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Grade 12 Kinetic & Potential Energy Worksheet with Answers

Grade 12 (US) · Year 13 (UK) · Class 12 (India) · Physics

Unit 2: Energy & ThermodynamicsWork, Energy & PowerNGSS HS-PS3-1

Calculating kinetic energy (½mv²) and gravitational potential energy (mgh). This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Kinetic & Potential Energy

Grade 12 · Physics

Score___ / 12

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Class

Date

Learning goal: Work, Energy & Power · NGSS HS-PS3-1

Directions: Read each question carefully. Circle the correct choice or write your answer on the line. Use the diagram to help you.

Example

A 32 kg object moves at 12 m/s. What is its kinetic energy? (KE = ½mv²)

Answer: 2304 J

RememberPotential and kinetic energy

top: most potentialbottom: most kineticPE = m × g × h (height)KE = ½ × m × v² (speed)Energy changes form butthe total stays the same.
  1. 1

    A 16 kg object is 22 m above the ground. What is its potential energy? (PE = mgh, g = 10 m/s²)

    16kgh = 22 mPE = m g hg = 10 m/s²
  2. 2

    If an object's mass doubles at the same speed, what happens to its kinetic energy?

  3. 3

    A 4 kg object moves at 7 m/s. What is its kinetic energy? (KE = ½mv²)

    4 kgv = 7 m/sKE = ½ m v² = ?
  4. 4

    A 4 kg object is 28 m above the ground. What is its potential energy? (PE = mgh, g = 10 m/s²)

    4kgh = 28 mPE = m g hg = 10 m/s²
  5. 5

    A 17 kg object is 25 m above the ground. What is its potential energy? (PE = mgh, g = 10 m/s²)

    17kgh = 25 mPE = m g hg = 10 m/s²
  6. 6

    An 18 kg object is 6 m above the ground. What is its potential energy? (PE = mgh, g = 10 m/s²)

    18kgh = 6 mPE = m g hg = 10 m/s²
  7. 7

    A roller coaster is at the very top of a hill. Is its potential energy at a maximum or minimum?

    MaximumMinimum
  8. 8

    An 8 kg object is 17 m above the ground. What is its potential energy? (PE = mgh, g = 10 m/s²)

    8kgh = 17 mPE = m g hg = 10 m/s²
  9. 9

    A 4 kg object moves at 11 m/s. What is its kinetic energy? (KE = ½mv²)

    4 kgv = 11 m/sKE = ½ m v² = ?
  10. 10

    A 15 kg object moves at 12 m/s. What is its kinetic energy? (KE = ½mv²)

    15 kgv = 12 m/sKE = ½ m v² = ?
  11. 11

    A 13 kg object moves at 9 m/s. What is its kinetic energy? (KE = ½mv²)

    13 kgv = 9 m/sKE = ½ m v² = ?
  12. 12

    A 1 kg object is 9 m above the ground. What is its potential energy? (PE = mgh, g = 10 m/s²)

    1kgh = 9 mPE = m g hg = 10 m/s²

★ Challenge corner for fast finishers

Why does your breath make fog on a cold window?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/physics/12/kinetic_potential

Answer key (click to show)
  1. 1.3520 J
  2. 2.it doubles
  3. 3.98 J
  4. 4.1120 J
  5. 5.4250 J
  6. 6.1080 J
  7. 7.maximum
  8. 8.1360 J
  9. 9.242 J
  10. 10.1080 J
  11. 11.526.5 J
  12. 12.90 J
  13. ★water vapor in your breath condenses on the cold glass (challenge corner)

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