Light Mid-Topic Assessment

Name:

Date:

📚 Part 1: Multiple Choice Questions

Instructions: Choose the best answer for each question by filling in the circle.

1. Light travels as a type of wave. What type of wave is light?

Sound wave

Electromagnetic wave

Water wave

Mechanical wave

2. When light hits a mirror, what happens?

The light is absorbed

The light is reflected at the same angle

The light passes straight through

The light changes colour

3. What happens when light passes from air into water?

It speeds up and bends away from the normal

It slows down and bends towards the normal

It travels in a straight line with no change

It bounces back into the air

4. Which part of the eye controls how much light enters?

Lens

Retina

Iris

Cornea

✏️ Part 2: Short Answer Questions

Instructions: Answer each question using complete sentences. Show your working where appropriate.

5. A red filter is placed in front of a white light source. Explain what happens to the light and why we see the filter as red.

6. Draw a ray diagram showing light reflecting off a plane mirror. Label the incident ray, reflected ray, normal, and angles of incidence and reflection.

7. A person is short-sighted and cannot see distant objects clearly.
a) What type of lens is needed to correct this? ________________
b) Explain why this lens helps: ________________________________

🔬 Part 3: Application and Analysis

Instructions: Use your knowledge of light to solve these problems.

8. A swimming pool appears to be 1.2 metres deep, but when you jump in, it's actually 1.6 metres deep. Explain why the pool appeared shallower than it really was.

9. Complete this sentence about white light:

White light is made up of _________ different colours. When white light passes through a _________, it splits into these colours because each colour _________ by a different amount.

10. Extension: A student shines a torch through a green filter onto a red book. Predict what colour the book will appear and explain your reasoning.