWO devices which use the principle of light reflection in our daily lives.
The human perception of how much energy a sound wave carries is called
frequency
loudness
distance
Some animals use this to navigate and hunt
frequency
ecolocation
vibration
Sound needs a ____ to travel through
frequency
medium
echolocation
small
The ___ energy a sound wave has the ____ the sound
more, softer
less, louder
less, softer
What is echolocation?
The way bats fly.
The noise dolphins make underwater.
High-frequency sounds that help animals locate things
The food rabbits eat.
Which animal does not use echolocation?
Bat
Dolphin
Moth
Bee
Echolocation helps animals do what 2 things ...
Locate food
Sleep better
Navigate
Avoid predators
Dolphins use echolocation to replace what sense?
Sight
Hearing
Taste
Smell
How do you Evaluate your learning for this chapter
What are the points you still need help to understand
ما النقاط التي لازلتي تحتاجين لمساعدة حتى تتمكنين من فهمها
