Reporting Category

The net force on a vehicle that is accelerating at a rate of 1.5 m/s2 is 1,800 newtons. What is the mass of the vehicle to the nearest kilogram?

• 2700

• 1801.5

• 1200

• .0083

Tags

NGSS.MS-PS2-2

Which answer choice correctly describes the ball’s kinetic and potential energy?

• The ball has more potential energy at position X than at position Z.

• The ball has more kinetic energy at position Y than at position W.

• The potential energy and kinetic energy of the ball are equal at position X.

• The potential energy and kinetic energy of the ball are greatest at position Z.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Immediately after they push away from each other, how does the motion of the mother and daughter change?

• The mother moves forward, and the daughter moves backward with a greater acceleration.

• Both move forward, but the mother moves with a greater acceleration.

• The mother moves backward, and the daughter moves forward with a greater acceleration.

• Both move backward, but the daughter moves with a greater acceleration.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The students most likely have which type of rock?

• Coal

• Dolomite

• Peridotite

• Sandstone

List the steps of the scientific method

d

e

f

c

b

a

Draw conclusions

Analyze results

Ask a question

Form a hypothesis

Communicate results

Conduct experiment

Tags

NGSS.MS-PS2-2

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Which table best shows the average speed of the toy car at different time intervals?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-1

Which energy transformation happens when the blades are spinning as shown?

• Electrical to mechanical

• Chemical to electrical

• Mechanical to electrical

• Chemical to mechanical

Which answer choice best describes the movement of the object between the times of 0 and 6 seconds on the graph?

• Moving at a constant speed

• Moving toward the north

• Accelerating

• Stopped

Tags

NGSS.MS-PS3-1

Which amino acid would be coded first from the DNA strand being transcribed?

• Cys

• Phe

• Ile

• Met

Answer explanation

The first mRNA codon is AUG. AUG on the codon chart codes for the amino acid Met.

Tags

NGSS.HS-LS1-1