Forces review and CER practice

Which option has a box drawn around the boundaries of the system.

• 
• 
• 

Tags

NGSS.MS-ETS1-1

Draw in the correct force vectors.

Answer explanation

The vectors should look like the image.

Tags

NGSS.MS-PS2-2

If the force applied to block A was increased, how would that affect it's motion?

• The change in motion would decrease.

• The change in motion will increase.

• The change in motion would not be different.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Match the following.

• Unbalanced Forces

• Control or Constant Variable

• Balanced Forces

• Dependent Variable

• Variables that are kept the same.

• 
• Variables that are measured.

• Independent Variable

• 1 thing that's changed in investigations

• 

Tags

NGSS.MS-PS3-1

"the solution must be painted green and gold" is an example of ​ a (a)   "It would be nice if the solution was painted green and gold" is an example of a​ (b)   .

• Constraint
• criteria
• suggestion
• recommendation

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Type 2 vocabulary words from our forces unit!

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Material that causes forces to act over a larger area to reduce damage.

• Sum of Forces

• Forces

• Cushioning

How a total force is divided into many smaller forces.

• vector decomposition

• Distribution of Forces:

• Forces cannot be divided.

• Total forces are always equal to each other.

When object is changing position it is called ______.

• Motion

• Speed

• Density

Tags

NGSS.MS-PS2-2

Organize the items into the correct category

Groups:

(a) Claim

,

(b) Evidence

,

(c) Reasoning

• Facts based on fair scientific testing.

• Since the phone wasn't damaged, our materials must have distributed the force of the fall.

• 
• A statement that is believed to be true.

• My group's cell phone case is the best option for Marc.

• 
• 
• Objects with more mass require more force to change it's motion.

• Uses logic and sensible thinking.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3