Force - Gravty and Newtons 3 laws Worksheet - WordMint - Free Printable

Problem Analysis:

The task involves matching definitions with the correct terms related to force, gravity, and Newton's laws of motion. Let's solve it step by step.

---

Definitions and Matching:

#### 1. Strength or energy as an attribute of physical action or movement.
- Definition: This refers to the ability to cause a change in motion or deformation.
- Match: G. Force

#### 2. A coherent typically large body of matter with no definite shape.
- Definition: This describes a state of matter that can flow and take the shape of its container but has a fixed volume.
- Match: O. Mass

#### 3. A unit or system of units used for expressing how much an object weighs.
- Definition: This is a measure of weight, which depends on the gravitational force acting on an object.
- Match: P. Weight

#### 4. The force that attracts a body toward the center of the Earth.
- Definition: This is the gravitational pull exerted by the Earth on objects near its surface.
- Match: E. Gravity

#### 5. The universe using a force that is directly proportional to the product of their masses.
- Definition: This describes the universal law of gravitation, where the force between two masses is proportional to their product and inversely proportional to the square of the distance between them.
- Match: C. Law of Universal Gravitation

#### 6. An object at rest stays at rest and an object in motion stays in motion.
- Definition: This is Newton's first law of motion, also known as the law of inertia.
- Match: N. Newton's 1st Law of Motion

#### 7. A net force is directly proportional to the magnitude of the net force.
- Definition: This is part of Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied and inversely proportional to its mass.
- Match: H. Newton's 2nd Law of Motion

#### 8. For every action, there is an equal and opposite reaction.
- Definition: This is Newton's third law of motion, which states that forces always occur in pairs.
- Match: L. Newton's 3rd Law of Motion

#### 9. A tendency to do nothing or to remain unchanged.
- Definition: This is the property of an object to resist changes in its state of motion.
- Match: M. Inertia

#### 10. The resistance that one surface of an object encounters when moving over another.
- Definition: This is the general term for friction, which opposes motion between surfaces.
- Match: D. Friction

#### 11. Is the friction that exists between a stationary object and the surface on which it's resting.
- Definition: This is static friction, which prevents an object from starting to move.
- Match: A. Static Friction

#### 12. A type of friction motion between two surfaces in contact.
- Definition: This is sliding friction, which occurs when one surface slides over another.
- Match: K. Sliding Friction

#### 13. Is the force resisting the motion when a body (such as a ball and wheel) rolls.
- Definition: This is rolling friction, which is less than sliding friction and occurs when an object rolls.
- Match: B. Rolling Friction

#### 14. Is a force that is caused by air.
- Definition: This is air resistance, which opposes the motion of objects through the air.
- Match: J. Air Resistance

#### 15. Is defined as the sum of all the forces acting on an object.
- Definition: This is the net force, which determines the overall effect of multiple forces on an object.
- Match: F. Net Force

#### 16. The velocity at which a falling object moves through a medium as air.
- Definition: This is terminal velocity, where the gravitational force equals the drag force, resulting in constant velocity.
- Match: I. Terminal Velocity

---

Final Answer:

\[
\boxed{
\begin{array}{ll}
1. & G. \text{Force} \\
2. & O. \text{Mass} \\
3. & P. \text{Weight} \\
4. & E. \text{Gravity} \\
5. & C. \text{Law of Universal Gravitation} \\
6. & N. \text{Newton's 1st Law of Motion} \\
7. & H. \text{Newton's 2nd Law of Motion} \\
8. & L. \text{Newton's 3rd Law of Motion} \\
9. & M. \text{Inertia} \\
10. & D. \text{Friction} \\
11. & A. \text{Static Friction} \\
12. & K. \text{Sliding Friction} \\
13. & B. \text{Rolling Friction} \\
14. & J. \text{Air Resistance} \\
15. & F. \text{Net Force} \\
16. & I. \text{Terminal Velocity} \\
\end{array}
}
\]