resultant force Flashcards
What is the definition of resultant force?
The resultant force is the single force that represents the vector sum of all individual forces acting on an object.
True or False: The resultant force can be zero.
True
If two forces of 5 N and 3 N act in the same direction, what is the resultant force?
8 N
Fill in the blank: The resultant force is calculated by ______ all the individual forces acting on an object.
adding
What happens to an object when the resultant force acting on it is zero?
The object remains in its state of motion, either at rest or moving at constant velocity.
What is the unit of force in the International System of Units (SI)?
Newton (N)
If a 10 N force acts to the right and a 4 N force acts to the left, what is the resultant force?
6 N to the right
True or False: The direction of the resultant force is always the same as the direction of the largest individual force.
False
What is the resultant force when two equal and opposite forces act on an object?
Zero
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
B) 10 N up and 5 N down
What is the graphical method used to find the resultant force?
Vector addition using a force diagram.
Fill in the blank: When forces are acting at angles to each other, the resultant force can be found using ______.
trigonometry
What is the resultant force if three forces of 2 N, 3 N, and 4 N act in the same direction?
9 N
True or False: The magnitude of the resultant force can be greater than the sum of the individual forces.
False
Short Answer: What is the effect of a resultant force on an object?
It causes the object to accelerate in the direction of the resultant force.
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
D) Speed of the object
How do you determine the direction of the resultant force when combining forces acting at angles?
By using vector components and trigonometric functions.
Fill in the blank: The resultant force is also referred to as the ______ force.
net
What is the resultant force of a 15 N force acting east and a 10 N force acting west?
5 N east
True or False: The resultant force can be calculated using only the magnitudes of the forces involved.
False
What is the first step in calculating the resultant force of multiple forces?
Identify the direction and magnitude of each force.
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) 5 N down
Short Answer: Why is it important to consider both magnitude and direction when calculating resultant force?
Because forces are vector quantities and their effects depend on both aspects.
What term describes forces that are equal in size but opposite in direction?
Balanced forces
Fill in the blank: The resultant force can be found by drawing a ______ diagram.
free-body
True or False: The resultant force can change if additional forces are applied.
True