Check Point Worksheet on Shadows
checkpointCHECKPOINT WORKSHEET ON LIGHT
Q1. It is night-time and the desk lamp is on. Light shines onto the key.
(a) (i) Draw one ray of light on the diagram to show the light shining from the lamp onto the key. Use a ruler. Put an arrow on the ray to show the direction of the light. 2 marks (ii) There is a patch of light on the wall. This light has been reflected from the key. Draw a reflected ray of light on the diagram. Use a ruler. 2 marks (b) There is a dark shadow on the table beside the mug. Explain how this shadow is formed. 2 marks Maximum 6 marks Q2. The diagram shows a lighthouse on a rock. It is night-time and there are boats at A, B, C, D and E moored in the water.
(a) On which boat, A, B, C, D or E, would the light from the lighthouse be brightest? 1 mark (b) Each boat makes a shadow on the water. (i) Draw a cross (X) on the diagram to show where the shadow of boat A will be. 1 mark
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(ii) Explain why the shadow forms there.
1 mark (c) The weather changes and the fog horn on the lighthouse makes a loud sound. On which boat, A, B, C, D or E, would the sound of the fog horn be quietest? 1 mark (d) Inside the lighthouse there is a powerful lamp and some mirrors. The diagram shows the lamp and a mirror. A ray of light from the lamp is shown. Carefully draw the ray which is reflected from the mirror. Use a ruler.
2 marks Maximum 6 marks Q3.
(a) Rockets are used to summon help from lifeboat crews. A rocket was sent high into the air above a seaside town. It exploded with a loud bang and a bright flash of light. Lisa observed the alarm flare being sent up. Which statement is correct? A: the bright flash of light was seen first B: the loud bang was heard first C: the flash of light was seen and the bang was heard at the same time 1 mark Give a reason for your answer. 1 mark
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(b) Some people were nearer to the rocket than Lisa. How did the sound seem to them? A: It was quieter. B: It
Q1. It is night-time and the desk lamp is on. Light shines onto the key.
(a) (i) Draw one ray of light on the diagram to show the light shining from the lamp onto the key. Use a ruler. Put an arrow on the ray to show the direction of the light. 2 marks (ii) There is a patch of light on the wall. This light has been reflected from the key. Draw a reflected ray of light on the diagram. Use a ruler. 2 marks (b) There is a dark shadow on the table beside the mug. Explain how this shadow is formed. 2 marks Maximum 6 marks Q2. The diagram shows a lighthouse on a rock. It is night-time and there are boats at A, B, C, D and E moored in the water.
(a) On which boat, A, B, C, D or E, would the light from the lighthouse be brightest? 1 mark (b) Each boat makes a shadow on the water. (i) Draw a cross (X) on the diagram to show where the shadow of boat A will be. 1 mark
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(ii) Explain why the shadow forms there.
1 mark (c) The weather changes and the fog horn on the lighthouse makes a loud sound. On which boat, A, B, C, D or E, would the sound of the fog horn be quietest? 1 mark (d) Inside the lighthouse there is a powerful lamp and some mirrors. The diagram shows the lamp and a mirror. A ray of light from the lamp is shown. Carefully draw the ray which is reflected from the mirror. Use a ruler.
2 marks Maximum 6 marks Q3.
(a) Rockets are used to summon help from lifeboat crews. A rocket was sent high into the air above a seaside town. It exploded with a loud bang and a bright flash of light. Lisa observed the alarm flare being sent up. Which statement is correct? A: the bright flash of light was seen first B: the loud bang was heard first C: the flash of light was seen and the bang was heard at the same time 1 mark Give a reason for your answer. 1 mark
2 PREPARED BY PREETI MANOJ
(b) Some people were nearer to the rocket than Lisa. How did the sound seem to them? A: It was quieter. B: It