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
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?
AnswerN
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).
Question 3
A sledge is at rest. It is pulled with 50 N to the left and 40 N to the right. What happens?
- A. it stays still
- B. it starts to move right
- C. it starts to move left
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?
AnswerN
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.
Question 6
A sledge is at rest. It is pulled with 120 N to the left and 60 N to the right. What happens?
- A. it stays still
- B. it starts to move right
- C. it starts to move left
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?
AnswerN
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).
Question 9
A sledge is at rest. It is pulled with 30 N to the left and 20 N to the right. What happens?
- A. it stays still
- B. it starts to move right
- C. it starts to move left
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?
AnswerN
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.
Question 12
A sledge is at rest. It is pulled with 90 N to the left and 10 N to the right. What happens?
- A. it stays still
- B. it starts to move right
- C. it starts to move left
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?
AnswerN
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.
Question 15
A sledge is at rest. It is pulled with 120 N to the left and 30 N to the right. What happens?
- A. it stays still
- B. it starts to move right
- C. it starts to move left
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?
AnswerN
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