Light and Sound
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Light Sources and Reflections
SubtopicLight Sources and Reflections under Light and Sound for Grade 3 IB.
Preview questions (no answers)
- 1.
Stars can be seen at night because they are:
A.Reflecting the Moon's light
B.Natural sources of light
C.Man-made lamps in the sky
D.Large mirrors
- 2.
If you want to reflect light to signal for help, which of these would work best?
A.A woolen blanket
B.A small glass mirror
C.A plastic water bottle
D.A dark backpack
- 3.
Which of these describes a beam of light from a lighthouse?
A.It moves in a straight path
B.It bends around the waves
C.It moves in a circle around the bulb
D.It travels in loops
Download the worksheet for Light and Sound - Light Sources and Reflections to practice offline. It includes additional chapter-level practice questions.
How Shadows are Formed
SubtopicHow Shadows are Formed under Light and Sound for Grade 3 IB.
Preview questions (no answers)
- 1.
If you use a triangle-shaped block to block the light, what shape will the shadow be?
A.A circle
B.A square
C.A triangle
D.A wavy line
- 2.
What is the name for the straight beams that light travels in?
A.Light waves
B.Light rays
C.Light circles
D.Light strings
- 3.
Why do shadows on the ground change their position during a sunny day?
A.Because the light source (the Sun) appears to move across the sky
B.Because the ground is moving up and down
C.Because the shadows are tired of staying in one place
D.Because the wind blows the shadows away
Download the worksheet for Light and Sound - How Shadows are Formed to practice offline. It includes additional chapter-level practice questions.
Vibrations and Sound Production
SubtopicVibrations and Sound Production under Light and Sound for Grade 3 IB.
Preview questions (no answers)
- 1.
If a drummer stops the drum skin from moving with their hand, what happens to the sound?
A.It gets louder
B.The sound stops
C.The pitch gets higher
D.Nothing changes
- 2.
What is the best way to describe a sound's 'pitch'?
A.How heavy an object is
B.How high or low a sound is
C.How bright a sound looks
D.How much a sound weighs
- 3.
If you are in a room with a lot of soft pillows and carpets, the sounds usually seem quieter. This is because soft materials:
A.Absorb or soak up the vibrations
B.Make more vibrations
C.Are very loud themselves
D.Create more light
Download the worksheet for Light and Sound - Vibrations and Sound Production to practice offline. It includes additional chapter-level practice questions.
Pitch and Volume
SubtopicPitch and Volume under Light and Sound for Grade 3 IB.
Preview questions (no answers)
- 1.
Which of these would produce the lowest pitch sound?
A.Tapping a small nail
B.Hitting a large metal pipe
C.Dropping a pin
D.Whistling
- 2.
If a sound has a very high volume, it is considered:
A.Quiet
B.Loud
C.High pitched
D.Low pitched
- 3.
How does light usually travel?
A.In circles
B.In straight lines
C.In wavy zig-zags
D.It stays in one spot
Download the worksheet for Light and Sound - Pitch and Volume to practice offline. It includes additional chapter-level practice questions.