P6 quiz term 1 week 7

Ganesh placed three objects, X, Y and Z, at different distances in front of a screen as shown below. All three objects are of the same height and are made from the same material. Which of the following diagrams correctly shows the shadows of the objects on the screen?

• Diagram 1

• Diagram 2

• Diagram 3

• Diagram 4

Rose was standing in a room with a box as shown below. Rose is able to see the box in the room. Which one of the following correctly describes the path of light that makes it possible for Rose to see the box?

• From the box to the lamp to Rose's eyes.

• From the lamp to the box to Rose's eyes.

• From the lamp to Rose's eyes to the box.

• From Rose's eyes to the box to the lamp.

In a wooden box, objects P and Q are placed touching each other. Heat flows from P to Q. Which statement explains why heat flows from P to Q?

• P has more mass than Q.

• P is at higher position than Q.

• P is at a higher temperature than Q.

• P is a better conductor of heat than Q.

Minah conducted an experiment as shown below. She used a light sensor to measure the amount of light on the screen. She changed the position of one of the items in the experiment and recorded her observations for each position as shown in the table. What change did Minah make?

• torchlight was moved towards the object

• torchlight was moved away from the object

• object was moved towards the torchlight

• screen was moved towards the torchlight

Eric has two cups, A and B, made of material P. He poured equal amount of hot water into each cup. Cup A has no handle and it was too hot for him to hold but he can hold cup B more easily as shown below. Which of the following explains why Eric can hold cup B easily but not cup A?

• Cup A is a good conductor of heat.

• Cup B is a poor conductor of heat.

• Distance between heat source and his hand is further in cup B.

• Cup A is a poor conductor of heat but the handle of cup B is not.

Which of the following is not needed for photosynthesis?

• oxygen

• carbon dioxide

• light

• water

A pot of plant was placed under the sun to find out the effect of different conditions on photosynthesis. The experiment was set up as shown below. Which leaf/leaves can photosynthesize?

• P only

• Q only

• P and R only

• P , Q , R

Which of the following shows energy conversion during photosynthesis?

• 1

• 2

• 3

• 4

Kai Ming conducted an experiment using four water samples, A, B, C and D, He used the same amount of water sample and water plants to set up the experiment as shown below. A measuring device was installed at the top of the set-up to measure the volume of gas collected. After six hours, the amount of gas collected for each water sample was recorded in the table below. Which water sample is most cloudy?

• A

• B

• C

• D

A ball was moving downwards as shown below. Which of the following is correct?

• 1

• 2

• 3

• 4