Kinetic and Potential Energy Problems

mass = 2 kg, height = 20 m, GPE = _____

• GPE = mass x gravity x height = 2 kg x 9.8 x 20 m = 392 J

• GPE = mass + gravity + height = 2 kg + 9.8 + 20 m = 31.8 J

• GPE = mass / height = 2 kg / 20 m = 0.1J

• GPE = height X gravity / mass = 20 m x 9.8 / 2 kg = 98 J

Tags

NGSS.MS-PS3-2

mass = 12 kg, velocity = 2 m/sec, KE = _____

• KE = 24 Joules

• KE = 12 Joules

• KE = 48 Joules

• KE = 36 Joules

mass = 60 kg, velocity = 30 m/sec, KE = _____

• KE = 27000 J

• KE = 18000 J

• KE = 54000 J

• KE = 9000 J

Tags

NGSS.HS-PS3-2

weight = 8 kg, height = 80 m, GPE = _____

• 64 J

• 800 J

• 6272 J

• 3200 J

mass = 5 kg, velocity = 5 m/sec, KE = _____

• KE = 12.5 J

• KE = 10 J

• KE = 15 J

• KE = 62.5 J

Tags

NGSS.MS-PS3-1

What is the kinetic energy of a 24 kilogram rock rolling down a hill at a velocity of 2 meters per second?

• 48 Joules

• 96 Joules

• 24 Joules

• 12 Joules

Tags

NGSS.HS-PS3-1

Calculate the kinetic energy of a 7 kg mass traveling at a velocity of 4 m/sec.

• 56 J

• 28 J

• 112 J

• 14 J

Tags

NGSS.HS-PS3-2

Sitting perched on a roof at a height of 7 meters, a shingle with a weight of 6 kg has a G.P.E. of how many joules?

• 42 J

• 411.6 J

• 126 J

• 7.0 J

Tags

NGSS.MS-PS3-2

Calculate the kinetic energy of a 1,000 kg mass traveling at a velocity of 9.8 m/sec due to gravity.

• 48,020 Joules

• 47,040 Joules

• 49,000 Joules

• 50,000 Joules

Tags

NGSS.HS-PS3-2

mass = 12 kg, velocity = 2 m/sec, KE = ____

• 24 Nm or J

• 12 Nm or J

• 48 Nm or J

• 6 Nm or J

Tags

NGSS.HS-PS3-2