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Motion Review
| Question | Answer |
|---|---|
| What is velocity? | Speed in a given direction |
| What is speed? | The measure measure of distance traveled per unit of time |
| Explain displacement. | The change in position from an object’s original location |
| What is distance? | The amount of ground an object has covered during its motion |
| Explain why deceleration is also acceleration. | Deceleration is also acceleration because it’s still the change of speed and velocity |
| What does a flat line on a distance/time graph represent? | Stopped |
| Greater slope up means ____________ on a distance/time graph. | Constant speed away from starting point |
| Greater slope down means ____________ on a distance/time graph. | Constant speed towards the starting position |
| What does a flat line on a velocity/time graph represent? | Steady Speed |
| What does an upward slope on a velocity/time graph represent? | Acceleration |
| What does a downward slope on a velocity/time graph represent? | Deceleration |
| What does constant velocity mean? | It means they the speed or directions is not changing |
| Tell three ways velocity can change. | Slowing down, Speeding up, and Change in direction |
| If an object’s mass increases, its acceleration will ______________. | also change |
| Force = _________ x ____________ | Mass x acceleration |
| What are unbalanced forces? | Unequal forces that act on an object. |
| What are balanced forces? | Equal forces on an object in opposite directions |
| Net force = _______________ | The sum of all forces acting on an object |
| What type of force does not cause acceleration? | Balanced forces |
| What is magnitude? | Sizes of the force |
| What is vector? | Direction of the force |
| Explain Newton’s First Law of Motion. | A object in motion will stay in motion and a object at rest will stay at rest unless a force is acting upon it. |
| Greater mass = __________ inertia | Greater |
| Explain Newton’s Second Law of Motion. | When a force acts on an object, the object will accelerate in the direction of the force |
| Explain Newton’s Third Law of Motion. | Every force or action has an equal and opposite reaction |
| What is inertia? | The tendency of an object to resist any change in its motion |
| What is another name for Newton’s First Law of Motion? | Law of Inertia |
| What does air resistance depend upon? | Size, Shape, Speed, and Surface |
| What is the formula for velocity? | Distance divided by time |
| What is the difference between speed and velocity? | Velocity is speed in a certain direction while speed is the distance over the amount of time traveled |
| What is the difference between mass and weight? | Mass is the amount of matter in a object while weight is the amount of gravity that is pulling down on an object |
| How does your mass on Earth compare to your mass on the moon? | Your mass will not change if your on Earth or on the Moon. |
| How does your weight on Earth compare to your weight on the moon? | Your weight on Earth will be different than your weight on the moon |
| Explain friction. How does it affect the movement of an object? | Friction is the rubbing of to object together. It affects the movement of on object by slowing the object down. |
| How does the mass of an object affect the amount of force needed to accelerate the object? | The more mass an object has the more force needed to accelerate the object. |
| Explain how to solve a vector diagram (to determine a net force). | You have to find the sum of all forces on an object to find the net force. |
Created by:
ltapley
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