Science PMA

Barnacle/Whale

Barnacles create home sites by attaching themselves to whales. As the barnacle is a filter feeder, it also gets access to more water (and more food) due to the relationship. The whale is unaffected.

• Parasitism

• Commensalism

• Mutualism

• Predator and prey

A tick and a dog have this type of relationship.

• Commensalism

• Parasitism

• Mutualism

• Predator and Prey

What is the difference between commensalism and parasitism?

Tags

NGSS.MS-LS2-2

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 10 N

• 20 N

• 60 N

• 0 N

Tags

NGSS.MS-PS2-2

How will this object move?

• 20 N to the right

• 20 N to the left

• 80 N to the right

• 80 N to the left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Explain how does the weight of an object affects the magnitude of the friction of a surface.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following statements is false?

• Friction can only slow things down

• Friction can stop things from moving

• Friction can only increase the speed

In an unbalanced forces situation, you will observe all of these characteristics EXCEPT

• Motion

• A net force bigger than 0

• A net force equal 0

• Change in the speed

Tags

NGSS.MS-PS2-2

What organelle contains your genes?

• DNA

• Genomes

• Proteins

• Alleles

Tags

NGSS.MS-LS3-1

The process of which plants intake energy from the sun and convert it to glucose (sugar)

• Solar conversion

• Energy intake

• Photosynthesis

• I don't know

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3