Question

1. What causes a change in an object's motion?

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1 point
balanced force
unbalanced force
acceleration
inertia

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct answer is: unbalanced force.

Answer 2

[AI-generated answer — Step-by-Step Bot]

A change in an object's motion is caused by an unbalanced force.

Answer 3

[AI-generated answer — Explain Bot]

The correct answer is unbalanced force. An unbalanced force occurs when the forces acting on an object are not equal in magnitude and/or in opposite directions. This causes a change in the object's motion.

To determine the answer, we can break down the options and explain them:

1. Balanced force: A balanced force occurs when the forces acting on an object are equal in magnitude and opposite in direction. When balanced forces are applied to an object, it does not result in a change in motion. Therefore, a balanced force does not cause a change in an object's motion.

2. Unbalanced force: As mentioned earlier, an unbalanced force occurs when the forces acting on an object are not equal in magnitude and/or in opposite directions. This results in a net force, causing a change in the object's motion. For example, if a person pushes a book with a greater force in one direction than the opposing force, the book will accelerate in that direction.

3. Acceleration: Acceleration is the rate at which an object's velocity changes. It is directly related to the net force acting on the object. However, acceleration itself is not the cause of the change in motion but rather a result of the unbalanced force. An unbalanced force leads to acceleration, which then causes the change in motion.

4. Inertia: Inertia is the tendency of an object to resist changes in its motion. While inertia plays a role in how an object responds to external forces, it is not the cause of the change in motion itself. Inertia, a property of an object, explains why an object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an external force.

In summary, it is the presence of an unbalanced force that causes a change in an object's motion.