Exam

Which of the following is true about the compound above?

• It contains 2 atoms of Sulfur (S)

• It is organic

• It contains 2 elements

• It is inorganic

Tags

NGSS.MS-PS1-1

Calculate the Net Force. 

• 60N, Left 

• 40N, Right 

• 0N

• 60N, Right

Tags

NGSS.MS-PS2-2

All of the following are conductors except _______.

• metal spoon

• wire

• iron nail

• plastic spoon

Tags

NGSS.MS-PS2-3

Name the shape of magnets in the given image.

• Horse shoe shaped magnet

• Bar magnet

• All of them

• None of them

What will happen when these magnets are brought close together?

• They will attract each other.

• They will repel each other.

• Both magnets will turn to the left

• Both magnets will turn to the right

Tags

NGSS.MS-PS2-3

What is the net force?

• 20 N 

• 0 N 

• 400 N 

• 40 N 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What force causes a pen to fall to the floor when dropped?

• magnetism

• gravity

• friction

• motion

Tags

NGSS.MS-PS2-4

Why is it easy to slip when there is water on a smooth floor?

• The water is a lubricant and reduces the friction between your feet and the floor.

• The friction between your feet and the floor changes from sliding.

• The water increases the friction between your feet and the floor.

• The friction between your feet and the floor are nothing do with water.

Why do air planes and race cars have sleek shapes?

• to reduce friction from air resistance

• to increase air resistance

• to look more appealing than cats

• so people will buy them

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What keeps the Moon in orbit around Earth?

• Earth's rotation.

• Earth's atmosphere.

• Earth's gravity.

• Earth's shape.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4