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Grade 12 Newton's Second Law (F = ma) Worksheet with Answers

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

Unit 5: ReviewMixed Formula PracticeNGSS HS-PS2-1

Using F = ma to find force, mass or acceleration, including net force. This free high school worksheet has 16 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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Newton's Second Law (F = ma)

Grade 12 · Physics

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Class

Date

Learning goal: Mixed Formula Practice · NGSS HS-PS2-1

Directions: This worksheet has 2 parts. Read the instructions at the start of each part.

Example

What force is needed to accelerate a 13 kg object at 8 m/s²?

Answer: 104 N

Part A

Label the diagram. Use the words in the box.

Word bank

applied forcefrictiongravitynormal force
1234
  1. 1
  2. 2
  3. 3
  4. 4
Part B

Answer each question. Use full sentences where you can.

  1. 5

    A net force of 3 N acts on a 1 kg object. What is its acceleration?

    1 kgF = 3 Na = ?
  2. 6

    What force is needed to accelerate a 49 kg object at 10 m/s²?

    49 kgF = ?a = 10 m/s²
  3. 7

    What force is needed to accelerate a 33 kg object at 2 m/s²?

    33 kgF = ?a = 2 m/s²
  4. 8

    A net force of 105 N gives an object an acceleration of 3 m/s². What is its mass?

    m = ?F = 105 Na = 3 m/s²
  5. 9

    A net force of 232 N gives an object an acceleration of 8 m/s². What is its mass?

    m = ?F = 232 Na = 8 m/s²
  6. 10

    A net force of 195 N acts on a 39 kg object. What is its acceleration?

    39 kgF = 195 Na = ?
  7. 11

    A net force of 392 N gives an object an acceleration of 8 m/s². What is its mass?

    m = ?F = 392 Na = 8 m/s²
  8. 12

    A net force of 264 N acts on a 24 kg object. What is its acceleration?

    24 kgF = 264 Na = ?
  9. 13

    A net force of 208 N acts on a 26 kg object. What is its acceleration?

    26 kgF = 208 Na = ?
  10. 14

    A net force of 66 N gives an object an acceleration of 6 m/s². What is its mass?

    m = ?F = 66 Na = 6 m/s²
  11. 15

    What force is needed to accelerate a 30 kg object at 9 m/s²?

    30 kgF = ?a = 9 m/s²
  12. 16

    What force is needed to accelerate a 22 kg object at 12 m/s²?

    22 kgF = ?a = 12 m/s²

★ Challenge corner for fast finishers

Why do you see lightning before you hear thunder?

How did I do?

Teacher's comments

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

Answer key (click to show)
  1. 1.applied force
  2. 2.friction
  3. 3.gravity
  4. 4.normal force
  5. 5.3 m/s²
  6. 6.490 N
  7. 7.66 N
  8. 8.35 kg
  9. 9.29 kg
  10. 10.5 m/s²
  11. 11.49 kg
  12. 12.11 m/s²
  13. 13.8 m/s²
  14. 14.11 kg
  15. 15.270 N
  16. 16.264 N
  17. ★light travels much faster than sound (challenge corner)

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