1) How does light travel? a) In a zigzag line b) In a straight line c) In a curved line 2) Which of these is not light source? a) The sun b) Fire c) Stars d) The moon e) A mobile phone 3) The speed of light is... a) 300 000 km/s b) 300 000 m/s c) 300 000 km/h d) 300 000 m/h 4) The Sun emits light so we call it.. a) yellow b) transparent c) luminous d) cold 5) What do you use to detect light? a) Eyes b) Ears c) Nose d) Tongue 6) Where does most of our light come from? a) Sun b) Moon c) Earth d) Pluto 7) What is faster than light? a) a plane b) sound c) nothing d) cars

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