STAAR Review Science

What is one way humans are trying to positively impact the ocean?

• Fishing

• Creating artificial reefs

• Harvesting oil and natural gas

• Transporting goods in ocean vessels

Tags

NGSS.MS-ESS3-3

8.6C (2019-Q 16)

A large rock is motionless on a flat sidewalk. Which statement best explains why the rock remains motionless?

• F There are no forces acting on the rock.

• G The only force acting on the rock is directed toward the sidewalk.

• H The forces acting on the rock are all balanced.

• J The sidealk exerts an unbalanced force ont the rock.

The picture shows an aerialist walking on a tightrope an holding a balancing bar. An anction-reaction pair of forces exists between -

• F the aerialist's feet and the rope

• G the rope and the balancing bar

• H the two ends of the rope

• J the aerialist's arms and legs

(8.5C 2018 – Q31)

• A

• B

• C

• D

(8.5D 2019-Q17)

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

(8.5D 2018-Q22)

• F

• G

• H

• J

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

(8.5D 2017-Q42)

• F

• G

• H

• J

Tags

NGSS.MS-PS1-1

(8.6A 2019-Q6)

• F

• G

• H

• J

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

The net force on a vehicle that is accelerating at a rate of 1.5m/s² is 1,800 newtons. What is the mass of the vehicle to the nerarst kilogram? (Hint: Force=Mass x Acceleration; F=ma)

Tags

NGSS.MS-PS2-2

(8.6A 2019-Q36)

• F

• G

• H

• J

Tags

NGSS.MS-PS2-2