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Balanced and unbalanced forces

3rd grade (Year 4 in England) · 16 questions · Common Core: NGSS.3-PS2-1, NGSS.MS-PS2-2 · England: KS3 Physics: Motion and forces (balanced forces), KS4 Combined Science: Forces

Name

Date

Score/ 16

  1. Question 1

    A box is pushed with 30 N to the left and 65 N to the right. What is the size of the resultant force, in newtons?

    30 N65 N

    AnswerN

  2. Question 2

    Balanced forces: which statement is NOT true?

    • A. When forces are balanced, a moving object keeps moving at the same speed in the same direction.
    • B. A book resting on a table has balanced forces acting on it.
    • C. A still object has no forces acting on it.
    • D. Forces are measured in newtons (N).
  3. Question 3

    A sledge is at rest. It is pulled with 50 N to the left and 40 N to the right. What happens?

    50 N40 N
    • A. it stays still
    • B. it starts to move right
    • C. it starts to move left
  4. Question 4

    A box is pushed with 95 N to the left and 70 N to the right. What is the size of the resultant force, in newtons?

    95 N70 N

    AnswerN

  5. Question 5

    Balanced forces: which statement is NOT true?

    • A. Forces are measured in newtons (N).
    • B. A still object has no forces acting on it.
    • C. A book resting on a table has balanced forces acting on it.
    • D. When forces are balanced, a moving object keeps moving at the same speed in the same direction.
  6. Question 6

    A sledge is at rest. It is pulled with 120 N to the left and 60 N to the right. What happens?

    120 N60 N
    • A. it stays still
    • B. it starts to move right
    • C. it starts to move left
  7. Question 7

    A box is pushed with 15 N to the left and 90 N to the right. What is the size of the resultant force, in newtons?

    15 N90 N

    AnswerN

  8. Question 8

    Balanced forces: which statement is NOT true?

    • A. If an object is moving, the forces on it cannot be balanced.
    • B. When forces are balanced, a moving object keeps moving at the same speed in the same direction.
    • C. A book resting on a table has balanced forces acting on it.
    • D. Forces are measured in newtons (N).
  9. Question 9

    A sledge is at rest. It is pulled with 30 N to the left and 20 N to the right. What happens?

    30 N20 N
    • A. it stays still
    • B. it starts to move right
    • C. it starts to move left
  10. Question 10

    A box is pushed with 15 N to the left and 35 N to the right. What is the size of the resultant force, in newtons?

    15 N35 N

    AnswerN

  11. Question 11

    Balanced forces: which statement is NOT true?

    • A. Forces are measured in newtons (N).
    • B. A book resting on a table has balanced forces acting on it.
    • C. A still object has no forces acting on it.
    • D. When forces are balanced, a still object stays still.
  12. Question 12

    A sledge is at rest. It is pulled with 90 N to the left and 10 N to the right. What happens?

    90 N10 N
    • A. it stays still
    • B. it starts to move right
    • C. it starts to move left
  13. Question 13

    A box is pushed with 100 N to the left and 90 N to the right. What is the size of the resultant force, in newtons?

    100 N90 N

    AnswerN

  14. Question 14

    Balanced forces: which statement is NOT true?

    • A. When forces are balanced, a moving object keeps moving at the same speed in the same direction.
    • B. When forces are balanced, a still object stays still.
    • C. Forces are measured in newtons (N).
    • D. Forces are measured in kilograms.
  15. Question 15

    A sledge is at rest. It is pulled with 120 N to the left and 30 N to the right. What happens?

    120 N30 N
    • A. it stays still
    • B. it starts to move right
    • C. it starts to move left
  16. Question 16

    A box is pushed with 65 N to the left and 55 N to the right. What is the size of the resultant force, in newtons?

    65 N55 N

    AnswerN

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  1. 35 N
  2. A still object has no forces acting on it.
  3. it starts to move left
  4. 25 N
  5. A still object has no forces acting on it.
  6. it starts to move left
  7. 75 N
  8. If an object is moving, the forces on it cannot be balanced.
  9. it starts to move left
  10. 20 N
  11. A still object has no forces acting on it.
  12. it starts to move left
  13. 10 N
  14. Forces are measured in kilograms.
  15. it starts to move left
  16. 10 N