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Forces
Chapter 2 Quiz
| Question/Term | Answer/Definition |
|---|---|
| How is Force described? | Its strength and the direction in which it acts |
| What does Unbalanced Forces acting on an object result in? | A net force and a change in the object's motion |
| Does Balanced Forces acting on an object change the object's motion? | No, it does not change the object's motion |
| A push or pull | Force |
| The strength of a force is measured in the SI unit | Newton |
| The combination of all forces acting on an object | Net Force |
| Forces that produce a nonzero net force, which changes an object's motion | Unbalanced Forces |
| Equal forces acting on an object in opposite directions | Balanced Forces |
| Force that two surfaces exert on each other when they rub against each other | Friction |
| Friction that acts on objects that are not moving | Static Friction |
| Friction that occurs when one solid surface slides over another | Sliding Friction |
| Friction that occurs when an object rolls over a surface | Rolling Friction |
| Friction that occurs as an object moves through a fluid | Fluid Friction |
| A force that pulls objects toward each other | Gravity |
| A measure of the amount of matter in an object | Mass |
| The force of gravity on a person or object at the surface of a planet | Weight |
| When the only force acting on an object is gravity | Free Fall |
| Objects falling through air experience a type of fluid friction | Air Resistance |
| The greatest velocity a falling object reaches | Terminal Velocity |
| An object that is thrown | Projectile |
| Motion in a straight line | Linear Motion |
| Series of small but fast back and forth movements or side to side | Vibrational Motion |
| Motion along a curved path | Projectile Motion |
| Circular motion of an object | Centripetal Motion |
| Spinning motion around a fixed/stationary point | Rotational Motion |
| An object at rest ail remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity, unless it is acted upon by an unbalanced force | Newton's First Law of Motion |
| The tendency of an object to resist a change motion | Interia |
| How do you get Acceleration? | Net Force / Mass |
| Acceleration depends on the object's mass and on the net force acting on the object | Newton's Second Law of Motion |
| A characteristic of a moving object that is related to the mass and the velocity of the object | Momentum |
| In the absence of outside forces, the total momentum of objects that interact do not change | Law of Conservation of Momentum |
| If one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object | Newton's Third Law of Motion |
| How do you get Momentum? | Mass x Velocity |
Created by:
Flyseppe
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