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Motion Review
Carter S8P3 Motion Review
| Question | Answer |
|---|---|
| What is velocity? | Speed of something in a given direction |
| What is speed? | Distance traveled per unit of time |
| Explain displacement | Displacement is the distance between the starting point and ending point; not necessarily its full path |
| What is distance? | The full path an object took to get from one point to another |
| Explain acceleration. Tell three ways an object can accelerate. | Acceleration is a change in speed or direction. An object can slow down, speed up, or turn |
| Explain why deceleration is also acceleration. | It is still changing speed |
| What does a flat line on a distance/time graph represent? | Not moving |
| Greater slope up means ____________ on a distance/time graph. | Moving away from starting position |
| Greater slope up means ____________ on a distance/time graph. | Moving away from starting position |
| What does a flat line on a velocity/time graph represent? | Constant speed |
| What does an upward slope on a velocity/time graph represent? | Increasing speed |
| What does a downward slope on a velocity/time graph represent? | Decreasing speed |
| What does constant velocity mean? | Not speeding up or slowing down |
| Tell three ways velocity can change. | It can slow down, speed up, or change direction |
| If an object’s mass increases, its acceleration will ______________. | Decrease |
| Force = _________ x ____________ | Mass x velocity |
| What are unbalanced forces? | The sum of all forces is not equal to 0 |
| What are balanced forces? | The sum of all forces is 0 |
| Net force = _______________ | The sum of all forces |
| What type of force does not cause acceleration? | Balanced force |
| What is magnitude? | Size or extent of a vector |
| What is vector? | A force with both direction and magnitude |
| Explain Newton’s First Law of Motion. | An object in motion will stay in motion, and an object at rest will stay at rest |
| Greater mass = __________ inertia | Greater |
| Explain Newton’s Second Law of Motion. | Acceleration depends on mass and net force |
| Explain Newton’s Third Law of Motion. | For every action, there is an equal and opposite reaction. |
| What is inertia? | An object in motion will stay in motion, and an object at rest will stay at rest |
| What is another name for Newton’s First Law of Motion? | Law of inertia |
| What does air resistance depend upon? | Speed and surface area |
| What is the formula for velocity? | Distance / Time |
| What is the difference between speed and velocity? | Velocity is speed in a given direction |
| What is the difference between mass and weight? | Mass is constant, weight depends on gravity |
| How does your mass on Earth compare to your mass on the moon? | They are the same |
| How does your weight on Earth compare to your weight on the moon? | Earth weight is heavier |
| Explain friction. How does it affect the movement of an object? | It slows it down |
| How does the mass of an object affect the amount of force needed to accelerate the object? | More mass needs more force |
| Explain how to solve a vector diagram (to determine a net force). | Add all forces acting on the object |
Created by:
owenflegal23
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