STAAR

Some students measure the acceleration of a wheeled cart being acted on by varying forces. The students record their data in the table shown below. According to the data table, how much force is acting on the cart when the students measure an acceleration of 2.6 m/s?

• 13 N

• 7 N

• 8 N

• 12 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Where are the genes for the physical traits of an organism located?

• on a strand of RNA

• on a chromosome

• inside a hormone

• inside a carbohydrate

Tags

NGSS.HS-LS3-1

A certain type of mite is a parasite of honeybees. Which statement best describes the relationship between the mites and the bees?

• The mites harm the bees by feeding on their blood.

• The mites get honey in return for helping the bees stay healthy.

• The mites help the bees find food but get nothing in return.

• The mites live in the hive of the bees but do not interact with the bees.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

An atom of which element is represented by the model below?

• Carbon

• Boron

• Lithium

• Oxygen

Tags

NGSS.MS-PS1-1

What is the primary function of the chloroplasts in plant cells?

• To break down sugar molecules to release energy

• To store water and nutrients

• To capture light energy and convert it into chemical energy

• To control the entry and exit of substances in and out of the cell

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the term for the movement of particles from an area of higher concentration to an area of lower concentration?

• Osmosis

• Diffusion

• Active transport

• Endocytosis

What is the term for the amount of matter in an object?

• Weight

• Density

• Mass

• Volume

Which of the following is NOT a renewable resource?

• Solar energy

• Wind energy

• Coal

• Hydroelectric power

Which of the following is a chemical change?

• Dissolving salt in water

• Boiling water

• Burning wood

• Melting ice

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following best describes an electron?

• It has no charge and about the same mass as a proton.

• It has a negative charge and much less mass than a proton.

• It has a positive charge and much more mass than a neutron.

• It has a negative charge and about the same mass as a neutron.

Tags

NGSS.MS-PS2-3