light

Question 1

What is diffused reflection

Answer 1

Reflection of light in many directions from an uneven surface

Question 2

What is regular reflection

Answer 2

Light bounces off a very smooth surface which produces a clear sharp image

Question 3

Concave mirrors

Answer 3

Concave mirrors curve inwards. When light is shone onto a concave mirror the light forms a focus point inside the curve. The light spreads out.

Question 4

Convex mirrors

Answer 4

Convex mirrors bend outwards. When light is shone onto a convex mirror it focuses it onto one point.

Question 5

Why do you see lightning before you hear thunder

Answer 5

Because light travels much faster than the speed of sound.

Question 6

Why does a straw look bent in water

Answer 6

This is because of refraction. This occurs when light passes through a transparent material. Light slows down when passing through the material and this changes its direction. The light bends towards the normal line.

Question 7

Light travels in the form of…

Answer 7

Waves

Question 8

What is refraction

Answer 8

Occurs when light passes through transparent material. This causes the light to slow down and bend towards the normal line.

Question 9

What is the difference between a longitudinal and transverse wave

Answer 9

Longitudail waves compress particles in front of the source. Transverse waves’ oscillations are perpendicular to the direction the wave is travelling.