A 2 kg basketball flies across the small gym during the KC vs. Dade game. The basketball reached a height of 11 feet. Which is the potential energy of the basketball?

• 22 J

• 100.6 J

• 215.6 J

• 261 J

Tags

NGSS.MS-PS3-2

Which point has the most potential energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

Mr. Dixson runs North down the 8th Grade hallway 30 m from his desk. He then turns around and runs South 60 m. What is Mr. Dixson's displacement?

• 30 m

• 60 m

• 70 m

• 90 m

1. Cariah, 17kg, is late to class and speeds down the hallway. She runs with an initial velocity of 5m/s and accelerates to 20m/s. How much work did she do?

• 150.5 J

• 212.5 J

• 3187.5 J

• 3400 J

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following describes the potential and kinetic energy for "Girl B"

• PE= 200 J, KE= 200 J

• PE= 400 J, KE= 0 J

• PE= 100 J, KE= 300 J

• PE= 0 J, KE= 400 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What is the mechanical energy (ME) of a 2 kg baseball being pitched at a height of 7 m and 6.7 m/s?

• 44.89 J

• 137.2 J

• 182.09 J

• 190.6 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

An object slides across a friction-less table with an initial velocity of 30 m/s. The wind starts to blow in the direction the mass is moving causing it to accelerate at a constant rate. After 2 seconds, the mass is moving at a velocity of 60 m/s. What is the acceleration of the mass?

• 15 m/s²

• 30 m/s²

• 65 m/s²

• 100 m/s²

Tags

NGSS.MS-PS2-2

Describe the motion from 2 to 3 seconds.

• decelerating

• accelerating

• at rest

• constant speed

Tags

NGSS.MS-PS3-1

Peanut ran 50 meters in 10 seconds.  What was Peanut's average speed?

• 2 m/s
• 5 km/h
• 5 m/s
• 5 m/s North

When an object has a net force of 0 N, it is an example of what kind of force?

• Balanced
• Unbalanced
• Acceleration
• Gravity