Science

Question 1

Which statement is correct about wind?

Accepted Answer

3

Question 2

From the picture, when object A is rubbed against object B and then object B is placed near object C,object C will be sucked into moving next to object B.  Which are objects A, B, and C, respectively?

Accepted Answer

1

Question 3

When rub 2 balloons with dry cloth and place them close together, why is there a force of repulsion?

Accepted Answer

2

Question 4

Which one is responsible for distributing electrical energy in an electrical circuit?

Accepted Answer

3

Question 5

Boy wants to invent a simple lighting device. Which equipment is not necessry to be used?

Accepted Answer

0

Question 6

Which is a circuit diagram of connecting the electrical circuit as shown in the figure?

Accepted Answer

3

Question 7

Which circuit diagram makes the light bulb bright?

Accepted Answer

2

Question 8

Joke has two batteries of the same size, two light bulbs of the same size, and wires. He wants to do an experiment with electrical circuits. Which one will make the light bulb the brightest?

Accepted Answer

0

Question 9

Which is correct about connecting electric cells in series?

Accepted Answer

0

Question 10

Look at the battery holder of a remote control. If Namo would like to put batteries to make the remote control work, which method should he use?

Accepted Answer

0

Question 11

Look at the following electrical circuit diagram. Which statement is correct?

Accepted Answer

1

Question 12

Which one explains how shadows are formed?

Accepted Answer

2

Question 13

When objects block the path of light, which object cannot cast an umbra?

Accepted Answer

1

Question 14

Which of the following does not create a penumbra shadow on the screen given that A is the light source, B is the object blocking light, and C is the screen?

Accepted Answer

2

Question 15

When the light source, the object blocking light, and the screen are placed as shown. How will shadows be seen on the screen?

Accepted Answer

3

# 1

เลือกประเภท

Which statement is correct about wind?

# 2

เลือกประเภท

From the picture, when object A is rubbed against object B and then object B is placed near object C,object C will be sucked into moving next to object B. Which are objects A, B, and C, respectively?

# 3

เลือกประเภท

When rub 2 balloons with dry cloth and place them close together, why is there a force of repulsion?

# 4

เลือกประเภท

Which one is responsible for distributing electrical energy in an electrical circuit?