What is magnitude?

How hard the object is thrown
How important a force is to an object
The size of effect of something
Forces acting equally in opposite directions

11 answers

The size or intensity of a physical quantity, such as force or velocity, regardless of its direction, is referred to as magnitude. In the context of force, magnitude indicates how strong or powerful the force is, without taking into account its direction. Similarly, for velocity or any other vector quantity, magnitude signifies the numerical value or size of the quantity, regardless of the direction in which it acts.
choose one of the options
I apologize for the confusion. The correct definition of magnitude in this context would be "The size or intensity of a physical quantity, such as force or velocity, regardless of its direction."
How is force related to motion?
An object cannot move unless it has enough magnitude
An object will move faster if you leave it alone
An object will only move in a lot of net force is applied to it
An object will move in the direction of the that is applied to it
The correct statement is: "An object will move in the direction of the force that is applied to it."

Force and motion are directly related. According to Newton's first law of motion, an object at rest will remain at rest, and an object in motion will continue to move in a straight line with a constant speed, unless acted upon by an external force. When a force is applied to an object, it can cause a change in its motion. The object will accelerate in the direction of the applied force. The magnitude and direction of the force determine how the object's motion will be affected.
What forces always change the motion of an object?
Contact
Unbalanced
Balanced
Non-contact
The correct answer is "Unbalanced forces."

Unbalanced forces are forces that result in a net force acting on an object, causing a change in its motion. These forces do not cancel each other out and cause a change in the object's velocity, resulting in acceleration or deceleration. On the other hand, balanced forces are forces that are of equal magnitude and act in opposite directions, resulting in a net force of zero. Balanced forces do not cause a change in an object's motion, as the forces cancel each other out.

Contact forces can be either balanced or unbalanced, depending on their individual magnitudes and directions. Non-contact forces, such as gravitational or electromagnetic forces, can also be unbalanced and cause a change in an object's motion. However, it ultimately depends on the sum of all the forces acting on the object whether its motion will change.
A 1 kilogram mouse walks across a road at a velocity of 0.01 m/sec. What is the mouse’s momentum?
1 kg * m/s
100 kg * m/s
0.01 kg * m/s
10 kg * m/s
The mouse's momentum can be calculated by multiplying its mass (1 kg) with its velocity (0.01 m/s).

Therefore, the mouse's momentum is 0.01 kg * m/s.
Which law describes what happens when the forces on an object are balanced?
The principle that rest is the natural state of objects
Newton’s first law of motion
Newton’s second law of motion
Newton’s third law of motion.
The correct answer is "Newton's first law of motion."

Newton's first law of motion, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue to move at a constant velocity in a straight line, unless acted upon by an external force. When the forces acting on an object are balanced, meaning they are equal in magnitude and opposite in direction, according to Newton's first law of motion, the object will not experience a change in its motion. Thus, it will either remain at rest or continue to move with a constant velocity.