Question 1

Read Question

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 2

Read question

Accepted Answer

G

Answer

F

Answer

J

Answer

H

Question 3

Which is physical change?

Accepted Answer

J

Answer

G

Answer

F

Answer

H

Question 4

Read the question.

Accepted Answer

B

Answer

C

Answer

A

Answer

D

Question 5

Read the question.

Accepted Answer

A

Answer

C

Answer

D

Answer

B

Question 6

Read the question.

Accepted Answer

C

Answer

B

Answer

A

Answer

D

Question 7

What is the net force acting on the block?

Accepted Answer

17 N to the right

Answer

17 N to the left

Answer

53 N to the right

Answer

35 N to the left

Question 8

Calculate the acceleration of the block.

Accepted Answer

1 m/s2

Answer

0 m/s2

Answer

1.9 m/s2

Answer

3.0 m/s2

Question 9

How do the leaves fall and why?

Accepted Answer

Leaves fall in a crooked path because of gravity and air resistance.

Answer

Leaves fall in a straight line because of gravity only.

Answer

Leaves fall in a zigzag path due to magnetic force.

Question 10

How will the train move?

Accepted Answer

It moves to the left with increasing speed.

Answer

It moves to the left with constant speed.

Answer

It moves to the right with increasing speed.

Answer

It moves to the right with constant speed.

Question 11

How many nitrogen atoms are in a molecule of ammonium sulfate (NH4)2SO4?

Accepted Answer

2

Answer

4

Answer

8

Answer

1

Question 12

When baking soda and vinegar are mixed, which of the following evidence that new substances are formed?

Accepted Answer

temperature decrease and gas formation

Answer

temperature change only

Answer

gas formation only

Answer

precipitate

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