Light and Sound Question bank

The frequency of a sound wave is known as this.

• amplitude
• pitch

• volume

• noise

A ___________ object is one that gives off (emits) light.

• luminous
• opaque
• transparent
• reflective

A yellow shirt appears yellow because it _________ all colours other than red and ______ .

• transmits, blue

• reflects, green

• absorbs, green

• absorbs, blue

All waves transfer ______ without transferring matter.

• heat
• energy
• light
• sound

Describe what happens to a light ray as it enters a glass block (from air). [3]

Light always travels in _______ _____ , which is why shadows form.

• zigzag patterns
• random directions
• curved paths
• straight lines

Which is NOT a primary colour of light?

• Green
• Yellow
• Red
• Blue

Name the three primary colours of light.

• yellow, cyan, magenta
• orange, purple, pink
• red, green, blue
• black, white, gray

Name the three secondary colours of light. [3]

• cyan, magenta, yellow
• pink, turquoise, brown
• orange, purple, green
• red, green, blue

Sound is an example of this type of wave.

• longitudinal
• transverse
• mechanical
• electromagnetic