1) What is the source of light? a) The object which absorbs light b) The object which blocks light c) The object which we can see through d) The object which gives light 2) What is light? a) With the help we see in the dark b) With the help there is darkness c) With the help we can wash our hands d) With the help we dry our clothes 3) What are the natural sources of light? a) CFLs, LEDs b) Sun, stars c) Torches d) Lamps and matches 4) What are the artificial sources of light? a) Fire b) Thunderstorms c) Candle d) Moon 5) Which of these are luminous objects a) Stars b) Moon c) Desk d) Book 6) Which of these are non-luminous objects? a) Lamp b) Candle c) Matches d) Planets 7) Light is a form of _______ a) Food b) Energy c) Matter d) Electronic gadget 8) Lights speed is _______ a) 3 x 108  m/s b) 10 x 38  m/s c) 5 x 108  m/s d) 9 x 108  m/s 9) Light travels in a _______ a) Wobbly line b) Curved line c) Straight line d) Squary line 10) What are transparent objects? a) From which little light is passed b) From which light travels completely c) From which no light is passed

Light

על ידי
הדפסה
הטבעה

לוח תוצאות מובילות

סגנון חזותי

אפשרויות

החלף תבנית

האם לשחזר את הנתונים שנשמרו באופן אוטומטי: ?