Cambridge Primary Science 5 - Unit 4.1 and 4.2

How many sources of light are in the picture?

• 0

• 1

• 2

• 3

Quân is holding the flashlight. Côngh is waving his hand at Quân. Which light source allows Công to see Quân?

• The sun

• The flashlight

• The ceiling light

• Công can not see Quân.

Quân is holding a flashlight. The flashlight is a light source that produces a focused band of light called a ______________.

Which diagram(s) are correct?

• 
• 
• 
• 

The red lines with arrows in the diagram are called ________________.

Vân can see a(n) _____________ of her face ______________ in the _____________.

• photo, shown, mirror

• image, reflected, mirror

• image, depicted, mirror

• reflection, shown, mirror

We are able to see things because light _____________ off of objects and into our eyes.

Which of these ray(s) are incorrect?

• The red ray

• The blue ray

• The green ray

• They are all correct

We can add more rays to this diagram if we wanted. Which ray(s) would be correct?

• A ray from the large mirror to Bob's eyes.

• A ray from the light source to the back of Bill's head.

• A ray from Bill's eyes to the small mirror.

• A ray from Bill's eyes to Bob's eyes.

A ______________ and _______________ surface will reflect light the best.