Physics Is Illuminating

Objects that emit light are...

• Luminous

• Non luminous

• Reflective

• Fluorescent

Light travels in...

• Longitudinal waves

• Transverse Waves

• Straight lines

• Curved lines

• a vacuum

The correct ray diagram is...

• A

• B

• C

Which are luminous?

• The Sun

• A fire

• A fluorescent highlighter pen

• A book

If 'C' is 20 degrees, then 'E' must be...

• 70 degrees

• 90 degrees

• 160 degrees

• 20 degrees

The normal line is...

• A

• B

• C

• D

• E

The angle of incidence is...

• A

• B

• C

• D

• E

The angle of incidence is always...

• bigger than the angle of reflection

• the same size as the angle of reflection

• smaller than the angle of reflection

• 90 degrees

Measure than angle of incidence between...

• A & B

• B & D

• B & F

• D & F

A red object looks red because...

• It absorbs all colours of light

• It reflects all colours of light

• It only absorbs red light

• It only reflects red light