resultant force Flashcards

1
Q

What is the definition of resultant force?

A

The resultant force is the single force that represents the vector sum of all individual forces acting on an object.

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2
Q

True or False: The resultant force can be zero.

A

True

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3
Q

If two forces of 5 N and 3 N act in the same direction, what is the resultant force?

A

8 N

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4
Q

Fill in the blank: The resultant force is calculated by ______ all the individual forces acting on an object.

A

adding

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5
Q

What happens to an object when the resultant force acting on it is zero?

A

The object remains in its state of motion, either at rest or moving at constant velocity.

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6
Q

What is the unit of force in the International System of Units (SI)?

A

Newton (N)

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7
Q

If a 10 N force acts to the right and a 4 N force acts to the left, what is the resultant force?

A

6 N to the right

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8
Q

True or False: The direction of the resultant force is always the same as the direction of the largest individual force.

A

False

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9
Q

What is the resultant force when two equal and opposite forces act on an object?

A

Zero

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10
Q

Multiple Choice: Which of the following scenarios results in a non-zero resultant force? A) 5 N to the right and 5 N to the left B) 10 N up and 5 N down C) 3 N left and 3 N left

A

B) 10 N up and 5 N down

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11
Q

What is the graphical method used to find the resultant force?

A

Vector addition using a force diagram.

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12
Q

Fill in the blank: When forces are acting at angles to each other, the resultant force can be found using ______.

A

trigonometry

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13
Q

What is the resultant force if three forces of 2 N, 3 N, and 4 N act in the same direction?

A

9 N

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14
Q

True or False: The magnitude of the resultant force can be greater than the sum of the individual forces.

A

False

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15
Q

Short Answer: What is the effect of a resultant force on an object?

A

It causes the object to accelerate in the direction of the resultant force.

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16
Q

Multiple Choice: Which of the following is NOT a factor affecting resultant force? A) Magnitude of forces B) Direction of forces C) Mass of the object D) Speed of the object

A

D) Speed of the object

17
Q

How do you determine the direction of the resultant force when combining forces acting at angles?

A

By using vector components and trigonometric functions.

18
Q

Fill in the blank: The resultant force is also referred to as the ______ force.

19
Q

What is the resultant force of a 15 N force acting east and a 10 N force acting west?

20
Q

True or False: The resultant force can be calculated using only the magnitudes of the forces involved.

21
Q

What is the first step in calculating the resultant force of multiple forces?

A

Identify the direction and magnitude of each force.

22
Q

Multiple Choice: If a 20 N force acts downward and a 15 N force acts upward, what is the resultant force? A) 5 N down B) 5 N up C) 35 N down

A

A) 5 N down

23
Q

Short Answer: Why is it important to consider both magnitude and direction when calculating resultant force?

A

Because forces are vector quantities and their effects depend on both aspects.

24
Q

What term describes forces that are equal in size but opposite in direction?

A

Balanced forces

25
Q

Fill in the blank: The resultant force can be found by drawing a ______ diagram.

26
Q

True or False: The resultant force can change if additional forces are applied.